Setting the thrust bearing

i'm at that point in my 2.4 build where i'm dropping the crank onto the ACLs.

This is what i've been told to do:

drop in crank, tighten caps to 20ft/lbs, then back off to finger tight, then hit ends of crank with rubber mallet to align the thrust bearing. then tighten down the 4 outer caps to 49 ft/lbs. proceed to apply force on the crank with a prybar in the direction that the clutch would normally. while applying force tighten down the middle (thrust) cap.

any other random factoids people want to remind me to do so i dont screw this spendy piece of hardware up?

 

might want to check crank endplay while youre at it.
ive also always used either a lead hammer or a block of wood and a plain ol bfh. i dont think you will get enough force with a rubber mallet.

 

1. Lightly seat (10-20 ft/lbs) all of the caps.
2. Back off finger tight.
3. Wiggle crank around to get the end most caps aligned
4. Torque down each tied (1-2, 4-5) cap set to specification
5. Very lightly seat the #3 cap
6. Pry/tap it to the rear
7. Tap crank back towards front to align rear thrust surface
8. Torque #3 cap
9. Check to make sure thrust is not on low side of spec (indicates misaligned cap)
10. Check crank rotation after every final torque.

 

^^ Grocmax method /ubbthreads/images/graemlins/wink.gif

 

^^^ Nothing but!

Works like a charm. I've done three stock rebuilds and all of them have at least 5k on them, one is over 10k.

~Mark

 

[turboflanagan]

Quote:
^^ Grocmax method /ubbthreads/images/graemlins/wink.gif



Geez!! I have not seen his name in a loooong time.

 

can someone explain why this must be done? i did it, but i didnt really see what difference it made when i built my motor