I bought an eBay RB25DET Series 2 complete with turbo for $2,500 delivered to my door. It has been an absolute epic engine for the past 1.25 years and has never let me down. Best eBay experience I've had to date..
I bought a 13b REW on e-bay 5 or so years ago, installed it in my car and it was only running on one rotor. Tore it down and the front rotor and housing were trashed from a broken apex seal. Never buying a motor on e-bay again. Only upside is I could use the good rotor and housing to repair my engine which also had a bad rotor and housing.
Uh, ebay produces a website and online auctions and many services for its customers who pay part of their purchase price or proceeds for the service. They "seller" pays it but if no one buys their stuff, they don't really have the money to pay ebay ebay is also the "arbitrator" between buyer and seller and "personal communication" out side of ebay about ebay transactions is supposed to be a no-no. So basically ebay acts as an agent between buyer an seller and if a buyer an seller can't work out any problems between themselves ON ebays site through their communication channels, ebay is probably going to be "paying" for the results of unhappy buyers. Its interesting how some people who clearly have no idea what "stuff" is and no clue what companies do or what is considered "producing" things or "production" have so many "facts" and "opinions" about "business" that are completely wrong. Of course its also interesting how some people are so brainwashed into political correctness and unsure of themselves enough to BE brainwashed to that degree and are socially retarded enough thanks to their insecurities that they're not able to make an actual critical comment about even anonymous strangers online. Let me show you how its done. If you don't think ebay "produces stuff", you're a fool. If you think I "don't get" that "you meant ebay doesn't make engines" which is the response I'd expect to get from someone "called out" for their own incorrect "observations" online, I "can't get" what you didn't say. If you mean ebay doesn't make engines and isn't responsible for an engine being bad or good and people who say "ebay this" when they're talking about something just SOLD on ebay and they should specify the SELLER or not make the video so viewers don't get CONFUSED, then SAY IT. Its a COMMENT SECTION. FOR THE VIDEO. IF YOU HAVE A PROBLEM WITH IT THEN SPEAK UP AND TELL THE PEOPLE WHO MADE THE VIDEO. Don't be a little BITCH trying to be an undercover badass and "observe" something and make the implication its wrong and that the VIDEO PRODUCER is wrong while trying to keep "deniabilit. What's INTERESTING is that there are so many people out there who have opinions and get on the internet to give them and then say NOTHING that might get them "in trouble".
Ive run 32 psi on a GT42 turbo on 3 piece apex seals, and they held up just fine. If you know how to tune, you will not have a bad time. The highest power I have seen on a completely stock rew is 857whp. please do not propagate the myth that apex seals are weak.
Seems worth it to me.. I bet it would last for someone doing a N/A build or swap for a daily.. Can't be mad about the pilot bearing that wasn't advertised lol
that's so wrong of you guys; you can't call it ebay teardown. ebay don't sell these engines. people sell them through ebay. the quality of the products that you buy depend on the the people that are selling them on ebay. that's stereotype; you basically putting every seller on the same bag. that's misleading and it's a disgrace.
You sound like a bit of a dumbass. Buying an engine from ebay is a risk no matter who sells it through ebay. Buying it off a well respected mate or other 3rd party is a much lower risk.
Agree 100%!! It depends on if your buying it from an actual business that imports these motors or if your just buying it off some bloke that buy's wrecked cars for dirt cheap and parts them out. To group them all together like that is just wrong. The place i buy my honda motors from has a website where you can order from or you can call them, but also have an eBay page cause its a great platform to sell on. just because they sell on ebay doesn't make them less quality, one time i called them and drove out an hour to pick up my motor. They offer great service and even give you a warranty. Of course there are some bad sellers out there but there no such thing as an "Ebay motor" or an ebay anything, It's just people going on ebay trying to spend as less as possible and getting either ripped off or a shitty product.
I did a s4TII>s5TII swap. Got a JDM S5TII engine off ebay. 2200$ to door. Had a Haltech wired in.It kept starting but shutting off after a few min. Started it one time and the front half of the motor seized before ever driving the car. Pulled the motor and broke it down and everything looked really good.. 3rd gen rotors too. Took it to a rotary shop and the guy said it was recently rebuilt and the apex seals were almost brand new, but a bearing wasn't centered correctly when being tightened down in the rebuild and went out fast. Got it rebuilt and streetport by him so all good now. If I were to do another build, I'd just buy a rebuilt core from a rotary shop for like 1200$ and then find manifolds turbo ect. Would cost about as much as I paid before I had to do a rebuild.. and it'd be a fresh rebuild.. I'd say rotary is a hit and miss on ebay but a lot of people seem happy with their piston motors from there.
