THANK YOU! That's all I needed to know. New to r/c 2 strokes, don't know crap about glow plugs.... I was baffled on "how the fudge does one's engine continue to run without ignition? The chemical reaction explanation instantly cleared it up 😮
No worries buds! Glad it helped ya! And here's a wired fact. There is no such thing as a nitro engine! 🤨 I have video explaining that to a little farther down in my videos. Keep on burning nitro! And thanks for watchin! 🍻🤘🏻💯
Lol that's why I called it an "rc 2 stroke".... I was a small engine mechanic for a few years, but we're talking about fuel/oil with sparks and Reed valves.... so no continuous ignition source had me effed up. That's where the chemical reaction was a huge ahhhh haaaa moment and the door has opened
@@jacobyuenger2884 Yup that's all they are just a little 2 stroke engine that runs on a catalytic reaction. a lot of people think they are a diesel because they use a glow plug but they are not. Diesel RC engines are a real thing but sadly nobody makes them anymore mostly only for airplane use I actually have some video of that as well I have a few left over from the ex Soviet Union of Russia
Thanks for some really good information I just get started in nitro engine and I really love it I've been asking a lot of questions about the fuel with no real answer so thanks much I would love to see some more videos about the engine.
It's the truth here man. Real talk unlikely a lot of other people that just talk out their ass about stuff they know nothing about. Unfortunately. And witch engine are you referring to? 🍻👊🏻
So glad I subscribed to this channel. Your killin it brother really. Give this man a LIKE! because no one takes the time to explain like this man does I appreciate your time. Its in the 30s and I've been burning nitro in my t maxx and I did run into a few issues with tuning but got it good enough to burn a few tanks an have some fun.. but this video made sense thankyou Really. Cheers 🍻
Very good explaining of glow plugs. Depending of some brands, hot and cold plug numbers could also be opposite. Like you said, use glow plugs that manufacturers are recommending. Hope you get well soon.
I try to tell people it's like when you put the wrong spark plugs in your car sure you can put in any old spark plug and it will get down the street but it's not correct and it can cause other issues. But for some reason or another people don't seem to think about that. Lol and thanks man I hope it doesn't get any worse 😅 🍻
Awesome video! I was just wondering about glow plugs since my rb mods 3.7 is a turbo n wanted to know the differences!! Thanks for the videos amazing help!! Wish u a quick recovery on the fukin covid !!!!!!! Nitro on !!!!
I have to agree. Just because glow plug lit red doesn't mean its good that's if its bright red though. That is the first thing I do I check glow plug. It makes it little easier to pin point other problems. Good job explaining it.
Finally someone else who actually knows his sh*t and i love it! i showed this vid to a buddy of mine who raced both nitro and gasoline cars in the older days like.. 10-15 years ago.. but he kept saying that i need to change my glow plug depending on the temp outside and retune the engine.. yes retune the carb due to the air density difference between winter and summer seasons but otherwise i never heard of changing the plug every temp/season change..
Maybe in some strange world people believe that actually works but it doesn't that's like changing the spark plugs for the weather conditions in the car that you drive to work everyday it's just absolutely stupid keep the same plug that's recommended you're round you won't gain anything by changing it
@@davelowets another thing that someone brought to my attention one day and which i tested myself is that hot plugs tend to burn brighter then cold plugs. you may or may not notice it when you pull the plug out of the head and check it with the igniter.. but you gotta consider that the igniter actually boosts the plug brightness to get the engine going.. once you pull the igniter off and the engine runs, the plug burns less bright but just enough to burn fuel. But it is a given that cold plugs need to run leaner settings (less bright so not able to burn a bunch of fuel) and hot plugs (because they burn brighter) need to run richer.
@@VintageCR The difference between hot and cold plugs is not to be able to run different air/fuel ratios... The difference between heat ranges of the plugs is for changing ignition timing. A hotter plug means more timing btdc, and a colder plug is less.
Bug I’ve looked everywhere on the internet to see what plug I should have in my 3.3 Traxxas and you are the best. I looked at a chart and kinda went nuts for the last few days. Guy at the hobby shop told me run a os#8 it’ll be perfect. And I’m having to leave my igniter on to run my tmaxx. So I am going tomorrow to buy an lc3 like you said in your video. Thank you so much
No worries! All Traxxas engines will take an LC3 or lc4 plug. The only they suggest OS 8 is because they have absolutely no idea what they are doing and selling people the wrong plugs. Sure it works but it reduces the compression ratio in standard reach plug engines and will move the flame front higher into the combustion area as well as effect the timing. Some engines are less sensitive to it than others but it definitely pays to have the correct plug for your engine. Sure lawnmower spark plugs will work in your 350 chevy but it's not correct. I don't understand why people have such a difficult time understanding that. 💯
Idk either lol. As someone who has spent a lot of time working on cars and trucks more specifically the older Chevys the plug does matter. So that being said I’m trying to tune my 3.3 for mostly off road and dirt tracks. What plug do you recommend I use?
@@Freakshows_house the os lc3 is a great basher plug easy tuning and is less sensitive to running richer. And longer idle times They don't make it run any hotter if that's what your Worried about. Same plug i run in all my Traxxas engines. They are a little more money but absolutely worth it. The Traxxas plugs are cheaply made poor quality and don't last or offer good tuning stability. The lc3 also works great if you burn 0% nitro like i do.
@@thebug4046 how the hell do you run 0% nitro? Isn’t that the fuel used to make the plug continuously glow? Do you have a video explaining this I have to know. And does it increase performance and lifespan?
@@Freakshows_house no such thing as a nitro engine. They don't require nitromethane to run. They are glow engines what run on glow fuel witch is just two ingredients methanol and oil being klotz super techniplate. Nitro is added for easier tuning and performance but if you adjust your compression ratio you can make excellent power if you know what you are doing. I have video explaining and showing engines running with 0% nitro. My airplane engines get an 80/20 mix my cars and trucks get 90/10 mix. It's usually what I run whatever the hobby shop is out of fuel or they don't have the fuel i want witch is sidewinder pro blend 30% nitro 10% oil usually. The methanol is what holds the catalytic reaction with the platinum on the coil of the glow plug. Hence why when you remove the igniter and the engine shuts of is because it can't hold the catalytic reaction by itself anymore.
