HOW TO FIND TOP DEAD CENTER ON THE COMPRESSION STROKE. (WITH A BALLOON) (2023)
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- เผยแพร่เมื่อ 14 ต.ค. 2024
- Automotive technician since 1991, I show an easy method for finding TOP DEAD CENTER ON THE COMPRESSION STROKE for #1 cylinder using a screw driver, hose from a compression tester and a BALLOON. Yeeeep a Balloon. its simple and can be done just by taking out the #1 spark plug. These methods work for all 4 stroke engines and will help you find that dreaded TDC on the compression stroke so you can line up your timing belt correctly. I also explain Camshaft Lobe position and why it needs to be off the lifters for compression to take place. KEEP IN MIND you DO NOT need to take the valve covers off to perform this task, I only have them off because I am changing the head gaskets on this vehicle..Another thing also, if your piston rings are bad (not sealing properly) or your valves are not seated and sealed tight you will have low compression and if it is extreme, it will not inflate the balloon. Keep your faith strong in Christ and never ever give up! Excuse me for calling the Crankshaft pulley bolt a Nut lol, I blame it on my A.D.D. lol
Nice! Never saw the balloon trick before, great video. I this whistle thing my old auto shop teacher made from an old compression tester fitting with a slot cut into it. You turn the engine and when it whistles, your on compression! The balloon idea is new to me though. Very cool.
I can watch 3 other videos totaling 45 minutes and still not have the answers I was looking for, or i watch your videos and have an answer in a matter of minutes, this video alone gave me the help I needed in under 7 minutes, thank you! Keep up your great work, your videos are helpful, and very much appreciated
This is really a good idea. I made my own variation on this. I broke out the ceramic center of an old spark plug, then shoved a piece of heater hose on it and screwed it into the spark plug hole. Worked like a charm! Thanks oldskool!
How'd you break out the center?
@@fidenciolucianoflores7814 I put the spark plug in my bench vise and just started breaking it with vise grips. Once you get it started it falls apart.
Good DIY TDC fix. I had a hard time finding the compression stroke by myself, I had to turn the engine until the rotor was looking at #1 sparkplug and the screwdriver was on the top of it's travel. Your balloon is another point and an excellent visual aid.. Thanks for taking the time to share..
Ya John Levy I used to do the same until I saw my kids playing with balloons one day and then it hit me the light bulb came on lol. Glad it helped God Bless.
Thank you such a great video even 8 years later!
I LIKE THIS DUDE HE MAKE SENSE IN EVERYTHING THT HE DOES... EZY!! HE NEEDS TO MAKE COMMERCIALS
your ballon trick is genius. I'm doing a leakdown test on my Harley and need to be TDC on the compression cycle... hence- u da man. Thank you for making this vid.
This is INGENIOUS! God BLESS You! This is a HUGE Help! I was having some problems with this today. Now You Have Made It A LOT Easier. Thank You.
nice video. genius way and easyway to find TDC. never thought about finding TDC this way. thanks for the tip
Thanks Slick Rick ya its pretty esay huh?
ATTN: Another trick is to just PLACE YOUR FINGER OVER THE SPARK PLUG HOLE/SPARK PLUG WELL and have someone turn the crankshaft and FEEL THE COMPRESSION W/ YOUR FINGER, THEN PUT THE SCREW DRIVER IN AND BRING IT TO TDC. Go get it, Put Jesus Christ first in your life, God Bless
You still have to stand before him one day. Dont let the humanistic views fool ya brother
***** Faith is an ideology, and can be classified as "not real", unfortunately the bible isnt the only record of a man named jesus christ, see the romans documented him.....including the famous trail of jesus in rome, where he was sentenced to execution......if you trust the romans accounts of wars, astrology, geology, math, and accounts that the roman government said happened in general, then theres no reason to say they're official government records would be a lie about that 1 matter lol. Especially since they didnt believe in a single god, neither did the other people or places that documented him outside of the bible, nor did anyone like what he had to say, so giving this person credit for existing, would mean him being there was not beneficial to any civilizations he traveled to. Would you take the time to write a full on hate blog about a made up person ? Hes classified as a heretic, not the easter bunny.
whether or not he was the son of god is the question. No historian on this earth would ever say jesus christ did not exist, the bible itself also talks a lot about wars and geology.......spoiler alert.......those things happened and existed also by the account of the civilizations involved.....outside of the bible.....