Regardless of whatever variables there can be with regard to risks and conditions of engines and sourcing and even how much is paid, seems that common sense and luck are valuable factors but one thing for sure, though well intended, the video is seriously lacking in focus and the cameraman should be silent and concentrate on subject matter more which is something that can be controlled and fine tuned! Let's hope the next vid is better! Thank you mechanic and keep rotoring!!
That nice clean oil standing inside that old, worn-out and carboned-up junkyard engine look like evidence somebody did the old "wet" compression test with a nice coating of fresh oil in the engine to seal it up and make a tired engine seem a lot healthier than it is. Either that or its remnants of somebody doing a wet test after the dry test showed it was a boat anchor better replaced than rebuilt or scrapped with the car it was installed in when the "simple" rotary engine was going to cost more to rebuild or replace than the car was worth. If $1500 for a partial core that's going to need new housings and a complete rebuild is a good deal I'd hate to see a bad one.
If the engine is good? maybe, the RX8 has the renesis engine which is not what most people are looking for, they want the 13B from the s6/s7 RX7(own experience, dont take it as absolute truth) I would not pay 2g for a renesis but if the engine is fine there is maybe someone who is willing to.
But the renesis is a more powerful, more modern engine! It has almost as much power N/A STOCK as the 13 BREW does! LOL now i know why people call you asswipes "rotards"!! AHAHHAHAHAHAHAHAHAH
I like how the camera douche was like, "I love this big focus ring.. so I can keep it in focus as you move around" and the entire time it was way out of focus.......
Great videos 👍 Interesting comments. Do u know if premixing 1/2 - 1oz of 2 stroke oils will definitely help seals or just a myth? Many have advised to premix with regular non synthetic 2 stroke oils but I have not seen scientific proof. Thanks & keep up great videos 🙏⭐🎆👍
I too have been wondering the same I've been looking everywhere and it seems to be up to personal opinion or if you have oil sprayer delete it is a must but I'm new to the rotary scene myself
@@bear420allday3 Thank you Bear, i have researched different forums & sites on rotary maintenance. Yes agree with different methods according to driving style, conditions, rpms levels, seals, spark plug types, catalytic converters, etc. My guess is that high Rpm race track drivers probably need more oil to help preserve seals and chamber compressions. Too much premix oils may clog catalytic converter. There are some "ashless" oils that burn off better. In any case, maybe better to clog a $200 catalytic converter than $2000 rotor rebuild. Continued blessings 👍⭐🙏🚗🚘
@@sandervanderkammen9230 Thank you Sander & Bear for interesting viewpoints. Im not a mechanic but viewed over 101 videos, forums etc. and im still undecided ☺ i know some owners who never ever premixed before. Maybe i need to test drive other Rx8s. Some TH-cam videos show rotor wear but still unsure what to conclude since oils may have been injected by factory OMP and/or premix. Plus video is unclear how car was driven. Apparently older series 1 (04-08) may or may not have had adequate oils to lube rotors. But agree that premix oil may only help if metal clip seals have been damaged, or maybe continuosly reved at high Rpms. In any case, thank you for interesting premix opinion ☺⭐👍🚗🚘
Would it be a good idea to buy a used (But fresh) motor for an rx-8 on Ebay and just installing it? I know I couldn't do a DIY engine rebuild,but replaying the engine could be a viable option and technically it would save me a lot of money
It is normal rotary engine that someone is selling on Ebay. It doesn't mean that ebay produced the engine nor the seller got it from Alibaba. You could get the same engine with the same or similar issues if you have bought it from anyone else on planet earth.
If you buy a boat anchor engine on eBay and the description doesn't match the condition the buyer protection on eBay has been very good to me in my experience. Your lucky you can even find these engines. Its a used engine and your either going to refresh/rebuild it or toss it in and continue through its service life where it left off when pulled from the donor car. These engines will one day be like flatheads... rare and even more expensive than they are now... I wouldn't say rotaries are unreliable, but I would say they are pricey pieces of kit to run. They are a unique design and part and parcel with that is its own specialty knowledge required to keep them going. 9:00 no one says german cars are reliable... they are money pits.
"the buyer protection on eBay has been very good to me in my experience."......... the buyer protection is really good on ebay. however as a ebay store owner it isn't necessary. all you have to do is slightly complain and i'll send out a replacement in minutes.
I agree that contacting the seller is the first and best way to sort out a problem, but I also believe that some sellers are motivated to seek resolution because eBay protects buyers IMO more than sellers.