Great videos, your fortunate covid is mild for you. You can’t say it’s not as bad as it’s made out to be. Other people are not so lucky 😢 different for each person. Hope you get better 👍🏻
Bug I love this video!!! Awesome information was wondering what plugs do you recommend or bee better to run in the 2.5 2.5r and the 3.3 ? I know the manual says a long med I guess I’m asking what others are long med because some don’t say if they are long or short ?
The glow plugs for the gas engines are interesting. I still think the small Diesel engine that has the T-handle on the top (to change the rpm/compression ratio) is really neat. Just thinking about how it works/envisioning what’s happening in the combustion chamber as you screw it in/out is really neat. LoL fun too. I assume they were designed for constant Rpm ran air planes (no throttle servo). That correct? Thx for the vid Bug 🔥💪🏻
They also make rc diesel engines over here in uk. P.A.W engines are available in rc versions. Not run one though although there 2.49 contest diesel from the 80s absolutely rips on a 7x4! Nice video on glow plug facts nice that you cleared up the know nothings! Bug 404 hope you feel better soon. F!#@ing covid!
This video answered a lot of questions I had in regards to the science of it all, thanks. I have an HPI 4.6 on 25% fuel and I'm currently using Fastrax 5 medium plug and I'm about to swap to an O.S 8 plug hoping for better quality. I like to think that I'm pretty clued up on the tuning side of things. What plug would you recommend for this engine? Thanks
The os 8 or 7 are great plugs but keep in mind they are short reach! If you need standard aka long reach plug get a OS LC4 or lc3. Just make sure you know what plug you are putting in. Some people say it makes no difference. In that case the manufacturer would tell you to put any plug in it and hope for the best.
Thanks for showing that just because your glow plug glows red when you connect the glow igniter, doesn't necessarily mean its still good. I pulled my hair out due to this one for a while. I think another one that can be misleading is the "oh the piston and sleeve still has pinch. Therefore its still good.". I have had engines that run and idle great up until past ~210F degrees. Then the engine will die out. I get the feeling that this can be due to the fact that the engine was not broken in properly and the piston expanded too much when the sleeve was still too cold (i.e. engine was less than ~210F when breaking in. Or possibly for another). That being said, in this case the pinch can seem ok when you check it and your still irritated trying to find the reason why the damn thing just wont work properly. I love these type of videos man. Its rare to find a nitro engine video with good solid specific information. Maybe you can consider doing one about engine temps? (i.e. when breaking in, when tunning, where to temp the engine during break in?). Keep up the good work and cheers!!!
It definitely can drive people crazy if they're not used to it and and usually when the sleeve is worn out the engine will run as long as it's cool warm up to operating temperature shut off and will not restart till it's cold again if it's extremely tight when it's called means the sleeves are still good we're very little Break in time usually with a new engineer when you're uncertain of it's good to preheat them and keep the cylinder had wrapped with foil and keep the temperatures over 200ﾟF during your break and heat cyclin the heat cycling you can follow the atom Drake method for that
A lot of people believe they are a Diesel because of the glow plug. But nope! Just a low compression ratio 2 stroke that reliant on a cataleptic reaction. Pretty cool how it works
Bug Got a question for you about the dynamite .19 Mach 2. I have a new one that has not been broke in yet. In your opinion how will it run on 30% nitro and 13% oil?
A lot of years behind the controller I guess experimentation all kinds of stuff really I'm not I know what all by any means but I know what works and what doesn't and what's true and what's not. There's a lot of things I don't know and I would like to learn them in time
How does the engine perform or sound like when detenation is happening? That great tip when you remove the igniter, the engine dies.I always thought the idle screw backed out! Lol. Great info. Thanks!
Hey their just a question I am kinda new to nitro tuning I’ve always ran it on factory tune but on my Kyosho usa 1 I’ve ran it a bit lean like way too lean only for like a little bit tho for around a quarter tank only but I was using some side winder 30% nitro 12% oil as long as it still has compression it should be fine right?
Well running to lean is damaging your engine as it is starting for fuel as well as starving for oil. Running over lean shortens the engine life drastically or it will engine up going bang. If you think you're to lean open the high speed needle give it more fuel and if it's still running good then you're lucky.
It all depends on the manufacturer what they want you to put in there but like I was mentioning for most off road Or ready to run type engines require a medium or hot or hot cold plugs really have no place on offer old engines unless you're on road racing they really don't make any sense other than giving you an extremely narrow tuning window However I did make a video explaining plug protrusion it's down a little bit in the videos if you want to have a look for a couple of minutes
Do you have any experience with the vx18 engines in some of the cheap hsp nitro cars? Cant seem to hold a tune worth a shit, one minute itll hold an idle for a minute and a half, do one pull, and then it wont idle for more than 10-15 seconds. Also it dies almost every single time it tries to shift up a gear, thinking anout just swapping it out for an OS 18 tz
Yeah yes actually they are a very easy good tuning engine I've run several of them but they need the correct plug OS number 7 Make sure you have no fuel or exhaust system leaks
@@thebug4046 ok ill try a new plug and check on the exhaust, ill look for some factory needle settings too, manual doesnt have any. Using a body clip as an idle gauge lol, about .8mm, love your videos btw! Watch them while on the treadmill, have a great voice!
@@That_Puppet No problem buddy hopefully all goes well and check your fuel tank seal as well as your fuel lines and make sure your exhaust pressure tap is not plugged because if it is you will receive no fuel pressure and your factory settings will be flush on the high speed flush on the low speed and idle gap at 1 mm
@@thebug4046 great call on the plug! Car came with some no name plug in it and the coil is wavy almost to the point of touching the body of the plug, and its snow white, not silvery or gray. Guess i ran it a bit lean and wrecked the plug, piston looks fine and gets good compression, and fuel pressure was never an issue. Ill try the os#7 plug soon as i get it, thank you thank you thank you!
