Continuous Rear Main Seal Oil leak
#1
RE Suikoayanajim
Thread Starter
Continuous Rear Main Seal Oil leak
Hello guys,
I am really fed up of replacement this Rear Main Seal!!! this is the 6th time I am changing the seal, why? all the time the garage is asking me to replace the seal... I am tired
Anyone knows what is the cause? please help
Thanks
I am really fed up of replacement this Rear Main Seal!!! this is the 6th time I am changing the seal, why? all the time the garage is asking me to replace the seal... I am tired
Anyone knows what is the cause? please help
Thanks
Last edited by RE.Amemiya.FD3S; 03-13-16 at 07:07 AM. Reason: spelling mistype
#3
SEMI-PRO
iTrader: (2)
See this thread for pictures. Ask to see the rear main seal they pulled from the engine. If it's the incorrect seal they should pay you back for the last 5 jobs.
https://www.rx7club.com/general-rota...rning-1097212/
https://www.rx7club.com/general-rota...rning-1097212/
#5
RE Suikoayanajim
Thread Starter
See this thread for pictures. Ask to see the rear main seal they pulled from the engine. If it's the incorrect seal they should pay you back for the last 5 jobs.
https://www.rx7club.com/general-rota...rning-1097212/
https://www.rx7club.com/general-rota...rning-1097212/
I guess this clears my problem, let's try the original seal from Tasca and see.
Thanks a lot
#6
Original Gangster/Rotary!
iTrader: (213)
Someone should contact Atkins and let them know that this may be an issue.......
New RX-8 parts are not always better than the original FD3s parts.
Btw, be careful ordering from Tasca. I suppose they can't screw up a rear main seal, but every single interior part I've tried to order from them I sent back because it was either shipped to me already damaged, or was damaged in shipping. This happened multiple times. They have no idea what they hell they're doing IMO.
***RayCrowe4Life***
New RX-8 parts are not always better than the original FD3s parts.
Btw, be careful ordering from Tasca. I suppose they can't screw up a rear main seal, but every single interior part I've tried to order from them I sent back because it was either shipped to me already damaged, or was damaged in shipping. This happened multiple times. They have no idea what they hell they're doing IMO.
***RayCrowe4Life***
Last edited by GoodfellaFD3S; 03-15-16 at 07:06 AM.
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#8
Original Gangster/Rotary!
iTrader: (213)
^Yup, someone needs to contact Atkins and tell them to stop sending that part like yesterday.
A local buddy of mine has to fix the exact some problem for the exact same reason.
A local buddy of mine has to fix the exact some problem for the exact same reason.
#9
Sponsor
iTrader: (41)
While the design is slightly different, the two seals are interchangeable. If you have a leak it is most likely from installation error. The orange rx7 rear main seal is a bit wider than the maroon rx8 seal. Because of this the rx8 rear main seal can be installed too far in. The eshaft can have corrosion or other blemishes and since the seal is now sitting further in, it can sit on those imperfections and not seal. Both seals need to be installed flush with the stationary gear base, not recessed. It is also a good idea to hit the surface of the eshaft that rides on the seal with fine emery cloth to make sure its smooth. While I have used both seals, I prefer to use the correct part for the given application.
Last edited by IRPerformance; 03-25-16 at 01:42 PM.
#12
Racing Rotary Since 1983
iTrader: (6)
"If you have a leak it is most likely from installation error."
"OP, are you sure its not leaking from the rear stationary gear?"
it is certainly possible to install a rear seal in such a manner that it leaks. it is great that tips were shared such as seal depth.
cleaning/polishing the contact surface on the crank is essential as is adding a small amount of lube to the journal... same for the front hub seal contact surface.
cleaning the mating surface between the stationary gear and seal is not to be taken lightly.
my seal leaks clearly came from the O D of the seal, not the stationary gear/rear iron mating surface or the I D.
pretty simple stuff here.... why would anyone use a 5 mm contact surface over a 10 mm.
as to the hand modeling... maybe i will have to clean my fingernails...