I will add this though. there are scammers in every outlet. I know scammers on amazon and ebay and etsy and in real life. IF the seller doesn't offer IMMEDIATE resolution then report them immediately. then leave them negative feedback. my stores of course have very high customer service ratings. I make custom decals as well. and very often I have to replace the decals because a customer measured incorrectly. and I replace them happily not a prob for me
Do ppl actually buy used Rotary engines and install them without inspecting it? I've bought many used piston engines and do an inspection sometimes removing the heads etc before installing it. I don't know much about Rotaries but would never install something without checking it out first, that's just dumb.
13b's are already super cheap to rebuild anyway. Get one professionally done for $4-5k. If you have a FD that is a great deal. If you have an FC or rx8 I guess this is a good option.
This question is for the man actually doing the tear and seems to have experience with rotary engines. What oil do you recommend using conventional or synthetic?
I came up with a theory. To my knowledge, apex seals are pushed against the housing by the springs. What if you could somehow lock the seals in place, so they don't scrape the surface of the housing? You wouldn't lose compression in such a "short" term. Again, I'm no expert, just an ambitious enthusiast
Kristóf Kocsis they're seals. if they don't scrape the housing, there is no compression. They are made to create a seal, that's why the springs push them against the housing
The seals must be able to move in order to compensate for the thermal expansion of the engine and the bearing clearance and flex of the eccentric-crankshaft. If the seal does not maintain the correct pressure against the housing it will leak and will overheat, burn or crack from the leaking combustion gases.
i rebuilt my 8 about 30xxx now the front housing did have groves from the oil control rings,took it to another rotary guy he said it was with in specs,took his word re assemble with rotary aviation apex super seals all third gen good stuff and off we went,now im thinking of turbo charging the thing but will that front iron hold boost?also for reliability reason i want to use gsl se housings for this build will it work&tunning wise will it be a b!tch im using a gt45 for highway pulls b also a Mazdamaniac piggy back since its based of micro tech with big injectors will this combo work with the light porting i did on rebuilt to clean it all up
those RA super seals are just wearing down your housing just FYI, if you're going with SE housings just go with OEM cast iron seals, they'll hold up much better as that's what the SE housing are made for and for your front iron maybe resufacing and re-nitrating it would be a good idea if you're concerned about it
You can get good engines off ebay, BUT, if the description list it "as is" with no details then it's always at your own risk. But if the description details everything on the engine like exact miles of the car it was in, original or reman and compression numbers then you should be good.
lol dude theres so much hate in the comment section hahahah but good video learned what to look for when tearing down a 13B if i ever get one . #EveryoneHatingOnKenny 😂😂
if u didn't build the motor and raced on it for 9 MONTHS IT WAS WORTH IT IF U PAID 2500 FOR IT AND RAN LIKE A NORMAL PERSON AND IT BROKE DOWN IN 5 months u got worked u get what u pay for and take the risk if u don't know the mechanic and his work some get lucky some don't !
thedog556 for sure. even a little 4.8 LS with mild bolt ons would spank on a 13b unless you drop 10k on it. and for a couple Grand you can twin turbo an LS and spank on anything with an engine...
what oil would you use racing a renesis with sohn gated sump in a westfield kitcar on slicks, i keep destroying rear rotor bearings in 1500 miles fd press reg fitted 100psi oil pressure. im getting no oil surge. on engine 3 now.
Yes mate, first engine no...2 nd failed engine yes. run an RX8 performance gated alloy sump, no surge what so ever. ran a catch tank on both engine zero oil in catch tank. I also run a FD rear oil reg so oil pressure at 100psi WOT...ive just installed 3rd engine and this time out of desperation have gone to 5w40 Fully Syn. nano drive millers on recomendation from another racer who has been using for 2 season no issues...i also fitted thermal bypass pellet and sohn adaptor to this engine as well. I was using 10w30 synionic Rotary Formula oil before , a highly regarded oil.........like i said x 2 rear rotor bearing destroyed...My digi dash has 2 oil pressure alarm setpoints and i set at 40psi and 16 psi...both on track have never come on...the 40 psi is on when idling. Im an Engineer by trade and i cant see anything wrong with my mechanical set up...hopefully switching to the 5/40 FS will solve it.
boosted38 At this point you should be asking yourself if you're building the engine incorrectly or whether you should upgrade all your internals to something even more aggressive. Did you look online for a full spec sheet of torque ratings and clearances from other racers using the same parts?
I baught a 13b turbo11 from tiger imports in Canada and let me just say never ever again the engine was junk the transmission was full of water 50000 miles yea right more like 950000 miles and went through he'll getting half my money back with a rotary engine if you can't look it over in person don't do it that's my personal opinion
When I saw your title, I thought there were Chinese sellers of new rotary engines on Ebay and I was intrigued, but then you broke out a used engine. How can you evaluate whether "eBay Rotary Engines are Bad" by evaluating a used engine? You might have a good one, you might not, but it says nothing about all rotary engines on eBay.
there is a german company, you can reach via "wankelmotorguru.de" which offers totally rebuild engines for around 3500-4500€. they provide informations on how to check wether your engine is worn and what might be wrong with it, which keeps people from unnecessarily buying unneeded spareparts.