I live in Mexico and its really hard to get parts. Can I use a N3 glow plug with 20% nitro on a traxxas t maxx 2.5 im currently using N4 but I can only get o hold of N3
They are actually to short the Traxxas engines require a OS LC3 plug. But if you can't get them run whatever plug you can get hot plugs are what they come with from factory. And it will be absolutely fine on 20 or 30% nitro
@@thebug4046 yes you are right i noticed the plugs i have now the N3 are a bit shorter than the factory or the prvious N4 plug i was using so there will be no issue using a hotter plug??
@@kevinrueda9838 the factory plug is a hot plug. Keep in mind plug temperature dose not dictate engine temperature. It will be more efficient with richer tuning less sensitive. Most basher engine engines run a hotter plugs. Some engine come factory with a ultra hot plug. The only time you want cold plugs is for on road engines where they are basically at wide open all the time and have a very small tuning window
can you do a vid on compression, checking the piston/sleeve, how close to tdc the piston is related to when a pinch is needed, when compression is on the lower side and when best to repinch.
Checking compression on these engines will always be different since these engines all have different exhaust port height witch will effect the reading because of trapped air space is different between engines. Usually when the engine Starts to shut off when it's hot and only restart after it cools off is the point when you pinch the piston and sleeve or replace it depending on how warn the pin bores are. If it starts good runs good and doesn't shut off when hot don't worry about it. Some engines will run with no pinch at all since it's still has good piston seal and compression. My pro 15 for example has zero pinch left but still has good compression. And runs good. Check out my rebuild videos I show and explain how all that works.
@@thebug4046 ya ive seen some of them they are great. thanks for the uploads they have helped a lot. nobody talks about this stuff or does videos. cheers lets have a few crispy molson ices and work on engines. id like to see more detailed breakdowns like this on the chainsaw engines!
@@sn47som Yeah that's the thing I've noticed with a lot of channels people either have no clue what they are talking about or don't touch on the real subjects like what I talk about. And saw stuff? Well do I have a treat for you! I have a blown up partner 400 in need of a top end and I will do a tear down and rebuild video on that for you guys 🍻
The problem with the motor shutting off once the igniter is off I've actually bad this problem, the difference is that it seemed to be the crank bearing tried new glow plugs and all that stuff but no results.
Hello If my Savage X 4.6 come with r5 glow plug, and I run it at under 0 degrees Celsius, what type of glow plug I need ? And at my Traxxas Revo 3.3, I find just 3232x glow plug. Can I ride with this regardless of the outside temperature? Thx
The R5 was a terrible choice plug for that engine it was too cold for it made the tuning terrible as well. Run a OS #7 it will tune and perform much better! And for the 3.3 OS LC3 is most common.. and yes you don't change plugs for outside temperature it doesn't work that way. Run the same plugs year round. As explained in the video they don't dictate engine temperature directly.
Nope. Just a 2 stroke engine that uses a catalytic reaction between platinum and methanol. To run vs using spark. They are only around 8:1 compression ratio. About the same as a gas weed eater. A lot of people think they are a Diesel because they have a glow plug but the glow plug in these is very different from what you find in a Diesel truck. Rc glow plugs react and stay lit the hole time the engine runs. In a Diesel they are only to warm the air in the cylinders to help it start. That being said there is RC Diesel engines that only use high compression to start and run but they also use a different fuel mixture and the construction is different all tho they are still a 2 stroke. I have video explaining it
Great video thank you. Do you know if these glow plugs share the same thread? IE they are interchangeable at least in the sense that they can be screwed into the same hole/
Yes they are the same thread and can be swapped between engines just note the length because some engines will take a long reach OS LC3 or LC4 some will take a short reach plug OS #6 #7 #8 plug. The Truro plug is only for use in turbo plug engine as it is a completely different design. Much bigger then the standard plugs i just mentioned. Hopefully that helps 🍻
@@thebug4046 It does thank you! I am using a plug for a different purpose than rc and was hoping they were interchangeable. You wouldnt happen to know the thread pitch would you? :)
@@DylanEdmiston no worries! What are you working on? And unfortunately I'm not sure what the thread pitch is. If you are on Facebook you can pop into the Nitro RC enthusiasts group im an admin in their
@@thebug4046 so I have been out of the nitro world for forever and I’m back in now. I have been running it on 33% Traxxas fuel and it runs good but on tank 4 of the break in process I went thru two glow plugs. And I ran out so don’t have anymore atm. But honestly I’ve been moving the high speed needle literally toward the rich direction the whole time since I started. Do you have any recommendations?
