[Bulk] Mating 4k tranny to 3b motor

[Louis-Alain Richard]

Vittorio,

Steeve is right. 

4k pilot bearing : 
046 105 313D, 
C18 x 24 x16

3B and upgrade for other engines (see service bulletin 1-70 from 2/1991):
034 105 313A
BK15 x 24 x 26

So the 3B pilot is probably 3mm smaller and 10 mm longer, hence your
insertion problems.

Time to destroy that brand new pilot bearing and install a proper one. Hope
it wasn't too expensive...

Louis-Alain


-----Message d'origine-----

... no direct BTDT on the swap you are doing, but I had a similar issue when
doing a clutch on a 4kQ.  A parts desk clerk convinced me that a particular
pilot bearing was a sealed cross reference to the open 4kQ part I poked the
new bearing into the crank and couldn't get the transmission to engage the
engine on reinstall ... this improved bearing was not a cross for the 4kQ
... 

The lesson I learned, and what I recommend to you is that you get a 4kQ
pilot bearing and test fit it to the pilot shaft on the tranny ... and then
see if it fits the crankshaft on your engine ... I'm pretty sure you will
find that it does.  

Steve Buchholz

-----Original Message-----

After struggling w/the 3b pilot bearing - finally getting it out and
putting the new 3B pilot bearing back into the motor - it seems that the
4k tranny input shaft is much larger than what the stock 3B motor is
expecting.

I believe I need to re-remove the 3B pilot bearing and install the 4k
pilot bearing into the 3b motor - will that work?