I love 2015 lol, goodbye history, farming, and the passing of time tested information, hello computers and assumptions based on assumptions, keep the ball rolling is the name of the game.
You better be absolutely right because when you reach your 11th hour and you still carry that distorted view about God, you will regret it when you stand before him. Dont letem foolya God Bless.
oldskool funk That's the easier way if you have someone helping
How amazingly simple !!! I think I'm going to try this on my 350 small block Chevy. Thanks for the tip.
I have watched all your videos buddy and I must say they are all fantastic. Clever tricks with minimum fuss or tools. You have saved me a small fortune in time and money. Keep up the great work man. If I was you I would consider compiling & selling a DVD series. I certainly would buy it. Could well afford to because of the dosh you've saved me already. Best automobile tips on the web by far.
Dude your a damn genius! I know you gotta be a master mechanic. If not enroll soon; you might be able to show them a thing or 2. excellent job on the video. Simple explanation and reassurance that the watcher was able to understand. thank you
Thanks my guy. I been over thinking all day and never got it done. Now I know she's gonna go back together tomorrow.
Good video,man! Ilike it. Much better than all complex scientific and technic stuf i used to see. greetings from France.
I got it! Thank You again
Your videos are always helpful
U the man
Excellent instruction to find TDC. Thank you very much.
Thank you. This video helped me fix my grandmothers Mazda protégé. I'm in school studying car mechanics. Please, continue helping people.
God bless
Right on DjAslide rix, Stay on the study and dont ever give up. God less you and the family.
😂 10 years later I found this video thank you so much for the info
Right on Thank you. Keep the DIY creativity going God Bless.
No BS that's the way I like it sir good looking out
Nice one bud. I don’t know why anyone would give you a thumbs down. It’s good info. Thanks.
Best video to learn TDC on TH-cam.
Don’t over think it! Perfectly said
I've learned more from you than I have my entire life and I buy and sell cars my brother. And you've kept my attention on Jesus the most!! Haha
Thank You, I used a large rubber gas line. It was a little big so I had to twist it into the spark plug hole. I put the other end to my lip an could feel the air blowing on my lip. Thanks again Bob
You a real life saver and an inspiration big homie. Most of these corny youtubers over explain what to do and use tools i dont have access to. Anyway, im a fan of most of your videos. Keep doing your thing man! *thumbs up*
very very cool idea...never even thought about doing this
Awesome video man, very helpful. Thanks for spending the time.
Great video my man. Definitely giving you like on this one. 👍🏼
Great job
where do you get the fitting that goes in spark plug hole? and what is that called? Thanks for the video .
he got it done,I feel like more confident about the way to do it so yea keep the videos going for the homies
Thank you very much
that balloon trick is brilliant! thanks for the vid.
The balloon trick very cool
Hi.....I like the video. it's creative for the guy learning auto mechanics on a budget!
Thanks brock4238 its all about helping others keep your head up and study hard.
You're an awesome person......thanks a lot for your explanation that makes things easy for mi cause I'm doing the same on a 2005 deville ,I'm changing timing chain and I did it wrong the first time but now after watching your video I know this f(/$:$:& ng nightmare North Star it's gonna start
I watch all ur vids.i love em.god bless.keep it moveing.its so help full.thx
Thank you Oldskool, I love the balloon trick.
I love your tool what a great idea :)
Wassup Oldskool Funk. A I like you style on the info vids so I'm gonna throw you this little gem from back in my service days about four stroke engines...Intake, compression, combustion, exhaust...forget all that! Too many letters, just remember this...Suck, squeeze, bang, blow. There it is. Peace.