@@Cuervo0 ditch the 33% it's not good fuel got to much oil 16 to 20% oil way.... to much dye and the 3% extra isn't doing much. It's basically heli fuel. Go with a 30/9 blend fuel it will blow the doors off the 33% and the more oil you add the leaner it's gunna run as the oil takes up fuel volume and changes your AFR %%% the 30/9 blend will not where the engine out any faster like they say. However you will have a much bigger tuning window cooler temperatures and much better performance. Also switch to a OS LC4 Glow plug and it will be 100% better! I promise! And watch the Adam drake method for brake in will help lots
hi my rc car run nice but to day not start got compresin and fuel to and new pug i think the orange thing what keeps the pug light up what the glow pug threads in to new to this what do you thinks it is thanks jay
The glow plug igniter? If the plug doesn't light up it won't start. The igniter im using is a Sonic tronics 2.5 glow igniter best you can get. Available on eBay order with the charger
Haha Yeah that was one reason but the other thing is kept getting brought up over and over and over again and I got sick and tired of answering the same question in the comments
Sounds like your tired of ruining with the hobby with idiots, or ignorant people, defined: you don't know the truth, I don't mean your stupid some just believe whatever their told without research. There is science to everything...gee, sounds familiar in our political system, but let's not go there, Just the fact Mam, just the facts... Anyway I just started with these engines and with a background in thermodynamics what you say make sense. Instead of looking at it as a nitro engine I now look at it differently, if I know the science then my troubleshooting skills just elevated. Just the same if I research the life and habits of a trout I catch more trout. I'm glad I ran into you instead of the guy at the field who knows everything, but doesn't. I've worked with plenty of them and end up walking away and do what do best...fly. I love to help, but when you know the science and try to help and they brush you aside like they think I'm a "smarty pants, " it get frustrating because I really want to see them advance, I'd don't like seeing a awesome jet, crash unnecessarily. I have a degree in aeronautics and worked on every type of military, some cavilian, aircraft. Except hellacopters for years. I'm not bragging on myself I'm giving you information so you can decide to believe me or not. I've flown RC planes for years, electric. I found an old Freedom 20 float plane, cheap so I brought it to restore to original condition. It's propelled by an engine, a Taiwan pro 25 whatever that means. With no experience in SMEUIS engines, (a small engines with a unique ignition system) otherwise known as a glow, nitro, or diesel, engine...It's frecken 4am in the morning and I can't work in my shop because for some reason my wife is still asleep ! So I'm a grumpy old man right now.. This is great you just told me I have a bad plug. Because it runs great untill I pull off the ignition thingy it stops I put it back on real fast and it keeps going. After I rebuild it I did the unthinkable, like a ignorant engine rebuilder, I did it, I used the same old plug. We all can be idiots at one time or another. I placed a plug order right away. Thanks to your grumpy video, which I don't mind, I'm more interested in your knowledge as long as it's right I don't care how you deliver the info. thanks again I look forward to your next video.
Hey man no worries and I'm not grumpy about it I just have a odd ball sense of humor. And a different way of saying stuff. Yeah I don't like stupidity as I run into on a daily basis I think we all do. Haha I just like to crush the BS people have made up over the years that scares people away from the hobby or make it sound so exotic when it's not. The amount of nonsense people have made up over the years is unreal! Like saying you can't switch back to 20% if you run 30% or it will blow up NOT TRUE AT ALL!! lol or people that think just because it has a glow plug it's a Diesel and it's not. I get the point across and people usually catch on and leave a comment like oh I get it! Thank you for clearing that up now I'm on point! I don't know everything I will be the first to admit that but I know what's true and what's not.
Hey Bug, do turbo plugs have wider threads? Just picked up a Siri .23 and a rb.23 and their threads are definitely wider, a standard plug will not fit. Been in the hobby 17 years and I’m just realizing that they must be different? lol Anyways,just wanted your expertise on the subject.
Yes Turbo plugs are completely different they fit like no other plug you need the correct plug with the correct taper for your engines as they are different!
THANK YOU! That's all I needed to know. New to r/c 2 strokes, don't know crap about glow plugs.... I was baffled on "how the fudge does one's engine continue to run without ignition? The chemical reaction explanation instantly cleared it up 😮
No worries buds! Glad it helped ya! And here's a wired fact. There is no such thing as a nitro engine! 🤨 I have video explaining that to a little farther down in my videos. Keep on burning nitro! And thanks for watchin! 🍻🤘🏻💯
Lol that's why I called it an "rc 2 stroke".... I was a small engine mechanic for a few years, but we're talking about fuel/oil with sparks and Reed valves.... so no continuous ignition source had me effed up.
That's where the chemical reaction was a huge ahhhh haaaa moment and the door has opened
@@jacobyuenger2884 Yup that's all they are just a little 2 stroke engine that runs on a catalytic reaction. a lot of people think they are a diesel because they use a glow plug but they are not. Diesel RC engines are a real thing but sadly nobody makes them anymore mostly only for airplane use I actually have some video of that as well I have a few left over from the ex Soviet Union of Russia
I appreciate this, man.
Thank you for all you do.
No worries!! Thanks for watchin! 🍻
Thanks for some really good information I just get started in nitro engine and I really love it I've been asking a lot of questions about the fuel with no real answer so thanks much I would love to see some more videos about the engine.
It's the truth here man. Real talk unlikely a lot of other people that just talk out their ass about stuff they know nothing about. Unfortunately. And witch engine are you referring to? 🍻👊🏻
Hey man, this is an excellent breakdown on rc glow plugs.
Glad it helped ya
So glad I subscribed to this channel. Your killin it brother really. Give this man a LIKE! because no one takes the time to explain like this man does I appreciate your time. Its in the 30s and I've been burning nitro in my t maxx and I did run into a few issues with tuning but got it good enough to burn a few tanks an have some fun.. but this video made sense thankyou Really. Cheers 🍻
Hey Matt thank you very much for your kind words I really appreciate it really makes me want to continue making videos!! KBN!! 🍻🍻🍻
Awesome video. Man. Glad you broke this down.
Your very welcome!
Hope you get better soon bro and thanks for the explaining of how glow bois work, much appreciated always have mint knowledge to share.
Thanks man. I hope it doesn't get worse haha and you're very welcome
@@thebug4046 yeah feels dude- I hope it doesn’t get worse either! We need the bug baby!
great info man I always learn something from your vids
Very welcome buddy
Good explanation of the glow plugs!
Another oneee 👊🏽 love these videoss!!
Thanks man 🍻🍻
great video man! The idea bar plug info was interesting, I've never seen one of those in person.
Thanks man! And unless you're into airplane engines you don't see them much
Very good explaining of glow plugs. Depending of some brands, hot and cold plug numbers could also be opposite. Like you said, use glow plugs that manufacturers are recommending. Hope you get well soon.
I try to tell people it's like when you put the wrong spark plugs in your car sure you can put in any old spark plug and it will get down the street but it's not correct and it can cause other issues. But for some reason or another people don't seem to think about that. Lol and thanks man I hope it doesn't get any worse 😅 🍻
Thanks for video. I learned a lot.
Welcome!
Whoo thanks for another video!
Welcome!
