Getrag 240 input shaft bearing correct?

[Elhart]

So doing a M42 G240 swap into a 75 2002. The tranny  input shaft seal was leaking badly so decided to replace. Removed housing cover and seal was indeed trashed. Having never been here before I noticed the ball bearings and roller beatings seemed odd. See pictures Should there be more balls bearings in the race? Also the roller bearings behind the ball bearings appeared to be very loose. Is this wrong or right? Of course the guy I bought the tranny from said it was good and he ran it in his car with no problems prior to doing and LS swap.  Thoughts?

[tech71]

Oh thats wrong, no wonder the seal was trashed.

The missing bits are probably in the bottom of the case.

Drain the oil and see what comes out.

BMW PN 23121224375 appears to be NLA, other internal  damage is to be expected.

That gearbox is most likely "not economically feasible to repair" Sorry

 

Edited March 16, 2021 by tech71

[TobyB]

yeah, that's no good...

 

t

 

[Elhart]

Thanks Kinda what I thought. Will drain the oil tonight. Guess I bought a boat anchor

[tech71]

4 hours ago, Elhart said:

Of course the guy I bought the tranny from said it was good and he ran it in his car with no problems prior to doing and LS swap.  Thoughts?

From the looks of it that seems unlikely.

[Elhart]

So drained oil not to big of chunks.  Just seal junk. Wonder where the parts that hold the ball bearings went.  Texted seller said all was good.  I musta bought it just in time 

[tech71]

That may be bits of the bearing cage that has disappeared from your bearing, close inspection of a similar bearing for a G245 shows that the ball bearing cage that retains and spaces the balls is indeed, plastic, nylon, teflon, whatever.

Geez, when did that happen? bearing cages should be made from brass...right?

Good luck, there's a few on Ebay but be selective. Some jokers selling them  there don't even seem to know what they fit.

Post an ad in the Parts Wanted section here as well, ya never know.

 

Edited March 17, 2021 by tech71

[Son of Marty]

The big question is where are your balls and rollers I'm pretty sure the can't come out the front so must have gone into the gear box, also you can barely see it but it looks like the input shaft splines have a lot of wear, can you post a picture of it? 

[2002iii]

I took apart a for parts 245 recently that looked a lot like that. When I opened the case the roller bearings came falling out. The rollers destroyed the input gears and left a bunch of metal and plastic in the bottom of the case.

 

Your probably better off getting another transmission rather than rebuilding this one. The parts to fix this one will cost more than a good used transmission.

[Elhart]

On 3/16/2021 at 10:08 PM, Son of Marty said:

The big question is where are your balls and rollers I'm pretty sure the can't come out the front so must have gone into the gear box, also you can barely see it but it looks like the input shaft splines have a lot of wear, can you post a picture of it? 

Well I know where two of my balls are but not the rest of them. Might just split that thing apart just to learn

[Elhart]

12 minutes ago, 2002iii said:

I took apart a for parts 245 recently that looked a lot like that. When I opened the case the roller bearings came falling out. The rollers destroyed the input gears and left a bunch of metal and plastic in the bottom of the case.

 

Your probably better off getting another transmission rather than rebuilding this one. The parts to fix this one will cost more than a good used transmission.

Yup. On the hunt for a new one