I love to hear people who think they buy and 'Ebay' brand...Anything. Ebay is a marketplace, on the internet, welcome to reality kids... I'm not particularly fond of what Ebay has turned into lately but that's entirely besides the point...its a marketplace, with honest people and dishonest people and everywhere in between. Is this for learning disabled people to help them understand the principle behind and online marketplace or is this a video by someone thinking that Ebay produces products and sells them? I guess I'm confused.
Not sure this is so useful....??? If these engines were all coming from a few known rebuilders then comparisons could be made. Buying anything used is a huge gamble just the same as buying from a local wrecking yard...
...........ohhhhhhhhhhhhh...................for fuck sake............can't make it through half of this fuckin video.................still in search of rotor knowledge..............................later.
No need for all the expletives. Really distracts from the focus of the video and makes me question if these people even know what they are doing as opposed to a bunch of guys just hanging out in somebody's garage down the block.
Hey "Rotors Magazine" we don't need the inane chatter about people we don't know, poor camera work or to know you are taking a chance buying from eBay. Stick to a script, write one.
Live on a Friday afternoon? Why is that relevant? You sure you didn't just put that in there so whoever owns the shop you're in after hours doesn't get pissed if they see their shop being used for commercial purposes online or something? Or are you just trying to trick casual viewers who aren't rotary guys into thinking rotary fanboys actually work on Friday afternoons?
got halfway through before the camera mans DUMBASS hip lingo finally got on my last fucking nerve.
But I'm hella lit AF bro. Don't sweat my swag, yolo.
I didn't even make it halfway, what a complete idiot.
Brian Tolliver Yeah, it's not for evry one. But I'm still gonna seenndd ittt
yeah wtf
Just straight cancerous, 4 minutes and I'm done
I bought an eBay RB25DET Series 2 complete with turbo for $2,500 delivered to my door. It has been an absolute epic engine for the past 1.25 years and has never let me down. Best eBay experience I've had to date..
next video: are pizza parlor gallo 24s bad? we find out
I personally prefer the Gallo 12
I bought a 13b REW on e-bay 5 or so years ago, installed it in my car and it was only running on one rotor. Tore it down and the front rotor and housing were trashed from a broken apex seal. Never buying a motor on e-bay again. Only upside is I could use the good rotor and housing to repair my engine which also had a bad rotor and housing.
Camera man was actually funny. I like the charisma he brings into the video. Makes you feel more w ya boys lol
it is interesting how people think of eBay as a company that produces stuff.
Uh, ebay produces a website and online auctions and many services for its customers who pay part of their purchase price or proceeds for the service. They "seller" pays it but if no one buys their stuff, they don't really have the money to pay ebay ebay is also the "arbitrator" between buyer and seller and "personal communication" out side of ebay about ebay transactions is supposed to be a no-no. So basically ebay acts as an agent between buyer an seller and if a buyer an seller can't work out any problems between themselves ON ebays site through their communication channels, ebay is probably going to be "paying" for the results of unhappy buyers.
Its interesting how some people who clearly have no idea what "stuff" is and no clue what companies do or what is considered "producing" things or "production" have so many "facts" and "opinions" about "business" that are completely wrong.
Of course its also interesting how some people are so brainwashed into political correctness and unsure of themselves enough to BE brainwashed to that degree and are socially retarded enough thanks to their insecurities that they're not able to make an actual critical comment about even anonymous strangers online.
Let me show you how its done. If you don't think ebay "produces stuff", you're a fool. If you think I "don't get" that "you meant ebay doesn't make engines" which is the response I'd expect to get from someone "called out" for their own incorrect "observations" online, I "can't get" what you didn't say. If you mean ebay doesn't make engines and isn't responsible for an engine being bad or good and people who say "ebay this" when they're talking about something just SOLD on ebay and they should specify the SELLER or not make the video so viewers don't get CONFUSED, then SAY IT.
Its a COMMENT SECTION. FOR THE VIDEO. IF YOU HAVE A PROBLEM WITH IT THEN SPEAK UP AND TELL THE PEOPLE WHO MADE THE VIDEO. Don't be a little BITCH trying to be an undercover badass and "observe" something and make the implication its wrong and that the VIDEO PRODUCER is wrong while trying to keep "deniabilit.