Cheers bro 👌 iam now a bit more clued in on glowplugs 😁
Awesome video! I was just wondering about glow plugs since my rb mods 3.7 is a turbo n wanted to know the differences!! Thanks for the videos amazing help!!
Wish u a quick recovery on the fukin covid !!!!!!! Nitro on !!!!
You are very welcome and yeah it kinda sucks I can tell you that much not enjoying miss whatsoever can't go anywhere either! F**k covid
@@thebug4046 i know my girlfriend has it too and we been away for 3 weeks man!! Smh
@@86BIGDRE86 that really sucks! Hope for a speedy recovery!! To you both!
@@thebug4046 same to you!! N thanks
Get well soon, great plug detail.
Thanks bud!
I have to agree. Just because glow plug lit red doesn't mean its good that's if its bright red though. That is the first thing I do I check glow plug. It makes it little easier to pin point other problems. Good job explaining it.
Thanks man basically no one actually took any time to explain it and I keep getting the same questions again and again lol
Finally someone else who actually knows his sh*t and i love it!
i showed this vid to a buddy of mine who raced both nitro and gasoline cars in the older days like.. 10-15 years ago.. but he kept saying that i need to change my glow plug depending on the temp outside and retune the engine.. yes retune the carb due to the air density difference between winter and summer seasons but otherwise i never heard of changing the plug every temp/season change..
Maybe in some strange world people believe that actually works but it doesn't that's like changing the spark plugs for the weather conditions in the car that you drive to work everyday it's just absolutely stupid keep the same plug that's recommended you're round you won't gain anything by changing it
I totally agree... Whatever plug works the best in your engine, stick with it.
@@davelowets another thing that someone brought to my attention one day and which i tested myself is that hot plugs tend to burn brighter then cold plugs.
you may or may not notice it when you pull the plug out of the head and check it with the igniter.. but you gotta consider that the igniter actually boosts the plug brightness to get the engine going.. once you pull the igniter off and the engine runs, the plug burns less bright but just enough to burn fuel.
But it is a given that cold plugs need to run leaner settings (less bright so not able to burn a bunch of fuel) and hot plugs (because they burn brighter) need to run richer.
@@VintageCR The difference between hot and cold plugs is not to be able to run different air/fuel ratios... The difference between heat ranges of the plugs is for changing ignition timing. A hotter plug means more timing btdc, and a colder plug is less.
Bug I’ve looked everywhere on the internet to see what plug I should have in my 3.3 Traxxas and you are the best. I looked at a chart and kinda went nuts for the last few days. Guy at the hobby shop told me run a os#8 it’ll be perfect. And I’m having to leave my igniter on to run my tmaxx. So I am going tomorrow to buy an lc3 like you said in your video. Thank you so much
No worries! All Traxxas engines will take an LC3 or lc4 plug. The only they suggest OS 8 is because they have absolutely no idea what they are doing and selling people the wrong plugs. Sure it works but it reduces the compression ratio in standard reach plug engines and will move the flame front higher into the combustion area as well as effect the timing. Some engines are less sensitive to it than others but it definitely pays to have the correct plug for your engine. Sure lawnmower spark plugs will work in your 350 chevy but it's not correct. I don't understand why people have such a difficult time understanding that. 💯
Idk either lol. As someone who has spent a lot of time working on cars and trucks more specifically the older Chevys the plug does matter. So that being said I’m trying to tune my 3.3 for mostly off road and dirt tracks. What plug do you recommend I use?
@@Freakshows_house the os lc3 is a great basher plug easy tuning and is less sensitive to running richer. And longer idle times They don't make it run any hotter if that's what your Worried about. Same plug i run in all my Traxxas engines. They are a little more money but absolutely worth it. The Traxxas plugs are cheaply made poor quality and don't last or offer good tuning stability. The lc3 also works great if you burn 0% nitro like i do.
@@thebug4046 how the hell do you run 0% nitro? Isn’t that the fuel used to make the plug continuously glow? Do you have a video explaining this I have to know. And does it increase performance and lifespan?
@@Freakshows_house no such thing as a nitro engine. They don't require nitromethane to run. They are glow engines what run on glow fuel witch is just two ingredients methanol and oil being klotz super techniplate. Nitro is added for easier tuning and performance but if you adjust your compression ratio you can make excellent power if you know what you are doing. I have video explaining and showing engines running with 0% nitro. My airplane engines get an 80/20 mix my cars and trucks get 90/10 mix. It's usually what I run whatever the hobby shop is out of fuel or they don't have the fuel i want witch is sidewinder pro blend 30% nitro 10% oil usually. The methanol is what holds the catalytic reaction with the platinum on the coil of the glow plug. Hence why when you remove the igniter and the engine shuts of is because it can't hold the catalytic reaction by itself anymore.
This has been really helpfull thankyou
No worries! 👊🏻
thank You for this...
No worries
I didn’t k ow Rickey from trailer park boys was into making RC videos! Lol love it bro your a beauty
Hahaha thanks for watchin!
Thanks for the 🎥.
No problem!
Great video got a cheat sheet for what plugs go in which engine seems like you know them all pretty well
It usually if I'm uncertain of the engine I will take the cylinder head off and do a protrusion test to make sure
Great videos, your fortunate covid is mild for you. You can’t say it’s not as bad as it’s made out to be. Other people are not so lucky 😢 different for each person. Hope you get better 👍🏻
Yes very true! But it isn't seeming to get any worse just a little one I guess haha
Bug I love this video!!! Awesome information was wondering what plugs do you recommend or bee better to run in the 2.5 2.5r and the 3.3 ? I know the manual says a long med I guess I’m asking what others are long med because some don’t say if they are long or short ?