Amazing 👏
THANKS!!!!!!!!!! God Bless OLDSKOOL FUNK. NICE TIP MAN.
Thanks a lot man i was confuses about tdc but you have explained it well ill do a finger glove as i dont have baloon and ill check mark on crank pulley and timing chain cover then watch cams should face each other on first cylinder
But the most difficult will be loose and tightening crank shaft pulley without turning the crank pulley from tdc for loosining May be air gun but for tightening i dont know how itll be done hope i got some help 😁
Nobody explained it better than you... easy and simple! Just one question, do you have time the engine first or before?
This is a cool idea. Thanks!
I love your videos man!!! They have helped me a lot. God Bless.
Thank you Derek, just to hear that is very rewarding to me and keeps me going to make more. I got more vidz on the way, stay tuned brother and keep your head up high God Bless.
So compression stroke is TDC all the time or does it make a difference on exhaust or intake... Im confused.
I rebuilt my 6.0 engine and I'm having a crank no start and Im not sure if the timing is correct as far as if I had tightened my rockers on compression stroke. Though my piston was at TDC I don't know if it was on the compression stroke.... Just need to verify because I'm nit sure if the exhaust or intake valves are supposed to be open or closed on compression stroke... Please help.
Perfect explanation great job
very nice. thank you
keep running into your vids on here man, good info, subbing
Awesome video bro 💪🏼 Thank you.
Glad I watched this video , I was about to do the job all wrong .
Thanks Terrell.
Great idea. Thanks for posting.
If the lobes in all camshafts are not touching the lifters, that is also an indicator of the compression cycle, no?
Thanks mr T I needed the info to fix my ateam van.
Won’t turning the crankshaft counterclockwise damage for adjustments damage the engine?
New sub mate, awesome trick, thank you. Little more confident now.
Thanks Robert, Go get it and tackle it with confidence!
Meat n Potatoes.... not a slim Jim n chips. Respect.
very cool.
awesome tip.
A1 video! Thanks for sharing. What type screw was use for spark plug hole
I have a hose with a fitting from a leak down tester but the hose is bent slightly and this throws is out of alignment when I try to screw it into the deep set plug hole. Where can I easily find a hose with the 14mm x 1.25mm fitting?
Also, my spark plugs go in at an angle so I am afraid to use the screwdriver method for fear of jamming the piston and damaging the spark plug hole threads or scraping carbon pieces off it that could get in the rings and cylinder wall.
Valve covers are on since I am only wanting to use a thread chaser before installing new plugs and want to be sure the chaser doesn't hit an open valve or the piston.
Great demonstration though and I will use the balloon method if I can get something with a spark plug thread on it with hose attached.
Thanks!
Thank you Gee.
Thanks!
I LOVE THAT BALLON TRICK ?
Thank you
if you had over head value engine; what do you look for on the rocker arms to see that both the intake and the exhaust values are closed so that you know you're on compression stroke and not the exhaust ; I am going to try to make your tool as well what is the adapter size (threading) your using I know it might be different from vehicle to vehicle
Smart man here!
Thanks Alex, your welcome.
Yo you the best bro, I love it
Awesome vid!
That's a cool vid bro. Never thought of that. Been trying to come up with some way to assist myself without any help around to find TDC on my 91 Jeep Cherokee Laredo 4.0L. Was changing distributors and think I was off a tooth but now I know I am way off. Have the No.1 spark plug out but there is no notch on the crank balancer pulley so I wouldn't know exactly when TDC is centered. I am waiting on my TDC Whistle Tool to arrive in the mail to help me by tapping the engine over but I know it would be only approximate. Also learned about a Piston Stop Tool to use but I would have to get underneath the car to turn the crank bolt. Lets just say I wanted to go ahead and use something as a Piston Stop Tool without actually ordering one. What would you slide in there to get the most accurate reading to mark the crank balancer pulley? Don't think I have any wooden dowel pins and how hard will it be to turn the inline six cylinder engine with five plugs and serpentine belt installed? Is there any risk of snapping that bolt off?