What's INTERESTING is that there are so many people out there who have opinions and get on the internet to give them and then say NOTHING that might get them "in trouble".
what wqere you get that at i know of no one
you made it seem as if eBay sellers made these engines.
is that camera from ebay as well?
was super when you hit the crank with the cover upon removal @ 10:10 SWEEEEET
Ive run 32 psi on a GT42 turbo on 3 piece apex seals, and they held up just fine. If you know how to tune, you will not have a bad time. The highest power I have seen on a completely stock rew is 857whp. please do not propagate the myth that apex seals are weak.
mazder0 please more info.thank you
Seems worth it to me.. I bet it would last for someone doing a N/A build or swap for a daily.. Can't be mad about the pilot bearing that wasn't advertised lol
that's so wrong of you guys; you can't call it ebay teardown. ebay don't sell these engines. people sell them through ebay. the quality of the products that you buy depend on the the people that are selling them on ebay. that's stereotype; you basically putting every seller on the same bag. that's misleading and it's a disgrace.
Somebody didn't pay attention to the video. tsk. tsk.
You sound like a bit of a dumbass. Buying an engine from ebay is a risk no matter who sells it through ebay. Buying it off a well respected mate or other 3rd party is a much lower risk.
eddy junior Antoine Learn English
eddy junior Antoine is anyone thinking that Ebay are Selling ? wtf bruv? eBay is an MARKETPLACE people seeling their item Trough Ebay .
Agree 100%!! It depends on if your buying it from an actual business that imports these motors or if your just buying it off some bloke that buy's wrecked cars for dirt cheap and parts them out. To group them all together like that is just wrong. The place i buy my honda motors from has a website where you can order from or you can call them, but also have an eBay page cause its a great platform to sell on. just because they sell on ebay doesn't make them less quality, one time i called them and drove out an hour to pick up my motor. They offer great service and even give you a warranty. Of course there are some bad sellers out there but there no such thing as an "Ebay motor" or an ebay anything, It's just people going on ebay trying to spend as less as possible and getting either ripped off or a shitty product.
"Sometimes they have good luck, sometimes they have bad luck." Sounds like a rotary to me.
I did a s4TII>s5TII swap. Got a JDM S5TII engine off ebay. 2200$ to door. Had a Haltech wired in.It kept starting but shutting off after a few min. Started it one time and the front half of the motor seized before ever driving the car. Pulled the motor and broke it down and everything looked really good.. 3rd gen rotors too. Took it to a rotary shop and the guy said it was recently rebuilt and the apex seals were almost brand new, but a bearing wasn't centered correctly when being tightened down in the rebuild and went out fast. Got it rebuilt and streetport by him so all good now. If I were to do another build, I'd just buy a rebuilt core from a rotary shop for like 1200$ and then find manifolds turbo ect. Would cost about as much as I paid before I had to do a rebuild.. and it'd be a fresh rebuild.. I'd say rotary is a hit and miss on ebay but a lot of people seem happy with their piston motors from there.
You'll never get a reliable rotary from ebay, or anywhere else.
Or straight from the dealer ship.
Regardless of whatever variables there can be with regard to risks and conditions of engines and sourcing and even how much is paid, seems that common sense and luck are valuable factors but one thing for sure, though well intended, the video is seriously lacking in focus and the cameraman should be silent and concentrate on subject matter more which is something that can be controlled and fine tuned! Let's hope the next vid is better! Thank you mechanic and keep rotoring!!
That nice clean oil standing inside that old, worn-out and carboned-up junkyard engine look like evidence somebody did the old "wet" compression test with a nice coating of fresh oil in the engine to seal it up and make a tired engine seem a lot healthier than it is. Either that or its remnants of somebody doing a wet test after the dry test showed it was a boat anchor better replaced than rebuilt or scrapped with the car it was installed in when the "simple" rotary engine was going to cost more to rebuild or replace than the car was worth. If $1500 for a partial core that's going to need new housings and a complete rebuild is a good deal I'd hate to see a bad one.
I can buy an rx8 in good condition for around £2000. If I remove the engine I can sell the engine for around the same price or am I wrong?
If the engine is good? maybe, the RX8 has the renesis engine which is not what most people are looking for, they want the 13B from the s6/s7 RX7(own experience, dont take it as absolute truth)
I would not pay 2g for a renesis but if the engine is fine there is maybe someone who is willing to.
deadly phoenix If you're buying the car to tear the engine out you can get em for half that on autotrader.
But the renesis is a more powerful, more modern engine! It has almost as much power N/A STOCK as the 13 BREW does! LOL now i know why people call you asswipes "rotards"!! AHAHHAHAHAHAHAHAHAH
Well try to find a rx7 in good condition wich costs 2k ^^
Could you run an early 13b with Renesis engine management?
Thank you for the stunning footage. How do i remove the pilot bearing with out a special tool?