OS LC3 plug is the best for Traxxas engines
The glow plugs for the gas engines are interesting. I still think the small Diesel engine that has the T-handle on the top (to change the rpm/compression ratio) is really neat. Just thinking about how it works/envisioning what’s happening in the combustion chamber as you screw it in/out is really neat. LoL fun too. I assume they were designed for constant Rpm ran air planes (no throttle servo). That correct? Thx for the vid Bug 🔥💪🏻
Your absolutely correct! They are ment to be run full speed in control line airplanes
They also make rc diesel engines over here in uk. P.A.W engines are available in rc versions. Not run one though although there 2.49 contest diesel from the 80s absolutely rips on a 7x4! Nice video on glow plug facts nice that you cleared up the know nothings! Bug 404 hope you feel better soon. F!#@ing covid!
@@adrianstreet8330 ah yes. PAW engines are very nice i would love to have one some day! And yeah man covid sucks !
This video answered a lot of questions I had in regards to the science of it all, thanks. I have an HPI 4.6 on 25% fuel and I'm currently using Fastrax 5 medium plug and I'm about to swap to an O.S 8 plug hoping for better quality. I like to think that I'm pretty clued up on the tuning side of things. What plug would you recommend for this engine? Thanks
The os 8 or 7 are great plugs but keep in mind they are short reach! If you need standard aka long reach plug get a OS LC4 or lc3. Just make sure you know what plug you are putting in. Some people say it makes no difference. In that case the manufacturer would tell you to put any plug in it and hope for the best.
Thanks for showing that just because your glow plug glows red when you connect the glow igniter, doesn't necessarily mean its still good. I pulled my hair out due to this one for a while. I think another one that can be misleading is the "oh the piston and sleeve still has pinch. Therefore its still good.". I have had engines that run and idle great up until past ~210F degrees. Then the engine will die out. I get the feeling that this can be due to the fact that the engine was not broken in properly and the piston expanded too much when the sleeve was still too cold (i.e. engine was less than ~210F when breaking in. Or possibly for another). That being said, in this case the pinch can seem ok when you check it and your still irritated trying to find the reason why the damn thing just wont work properly. I love these type of videos man. Its rare to find a nitro engine video with good solid specific information. Maybe you can consider doing one about engine temps? (i.e. when breaking in, when tunning, where to temp the engine during break in?). Keep up the good work and cheers!!!
It definitely can drive people crazy if they're not used to it and and usually when the sleeve is worn out the engine will run as long as it's cool warm up to operating temperature shut off and will not restart till it's cold again if it's extremely tight when it's called means the sleeves are still good we're very little Break in time usually with a new engineer when you're uncertain of it's good to preheat them and keep the cylinder had wrapped with foil and keep the temperatures over 200ﾟF during your break and heat cyclin the heat cycling you can follow the atom Drake method for that
Great info! Too bad your videos weren’t around 20yrs ago when I got my first t-maxx lol
Haha no kidding
Thank you ...
Welcome!
Very cool, I didn't know about the chemical reaction. I thought they were high compression engines "like a diesel"
A lot of people believe they are a Diesel because of the glow plug. But nope! Just a low compression ratio 2 stroke that reliant on a cataleptic reaction. Pretty cool how it works
Bug
Got a question for you about the dynamite .19 Mach 2. I have a new one that has not been broke in yet. In your opinion how will it run on 30% nitro and 13% oil?
Should be just fine
Damn it man,why you so good at this shit?😁
A lot of years behind the controller I guess experimentation all kinds of stuff really I'm not I know what all by any means but I know what works and what doesn't and what's true and what's not. There's a lot of things I don't know and I would like to learn them in time
Damn bro, hope you get over that covid, can you tell me where you got that grid pattern table top!
Thanks man and it's not overly as bad as I was expecting it to be but still kind of sucks and go on eBay or Amazon and look up an A2 or A1 cutting mat
How does the engine perform or sound like when detenation is happening? That great tip when you remove the igniter, the engine dies.I always thought the idle screw backed out! Lol. Great info. Thanks!
kind of sounds a growl on a paint can
The engine sounds very rough almost like there's gravel inside
Hey their just a question I am kinda new to nitro tuning I’ve always ran it on factory tune but on my Kyosho usa 1 I’ve ran it a bit lean like way too lean only for like a little bit tho for around a quarter tank only but I was using some side winder 30% nitro 12% oil as long as it still has compression it should be fine right?
Well running to lean is damaging your engine as it is starting for fuel as well as starving for oil. Running over lean shortens the engine life drastically or it will engine up going bang. If you think you're to lean open the high speed needle give it more fuel and if it's still running good then you're lucky.
@@thebug4046 thanks I think it’s still good
Sorry to hear you got the rona. I hope you feel better and KBN! ;)
Thanks buds it sucks but not to bad as far hopefully it stays that way haha KBN!! 🍻🍻
@@thebug4046 but your body also developes antibodies when you get covid
@@hpiedsavageed7608 this is very true!
Very cool vid. So is it safe to say that mostly big blocks run shorter plug, maybe medium/cold side and small block run short plug?
Get better soon
It all depends on the manufacturer what they want you to put in there but like I was mentioning for most off road Or ready to run type engines require a medium or hot or hot cold plugs really have no place on offer old engines unless you're on road racing they really don't make any sense other than giving you an extremely narrow tuning window However I did make a video explaining plug protrusion it's down a little bit in the videos if you want to have a look for a couple of minutes
Always appreciate your knowledge-Rock on Bug, just about to pop a Terrapin hopsecutioner. 7.5% kick in the head 🤪
Hell yeah buddy! 🍻🍻
Do you have any experience with the vx18 engines in some of the cheap hsp nitro cars? Cant seem to hold a tune worth a shit, one minute itll hold an idle for a minute and a half, do one pull, and then it wont idle for more than 10-15 seconds. Also it dies almost every single time it tries to shift up a gear, thinking anout just swapping it out for an OS 18 tz
Yeah yes actually they are a very easy good tuning engine I've run several of them but they need the correct plug OS number 7 Make sure you have no fuel or exhaust system leaks
@@thebug4046 ok ill try a new plug and check on the exhaust, ill look for some factory needle settings too, manual doesnt have any. Using a body clip as an idle gauge lol, about .8mm, love your videos btw! Watch them while on the treadmill, have a great voice!
