996 Transmission Rebuild and Pinion Bearing Replacement DIY
#61
#62
#63
Thanks to Porschetech3 it seems we've established that hunting for generic bearings in this application is futile. But we can still all rush to Quebec to buy the real deal at the best price :-).
This was a really useful discussion Ptech3, thanks for helping out.
But I am still puzzled why when the Google search using the *** part number on the bearing removed (572548C.H84 The dimensions are 72mm O.D. 35 mm I.D. and thickness 34mm. ) produces a hit -yet it is not the correct part.
http://ytgbearing.com/Product/showpr...ing-87290.html
I asked for a quote and will copy it to the Forum if I get a response.
Others have tried and failed:
http://forums.pelicanparts.com/porsc...-bearings.html
This was a really useful discussion Ptech3, thanks for helping out.
But I am still puzzled why when the Google search using the *** part number on the bearing removed (572548C.H84 The dimensions are 72mm O.D. 35 mm I.D. and thickness 34mm. ) produces a hit -yet it is not the correct part.
http://ytgbearing.com/Product/showpr...ing-87290.html
I asked for a quote and will copy it to the Forum if I get a response.
Others have tried and failed:
http://forums.pelicanparts.com/porsc...-bearings.html
Last edited by Schnell Gelb; 02-07-2017 at 01:11 PM.
#64
Unfortunately no deal from Porsche. The prices I got were for the mistake in post #16 of that thread :
https://rennlist.com/forums/996-foru...l#post13949960
The pinion bearing was much more expensive. I decided to buy it there anyway cause they have been kind taking back the wrong part without restocking fees when it was my mistake. I also won't have to wait for shipping.
https://rennlist.com/forums/996-foru...l#post13949960
The pinion bearing was much more expensive. I decided to buy it there anyway cause they have been kind taking back the wrong part without restocking fees when it was my mistake. I also won't have to wait for shipping.
#66
So I can tell from the design of those bearings they are actually a thrust bearing, which in itself is nothing special but this type of unitized design isn't common in industry, mostly automotive. I am quite certain are not going to follow standard ISO bearing dimensions by what I've seen from the earlier posts. What does that mean? Generally that means a person is SOL as the bearing manufacturer typically will make them proprietary to the OEM.
However, the earlier posts about these bearings being used in other applications (Volvo truck I think?) might give a chance for them to be available if a person is willing to dig and I might be that type of person.
I have personal friends with Schaeffler (***) and if there is a chance of getting these things at all, I should be able to find out as I am owed me some favors. Luckily one friend in particular is a bit of a car guy (Audi TT IIRC) so he might take a personal interest in it for me.
I'll do some research over the coming days and see what I can dig up. I am in the middle of a few big projects right now (both personal and professional.. just bought a new house!) so this won't be my #1 priority for a while, but I'll start the ball rolling.
AM, do you still have the old ones for me to look at if I need to? I'm in Alberta.
That is text-book spalling and that bearing was well underway to failure.
However, the earlier posts about these bearings being used in other applications (Volvo truck I think?) might give a chance for them to be available if a person is willing to dig and I might be that type of person.
I have personal friends with Schaeffler (***) and if there is a chance of getting these things at all, I should be able to find out as I am owed me some favors. Luckily one friend in particular is a bit of a car guy (Audi TT IIRC) so he might take a personal interest in it for me.
I'll do some research over the coming days and see what I can dig up. I am in the middle of a few big projects right now (both personal and professional.. just bought a new house!) so this won't be my #1 priority for a while, but I'll start the ball rolling.
AM, do you still have the old ones for me to look at if I need to? I'm in Alberta.
Latest news. I just finished pressing everything out from the secondary shaft. I succeeded with a max pressure of 25 tons. No problems at all. The bearing was out of grease which I never found inside. Probably because the previous owner had the transmission opened and got afraid of the job and closed it back like that but took away Porsche's magic grease before.
On the photo we can see the spot on the bearing race. It makes it sure that it was really the cause of the tranny noise.
As soon as I can I will make another thread on the complete disassembly of C4 transmission with a few tricks I found and used. With Nick Hends DIY it could help very much
On the photo we can see the spot on the bearing race. It makes it sure that it was really the cause of the tranny noise.
As soon as I can I will make another thread on the complete disassembly of C4 transmission with a few tricks I found and used. With Nick Hends DIY it could help very much
#68
When you won't need them anymore I could want to get them back maybe.
Let me know
#69
If it comes to that I'd just ask you to throw it on Puro collect on my account. The photos gave me a pretty good idea of what it is and with the #s on it, I hope my Schaeffler guys can work off them. Will let you know.
#72
Heard back from my *** friend. Both those 2 bearings are under no uncertain terms OEM and beholden to Porsche. If other applications use them, they are either under a different part # or actually aren't the same bearing.