Keegan pack it full of grease and find a socket or something that fits tight in the bearing. Then tap it with a hammer.
Stunning? It was out of focus half the damn time!
I read the "stunning" comment as sarcasm.
I like how the camera douche was like, "I love this big focus ring.. so I can keep it in focus as you move around" and the entire time it was way out of focus.......
I bought a 13bt back in the day before the prices went insane and mine had good compression but it smoked badly.
Great videos 👍 Interesting comments. Do u know if premixing 1/2 - 1oz of 2 stroke oils will definitely help seals or just a myth? Many have advised to premix with regular non synthetic 2 stroke oils but I have not seen scientific proof. Thanks & keep up great videos 🙏⭐🎆👍
I too have been wondering the same I've been looking everywhere and it seems to be up to personal opinion or if you have oil sprayer delete it is a must but I'm new to the rotary scene myself
@@bear420allday3 Thank you Bear, i have researched different forums & sites on rotary maintenance. Yes agree with different methods according to driving style, conditions, rpms levels, seals, spark plug types, catalytic converters, etc. My guess is that high Rpm race track drivers probably need more oil to help preserve seals and chamber compressions. Too much premix oils may clog catalytic converter. There are some "ashless" oils that burn off better. In any case, maybe better to clog a $200 catalytic converter than $2000 rotor rebuild. Continued blessings 👍⭐🙏🚗🚘
@@chrislg4519 thanks for the reply and I do agree with you on everything I myself have come to the same conclusion thanks again for the reply
Premixing only helps after your seals are blown... don't waste money putting oil where the fuel goes.
@@sandervanderkammen9230 Thank you Sander & Bear for interesting viewpoints. Im not a mechanic but viewed over 101 videos, forums etc. and im still undecided ☺ i know some owners who never ever premixed before. Maybe i need to test drive other Rx8s. Some TH-cam videos show rotor wear but still unsure what to conclude since oils may have been injected by factory OMP and/or premix. Plus video is unclear how car was driven. Apparently older series 1 (04-08) may or may not have had adequate oils to lube rotors. But agree that premix oil may only help if metal clip seals have been damaged, or maybe continuosly reved at high Rpms. In any case, thank you for interesting premix opinion ☺⭐👍🚗🚘
When do you think you will make the video of fixing a flooded RX8 engine or repairing?
Would it be a good idea to buy a used (But fresh) motor for an rx-8 on Ebay and just installing it?
I know I couldn't do a DIY engine rebuild,but replaying the engine could be a viable option and technically it would save me a lot of money
It is normal rotary engine that someone is selling on Ebay. It doesn't mean that ebay produced the engine nor the seller got it from Alibaba. You could get the same engine with the same or similar issues if you have bought it from anyone else on planet earth.
A motor huh ? Never seen an electric motor like that before. LMAO
whats the song called that starts at the beginning?
matthew may and vargas told me it was important to time my rotors. how is this done?
If you buy a boat anchor engine on eBay and the description doesn't match the condition the buyer protection on eBay has been very good to me in my experience.
Your lucky you can even find these engines. Its a used engine and your either going to refresh/rebuild it or toss it in and continue through its service life where it left off when pulled from the donor car. These engines will one day be like flatheads... rare and even more expensive than they are now...
I wouldn't say rotaries are unreliable, but I would say they are pricey pieces of kit to run. They are a unique design and part and parcel with that is its own specialty knowledge required to keep them going.
9:00 no one says german cars are reliable... they are money pits.
"the buyer protection on eBay has been very good to me in my experience."......... the buyer protection is really good on ebay. however as a ebay store owner it isn't necessary. all you have to do is slightly complain and i'll send out a replacement in minutes.
I agree that contacting the seller is the first and best way to sort out a problem, but I also believe that some sellers are motivated to seek resolution because eBay protects buyers IMO more than sellers.
I will add this though. there are scammers in every outlet. I know scammers on amazon and ebay and etsy and in real life. IF the seller doesn't offer IMMEDIATE resolution then report them immediately. then leave them negative feedback. my stores of course have very high customer service ratings. I make custom decals as well. and very often I have to replace the decals because a customer measured incorrectly. and I replace them happily not a prob for me
Do ppl actually buy used Rotary engines and install them without inspecting it? I've bought many used piston engines and do an inspection sometimes removing the heads etc before installing it. I don't know much about Rotaries but would never install something without checking it out first, that's just dumb.
Nice video. Good look at the process. If you could just keep your friends quiet it would be better.
13b's are already super cheap to rebuild anyway. Get one professionally done for $4-5k. If you have a FD that is a great deal. If you have an FC or rx8 I guess this is a good option.