@@That_Puppet No problem buddy hopefully all goes well and check your fuel tank seal as well as your fuel lines and make sure your exhaust pressure tap is not plugged because if it is you will receive no fuel pressure and your factory settings will be flush on the high speed flush on the low speed and idle gap at 1 mm
@@thebug4046 great call on the plug! Car came with some no name plug in it and the coil is wavy almost to the point of touching the body of the plug, and its snow white, not silvery or gray. Guess i ran it a bit lean and wrecked the plug, piston looks fine and gets good compression, and fuel pressure was never an issue. Ill try the os#7 plug soon as i get it, thank you thank you thank you!
Keep away from those HSP plugs, they are a real crap. Two of them melted into my engine. Never had any issue with OS plugs.
I live in Mexico and its really hard to get parts. Can I use a N3 glow plug with 20% nitro on a traxxas t maxx 2.5 im currently using N4 but I can only get o hold of N3
They are actually to short the Traxxas engines require a OS LC3 plug. But if you can't get them run whatever plug you can get hot plugs are what they come with from factory. And it will be absolutely fine on 20 or 30% nitro
@@thebug4046 yes you are right i noticed the plugs i have now the N3 are a bit shorter than the factory or the prvious N4 plug i was using so there will be no issue using a hotter plug??
@@kevinrueda9838 the factory plug is a hot plug. Keep in mind plug temperature dose not dictate engine temperature. It will be more efficient with richer tuning less sensitive. Most basher engine engines run a hotter plugs. Some engine come factory with a ultra hot plug. The only time you want cold plugs is for on road engines where they are basically at wide open all the time and have a very small tuning window
Hey Bug! I fucked up my OS MAX 30VG, the backplate! What glowplug do you recomend? Thanks for the videos!
OS LC4 I believe is what they take but I could be wrong
can you do a vid on compression, checking the piston/sleeve, how close to tdc the piston is related to when a pinch is needed, when compression is on the lower side and when best to repinch.
Checking compression on these engines will always be different since these engines all have different exhaust port height witch will effect the reading because of trapped air space is different between engines. Usually when the engine Starts to shut off when it's hot and only restart after it cools off is the point when you pinch the piston and sleeve or replace it depending on how warn the pin bores are. If it starts good runs good and doesn't shut off when hot don't worry about it. Some engines will run with no pinch at all since it's still has good piston seal and compression. My pro 15 for example has zero pinch left but still has good compression. And runs good. Check out my rebuild videos I show and explain how all that works.
@@thebug4046 ya ive seen some of them they are great. thanks for the uploads they have helped a lot. nobody talks about this stuff or does videos. cheers lets have a few crispy molson ices and work on engines. id like to see more detailed breakdowns like this on the chainsaw engines!
@@sn47som Yeah that's the thing I've noticed with a lot of channels people either have no clue what they are talking about or don't touch on the real subjects like what I talk about. And saw stuff? Well do I have a treat for you! I have a blown up partner 400 in need of a top end and I will do a tear down and rebuild video on that for you guys 🍻
@@thebug4046 wat do you think about this method ? th-cam.com/video/WAizS7iXaFM/w-d-xo.html
The problem with the motor shutting off once the igniter is off I've actually bad this problem, the difference is that it seemed to be the crank bearing tried new glow plugs and all that stuff but no results.
Rod stretch or a really bad bearings can take put plugs as well.
I actually have a hybrid glow engine, I just drive it around with the igniter on🙂
Interesting haha
Quick question what mounts did you use for your DYNAMITE Mach 2 .28 engine?
For what car/tuck ?
@@thebug4046 I'm putting one on my LOSI 8ight t
@@nitroluver4l591 just drop it in your replacing a big block with a big block
@@thebug4046 I am the dumbest person alive i used the wrong side🥴
@@nitroluver4l591 hahaha shit happens man.. just swap over everything from the old to the new engine should be mint! 👌🏻
Hello
If my Savage X 4.6 come with r5 glow plug, and I run it at under 0 degrees Celsius, what type of glow plug I need ?
And at my Traxxas Revo 3.3, I find just 3232x glow plug. Can I ride with this regardless of the outside temperature?
Thx
The R5 was a terrible choice plug for that engine it was too cold for it made the tuning terrible as well. Run a OS #7 it will tune and perform much better! And for the 3.3 OS LC3 is most common.. and yes you don't change plugs for outside temperature it doesn't work that way. Run the same plugs year round. As explained in the video they don't dictate engine temperature directly.
@@thebug4046 thank you
if I can't find the respective glow plug models in my country, what would be an alternative? preferably novarossi or O.S
Got a question : Do nitro engines kinda work like diesel or semi-diesel?
Nope. Just a 2 stroke engine that uses a catalytic reaction between platinum and methanol. To run vs using spark. They are only around 8:1 compression ratio. About the same as a gas weed eater. A lot of people think they are a Diesel because they have a glow plug but the glow plug in these is very different from what you find in a Diesel truck. Rc glow plugs react and stay lit the hole time the engine runs. In a Diesel they are only to warm the air in the cylinders to help it start. That being said there is RC Diesel engines that only use high compression to start and run but they also use a different fuel mixture and the construction is different all tho they are still a 2 stroke. I have video explaining it
what would be the difference between an B4 glow plug and an N4, cant seem to find it out anywhere. I have a nitro fw06.
To be honest I don't know i have never ran either of them i run OS plugs
@@thebug4046 okay, thanks for the help. I feel they must be very similar as they look identical. So I'll try an n4 once this one dies out
@@tryisie3061 i think the N4 is a short reach medium plug so the OS #8 Would be a direct replacement. I think the n4 is a cheap China plug
Great video thank you. Do you know if these glow plugs share the same thread? IE they are interchangeable at least in the sense that they can be screwed into the same hole/
Yes they are the same thread and can be swapped between engines just note the length because some engines will take a long reach OS LC3 or LC4 some will take a short reach plug OS #6 #7 #8 plug. The Truro plug is only for use in turbo plug engine as it is a completely different design. Much bigger then the standard plugs i just mentioned. Hopefully that helps 🍻
@@thebug4046 It does thank you! I am using a plug for a different purpose than rc and was hoping they were interchangeable. You wouldnt happen to know the thread pitch would you? :)
@@DylanEdmiston no worries! What are you working on? And unfortunately I'm not sure what the thread pitch is. If you are on Facebook you can pop into the Nitro RC enthusiasts group im an admin in their
@@thebug4046 they are a 1/4-32! I am designing an RC jet engine!