I didn't have a balloon so I cut off the finger of a rubber glove and taped it to my compression tester hose. I wasn't able to get a wrench on my crank bolt so I put the manual trans in fifth gear, brake off, and rocked the car back and forth pushing/pulling on the shock tower. This method seemed to be quite accurate as far as determining TDC as the glove responded to the slightest piston movement. I also tried the screwdriver method but I think the balloon is more exact and there is no possibility of damaging anything inside the cylinder.
Now that's what I'm talking about, good old garage engineering and never making excuses JUST HANDLE IT! Excellent improvising God bless.
POOR STUPID MORON you are !
thank you was very smart idea thank you
Right on Wayne, glad it helped.
This is awesome OG. Will this work on older cars? I have a 69 F100 with 360 V8 engine
thank you very much! :D this was very helpful
What did you use to thread into the engine?
sounds good. i'll try it today on my Volvo S40. I recently heard that timing on Volvo is based on marks and not TDC. What is your insight? This video has helped understand how to find COMPRESSION on the valve side. I think I have my timing incorrect but this should help me get it back on timing and get it fired up. any advice you can give please let me know. Good video.
If your changing and setting your timing belt to get the #1 cylinder at (TDC) start with the balloon trick first, then finish your top dead center with the screw driver second, its faster. I showed the screw driver trick first just for demonstration purposes.
Appreciate ya man! Thanks
Great Video
so do we not need to turn engine backwards as well and find the middle of the 2 lines to find the real top dead?
Sir, I'll tell ya I appreciate your video the balloon for the #1 compression stroke is creative wisdom would you consider it safe to remove the starter and I'll use the word jam something to prevent the crankshaft from moving keeping the motor at TDC while your do the work on the timing belt?
Great trick!
Good Job!
Thanks Paulo Dee appreciate the comment
thank you!!!
Crazy question, but will this work with the cams removed?
👏👏👏👏👏 Thank you.
bro, your the truth👏👏🤘
How do you know if those lobes are off of the lifters? You mean the pointed portion has to be facing upward?
With finding TOP DEAD CENTER (TDC) can I set my timing chain correctly?
love the vid, very good tip.. the only downside is the screwdriver doesn't work on all engines.. any ideas for ohv engines?
g Thanks g, On V type engines I have someone turn the engine with a ratchet while I place my finger on the spark plug hole or spark plug well to feel for the compression stroke. Then I put a bendable oldskool hanger or anything that can bent and hold it on the top of the piston until it reaches TDC
+oldskool funk I didn't get the hanger trick could u explain pls
the hanger is flexible enough to go into hole, lay on top of piston and show evidence of TDC
not a big fan of screw driver trick, got one stuck yesterday....rummaging thru the kids stuff and making the balloon tool today....you are a genius!!
This is a great tip. Just wondering how I would apply this method to a marine gm small block?
Do the other spark plugs need to be in or removed?
nice video thanks for the info.
i know this is probably a dumb question. but this video is for a timing blet change.. so that the timing can be on point?? love the videos
Bruh I put a compression gauge on the 1st cylinder on my 3L Ford Ranger and the gauge never went up but I heard air coming from somewhere. The hose on the spark plug hole was snug. Any idea what my problem is?
What did you put on the hose to screw into the motor with the ballon? I get the hose and ballon concept but I'm lost as to what you used to screw it in.
Deonb2026 compression tester line
or hollow out a spark plug
Love your videos man!! I have an issue. I tried doing this balloon test you did because my 93 civic cranks but doesn’t start so I set the timing marks and put the compression hose like you did on spark plug 1 with baloon attached and balloon doesn’t fill up with air but it does suck up air. I turned the engine about 4 times. Please help my friend!!