Howard
"OP, are you sure its not leaking from the rear stationary gear?"
it is certainly possible to install a rear seal in such a manner that it leaks. it is great that tips were shared such as seal depth.
cleaning/polishing the contact surface on the crank is essential as is adding a small amount of lube to the journal... same for the front hub seal contact surface.
cleaning the mating surface between the stationary gear and seal is not to be taken lightly.
my seal leaks clearly came from the O D of the seal, not the stationary gear/rear iron mating surface or the I D.
pretty simple stuff here.... why would anyone use a 5 mm contact surface over a 10 mm.
as to the hand modeling... maybe i will have to clean my fingernails...
Howard
#16
Urban Combat Vet
iTrader: (16)
A second suggestion to look at the flywheel. I've seen a couple FW's whose surfaces were either deeply grooved or damaged...somehow, with pitting.
FWIW, I've ordered a few things from TASCA, a door light switch and right side defroster vent among them. No complaints.
FWIW, I've ordered a few things from TASCA, a door light switch and right side defroster vent among them. No complaints.
Last edited by Sgtblue; 05-02-16 at 04:32 AM.
#18
RX-7 Bad Ass
iTrader: (55)
The stock rear main seal seems to still be available new, and it doesn't cost that much. I would just get the right part.
IMHO there's no good reason to use the RX-8 seal. Get the right part, do it once, do it right.
If that's what they want to bundle with their seal kits, that's fine, just order another seal and pitch the RX-8 seal. It's not like they're horribly expensive.
Dale
IMHO there's no good reason to use the RX-8 seal. Get the right part, do it once, do it right.
If that's what they want to bundle with their seal kits, that's fine, just order another seal and pitch the RX-8 seal. It's not like they're horribly expensive.
Dale
#20
F'n Newbie...
iTrader: (6)
I can't help but wonder if the leaks aren't caused by install error, rather than seal design.
Just thinking out loud, but wouldn't this be a known/recall item from the rx-8's if it were a result of only the seal? Or perhaps its due to mixing an 8 seal, with an FD gear and an FD e-shaft...
I'll be firing mine up this fall and I built my engine with 8 stat gears and an 8 e-shaft.. hoping they work better together..
Just thinking out loud, but wouldn't this be a known/recall item from the rx-8's if it were a result of only the seal? Or perhaps its due to mixing an 8 seal, with an FD gear and an FD e-shaft...
I'll be firing mine up this fall and I built my engine with 8 stat gears and an 8 e-shaft.. hoping they work better together..
#21
Penis Healthy
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I can't help but wonder if the leaks aren't caused by install error, rather than seal design.
Just thinking out loud, but wouldn't this be a known/recall item from the rx-8's if it were a result of only the seal? Or perhaps its due to mixing an 8 seal, with an FD gear and an FD e-shaft...
I'll be firing mine up this fall and I built my engine with 8 stat gears and an 8 e-shaft.. hoping they work better together..
Just thinking out loud, but wouldn't this be a known/recall item from the rx-8's if it were a result of only the seal? Or perhaps its due to mixing an 8 seal, with an FD gear and an FD e-shaft...
I'll be firing mine up this fall and I built my engine with 8 stat gears and an 8 e-shaft.. hoping they work better together..
#22
Original Gangster/Rotary!
iTrader: (213)
I can't help but wonder if the leaks aren't caused by install error, rather than seal design.
Just thinking out loud, but wouldn't this be a known/recall item from the rx-8's if it were a result of only the seal? Or perhaps its due to mixing an 8 seal, with an FD gear and an FD e-shaft...
I'll be firing mine up this fall and I built my engine with 8 stat gears and an 8 e-shaft.. hoping they work better together..
Just thinking out loud, but wouldn't this be a known/recall item from the rx-8's if it were a result of only the seal? Or perhaps its due to mixing an 8 seal, with an FD gear and an FD e-shaft...
I'll be firing mine up this fall and I built my engine with 8 stat gears and an 8 e-shaft.. hoping they work better together..
"Hell no! Why would I sell you an RX-8 part for your RX-7, when the RX-7 parts works perfectly fine and is still available from Mazda? Hell No!"
Anyone who knows the man will be laughing, because that's exactly the way he talks
#23
F'n Newbie...
iTrader: (6)
Is the oil pressure (base and max) that different between an FD and rx-8 that the later design would be that prone to failure?
#25
F'n Newbie...
iTrader: (6)
Originally Posted by Rich
I mean, what's next? FB tension bolts, rx-2 corner seal springs?