This question is for the man actually doing the tear and seems to have experience with rotary engines. What oil do you recommend using conventional or synthetic?
Conventional.
Any oil with the correct API or EC rating is perfectly safe, the term synthetic is meaningless marketing term and its use is not regulated.
I came up with a theory.
To my knowledge, apex seals are pushed against the housing by the springs. What if you could somehow lock the seals in place, so they don't scrape the surface of the housing?
You wouldn't lose compression in such a "short" term.
Again, I'm no expert, just an ambitious enthusiast
Kristóf Kocsis they're seals. if they don't scrape the housing, there is no compression. They are made to create a seal, that's why the springs push them against the housing
No seal=No compression
The seals must be able to move in order to compensate for the thermal expansion of the engine and the bearing clearance and flex of the eccentric-crankshaft. If the seal does not maintain the correct pressure against the housing it will leak and will overheat, burn or crack from the leaking combustion gases.
i rebuilt my 8 about 30xxx now the front housing did have groves from the oil control rings,took it to another rotary guy he said it was with in specs,took his word re assemble with rotary aviation apex super seals all third gen good stuff and off we went,now im thinking of turbo charging the thing but will that front iron hold boost?also for reliability reason i want to use gsl se housings for this build will it work&tunning wise will it be a b!tch im using a gt45 for highway pulls b also a Mazdamaniac piggy back since its based of micro tech with big injectors will this combo work with the light porting i did on rebuilt to clean it all up
those RA super seals are just wearing down your housing just FYI, if you're going with SE housings just go with OEM cast iron seals, they'll hold up much better as that's what the SE housing are made for and for your front iron maybe resufacing and re-nitrating it would be a good idea if you're concerned about it
Nate Rist ive heard that before but ive been pre mixing since the rebuilt so on tear down we'll find out....lol
Please attend a third grade English class and rewrite your comment
Death2508 do you have anything useful to add to this discussion or are you just here to troll?
J Bravo you should go with the vs racing 7875
those piston rings look fresh, nice find!
your camera man needs to be fired just saying
You can get good engines off ebay, BUT, if the description list it "as is" with no details then it's always at your own risk. But if the description details everything on the engine like exact miles of the car it was in, original or reman and compression numbers then you should be good.
I just bought a RHDjapan new motor and its great at half the price of buying direct from Mazda Australia.
lol dude theres so much hate in the comment section hahahah but good video learned what to look for when tearing down a 13B if i ever get one . #EveryoneHatingOnKenny 😂😂
What engine hoist do you use?
replace motor every 2 oil changes
your shop must be close to a freeway
Can i reuse the tension bolts?... n/a rx8
if u didn't build the motor and raced on it for 9 MONTHS IT WAS WORTH IT IF U PAID 2500 FOR IT AND RAN LIKE A NORMAL PERSON AND IT BROKE DOWN IN 5 months u got worked u get what u pay for and take the risk if u don't know the mechanic and his work some get lucky some don't !
What would you replace to make that motor run 100% ?
thedog556 lol
thedog556 for sure. even a little 4.8 LS with mild bolt ons would spank on a 13b unless you drop 10k on it. and for a couple Grand you can twin turbo an LS and spank on anything with an engine...
Who can I contact on what I need to know or get to have a good running 13b "reliable" build for around 350-400 hp
what oil would you use racing a renesis with sohn gated sump in a westfield kitcar on slicks, i keep destroying rear rotor bearings in 1500 miles fd press reg fitted 100psi oil pressure. im getting no oil surge. on engine 3 now.
boosted38 do you have a baffled sump?
Yes mate, first engine no...2 nd failed engine yes. run an RX8 performance gated alloy sump, no surge what so ever. ran a catch tank on both engine zero oil in catch tank. I also run a FD rear oil reg so oil pressure at 100psi WOT...ive just installed 3rd engine and this time out of desperation have gone to 5w40 Fully Syn. nano drive millers on recomendation from another racer who has been using for 2 season no issues...i also fitted thermal bypass pellet and sohn adaptor to this engine as well. I was using 10w30 synionic Rotary Formula oil before , a highly regarded oil.........like i said x 2 rear rotor bearing destroyed...My digi dash has 2 oil pressure alarm setpoints and i set at 40psi and 16 psi...both on track have never come on...the 40 psi is on when idling.
Im an Engineer by trade and i cant see anything wrong with my mechanical set up...hopefully switching to the 5/40 FS will solve it.
boosted38 At this point you should be asking yourself if you're building the engine incorrectly or whether you should upgrade all your internals to something even more aggressive. Did you look online for a full spec sheet of torque ratings and clearances from other racers using the same parts?
First engine built by a very reputable uk rebuilder and 2nd engine was a mazda built unit pulled form a wrecker.
