Should my pilot bearing look like this??

[rcfanatic]

Or do I need to drive it as far as it can go within the crankshaft?

[rcfanatic]

Anybody? I know a lot of you know the answer to this..

[scottinAZ]

not limited to BMW, but when installing a pilot bushing or bearing, I seat to the bottom of the crankshaft bore. This will NOT allow the bearing to become a hang up point putting side load on the input bearings and the pilot bearing.

[CorvallisBMW]

Needs to go in further. It does NOT sit flush with the flywheel

[jeffw]

+1 in more. not much more i believe but more

[rcfanatic]

Thanks guys.. should have pressed it in further when I first thought of it. Whole day down the drain...


Edit: By the way, in case anyone else has this problem I did drive it in further with a 15/16" socket and that did the trick. Specifically I pressed it 0.510"

[MR 325]

Yes, all the way in.

[blocke]

Ok, flamebait question here..but what IF you don't push it in all the way, and had left it flush with the FW? Would everything still assemble correctly? What would be the negative affects afterward?

[rcfanatic]

The input shaft will attempt to press the bearing from its inside diameter, it will be extremely difficult or impossible to get the transmission to mate with the engine, and it will probably ruin the bearing

[scottinAZ]

The input shaft will attempt to press the bearing from its inside diameter, it will be extremely difficult or impossible to get the transmission to mate with the engine, and it will probably ruin the bearing

BINGO. not only that, but if by some miracle it does seat, it will also thrash the input shaft bearing on the transmission. Mucho easier to not screw it up, and just seat the damn bearing