@@DylanEdmiston that's right! I couldn't remember. And that's really cool man im gunna pop in and sub ya!
IS there a Setup to have the glow plugs always on ??? wired ?
They stay lit the whole time the engine runs
@@thebug4046 I ment for redundacy and how much power go to the plugs ?
Can running the TRX 3.3 engine too rich wear out the glow plug as well?
Not really
@@thebug4046 so I have been out of the nitro world for forever and I’m back in now. I have been running it on 33% Traxxas fuel and it runs good but on tank 4 of the break in process I went thru two glow plugs. And I ran out so don’t have anymore atm. But honestly I’ve been moving the high speed needle literally toward the rich direction the whole time since I started. Do you have any recommendations?
@@Cuervo0 ditch the 33% it's not good fuel got to much oil 16 to 20% oil way.... to much dye and the 3% extra isn't doing much. It's basically heli fuel. Go with a 30/9 blend fuel it will blow the doors off the 33% and the more oil you add the leaner it's gunna run as the oil takes up fuel volume and changes your AFR %%% the 30/9 blend will not where the engine out any faster like they say. However you will have a much bigger tuning window cooler temperatures and much better performance. Also switch to a OS LC4 Glow plug and it will be 100% better! I promise! And watch the Adam drake method for brake in will help lots
@@thebug4046 thank you 🙏🏾 I appreciate you getting back to me!
@@Cuervo0 no worries
hi my rc car run nice but to day not start got compresin and fuel to and new pug i think the orange thing what keeps the pug light up what the glow pug threads in to new to this what do you thinks it is thanks jay
The glow plug igniter? If the plug doesn't light up it won't start. The igniter im using is a Sonic tronics 2.5 glow igniter best you can get. Available on eBay order with the charger
I want to buy one spak plugs.
EBay
Ford 7.3 !
It was the only thing I could think of 🤣
I want to shopping this
EBay
Good evening sir
Go on eBay buy glow plugs
get better beer helps i had it too.
🤣🤣
What can I do
EBay
Rhodium
I blew my glow plugs with 3.7V Li-ion battery (750mAh) engine starter, why's that ?
Glow plug are only designed for 1.5VDC MAX!! Use a normal Glow igniter!
@@thebug4046 omg, thanks. My bad
@@jn8218 hahaha shit happens!
Lol I know why this video was made
Haha Yeah that was one reason but the other thing is kept getting brought up over and over and over again and I got sick and tired of answering the same question in the comments
drink swill
Sounds like your tired of ruining with the hobby with idiots, or ignorant people, defined: you don't know the truth, I don't mean your stupid some just believe whatever their told without research. There is science to everything...gee, sounds familiar in our political system, but let's not go there, Just the fact Mam, just the facts... Anyway I just started with these engines and with a background in thermodynamics what you say make sense. Instead of looking at it as a nitro engine I now look at it differently, if I know the science then my troubleshooting skills just elevated. Just the same if I research the life and habits of a trout I catch more trout. I'm glad I ran into you instead of the guy at the field who knows everything, but doesn't. I've worked with plenty of them and end up walking away and do what do best...fly. I love to help, but when you know the science and try to help and they brush you aside like they think I'm a "smarty pants, " it get frustrating because I really want to see them advance, I'd don't like seeing a awesome jet, crash unnecessarily. I have a degree in aeronautics and worked on every type of military, some cavilian, aircraft. Except hellacopters for years. I'm not bragging on myself I'm giving you information so you can decide to believe me or not. I've flown RC planes for years, electric. I found an old Freedom 20 float plane, cheap so I brought it to restore to original condition. It's propelled by an engine, a Taiwan pro 25 whatever that means. With no experience in SMEUIS engines, (a small engines with a unique ignition system) otherwise known as a glow, nitro, or diesel, engine...It's frecken 4am in the morning and I can't work in my shop because for some reason my wife is still asleep ! So I'm a grumpy old man right now.. This is great you just told me I have a bad plug. Because it runs great untill I pull off the ignition thingy it stops I put it back on real fast and it keeps going. After I rebuild it I did the unthinkable, like a ignorant engine rebuilder, I did it, I used the same old plug. We all can be idiots at one time or another. I placed a plug order right away. Thanks to your grumpy video, which I don't mind, I'm more interested in your knowledge as long as it's right I don't care how you deliver the info. thanks again I look forward to your next video.
Hey man no worries and I'm not grumpy about it I just have a odd ball sense of humor. And a different way of saying stuff. Yeah I don't like stupidity as I run into on a daily basis I think we all do. Haha I just like to crush the BS people have made up over the years that scares people away from the hobby or make it sound so exotic when it's not. The amount of nonsense people have made up over the years is unreal! Like saying you can't switch back to 20% if you run 30% or it will blow up NOT TRUE AT ALL!! lol or people that think just because it has a glow plug it's a Diesel and it's not. I get the point across and people usually catch on and leave a comment like oh I get it! Thank you for clearing that up now I'm on point! I don't know everything I will be the first to admit that but I know what's true and what's not.
Hey Bug, do turbo plugs have wider threads? Just picked up a Siri .23 and a rb.23 and their threads are definitely wider, a standard plug will not fit. Been in the hobby 17 years and I’m just realizing that they must be different? lol Anyways,just wanted your expertise on the subject.
Yes Turbo plugs are completely different they fit like no other plug you need the correct plug with the correct taper for your engines as they are different!