Why mention ebay? Its just a second hand engine in the same condition as it would be if you bought anywhere else
ive purchased 3 series5 conplete engines on ebay all turnes out awesome
When you buy a rotary engine you're suppose to rebuilt it anyway don't ever plan on buying a motor and putting it right in your car!
I baught a 13b turbo11 from tiger imports in Canada and let me just say never ever again the engine was junk the transmission was full of water 50000 miles yea right more like 950000 miles and went through he'll getting half my money back with a rotary engine if you can't look it over in person don't do it that's my personal opinion
try and find a Rota here in pomgolia on eBay.
2:02 strings...?
When I saw your title, I thought there were Chinese sellers of new rotary engines on Ebay and I was intrigued, but then you broke out a used engine. How can you evaluate whether "eBay Rotary Engines are Bad" by evaluating a used engine? You might have a good one, you might not, but it says nothing about all rotary engines on eBay.
13b??? I'd not because alot tear them from eunos and those cars are collectors.
there is a german company, you can reach via "wankelmotorguru.de" which offers totally rebuild engines for around 3500-4500€. they provide informations on how to check wether your engine is worn and what might be wrong with it, which keeps people from unnecessarily buying unneeded spareparts.
of course you need to speak/understand german 😅
TheWolvesCurse hahaha way way over priced
I love to hear people who think they buy and 'Ebay' brand...Anything. Ebay is a marketplace, on the internet, welcome to reality kids... I'm not particularly fond of what Ebay has turned into lately but that's entirely besides the point...its a marketplace, with honest people and dishonest people and everywhere in between. Is this for learning disabled people to help them understand the principle behind and online marketplace or is this a video by someone thinking that Ebay produces products and sells them? I guess I'm confused.
Maybe they have a designated engine they use for compression testing and ship you the dunce.
taipeikartman dude lol
Didn’t you just say the front rotor housing was cracked and then proceeded to say everything was good!?🤔🤷🏼♂️
How many miles will these engines last?
About as long as a set of good tires...
17 min of my life would have been wasted.. instead i watched 3 min and skipped to the comments.. thanks for the heads up on the wannabe narrator guys
u get wat u pay for , great video , around 7000$ u can buy a new one👍
Not sure this is so useful....??? If these engines were all coming from a few known rebuilders then comparisons could be made. Buying anything used is a huge gamble just the same as buying from a local wrecking yard...
First I was going to ask if you use a potato to film this ,but then I watched all the way and realized the camera operator was a potato.
Lol the shaft is very nice.
hah love the nick colletti reference at 11:47
...........ohhhhhhhhhhhhh...................for fuck sake............can't make it through half of this fuckin video.................still in search of rotor knowledge..............................later.
Peace brothers
Description on what the pieces you were removing would be nice next time.
That engine is done for the count..
Dat camera focus
The camera man should shut up 🤐
looks pretty solid to me..
What I got out of this video, fat people can adapt their breathing to being fat xD haha.
No need for all the expletives. Really distracts from the focus of the video and makes me question if these people even know what they are doing as opposed to a bunch of guys just hanging out in somebody's garage down the block.
I like to keep burgers in my pocket
Anyone sell good reman engine's?
lol you guys are funny, #subbed
I love the statement ( facebook famous) , subscribed and watching .
need to check out that rave next door:)
Hey "Rotors Magazine" we don't need the inane chatter about people we don't know, poor camera work or to know you are taking a chance buying from eBay. Stick to a script, write one.
Fite me irl.
They're all bad...
I'm out.......
mute
Talking out their back hole
this engine known for corbon build up and apex seal problem
where u buying ur engine from junk yard?
It's know for that to people that don't know proper maintenance.
A redline a day keeps the carbon away.
Shh, back to a piston engine you go troll.
the focus was terrible it bout gave me a damn headache trying to watch, fire your camera man please !
Live on a Friday afternoon? Why is that relevant? You sure you didn't just put that in there so whoever owns the shop you're in after hours doesn't get pissed if they see their shop being used for commercial purposes online or something? Or are you just trying to trick casual viewers who aren't rotary guys into thinking rotary fanboys actually work on Friday afternoons?
Engine for a tuk tuk build!
can I get 17 minutes of my life back please...
LOL why bother with feebay? Just go to a "pick-y-pull" type yard and get one for $150. I don't know why anyone would want one of these crappy engines.
Nah, pass...
Rotary to V8 conversion aye.
MeMad Max you give us v8 owners bad rep
camera guy needs to shut up. good stuff otherwise
loose the drums.
if you guys could tape the camera guys mouth shut,this might be watchable
Wow....not impressed with the language....
K. C. No one fucking cares