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Mon Sep 28, 2009 6:53 pm

I did a search and didn't find an answer I understood. I'm trying to find the end play in an engine I just bought - the engine is in unknown condition. The flywheel is off - in fact, I received the flywheel and the engine from entirely different sources, so they're used and not a mated set.

So, how can I check end play? I looked through the Muir book - I don't have the Bentley manual.

Stray

Mon Sep 28, 2009 6:59 pm

You can't with the flywheel off.

You need to remove the flywheel seal and all the shims. Then install the flywheel and measure the distance from maximum inward and outward of the flywheel. Then add a combination of 3 shims that gives you .003-.007" endplay. If you can't get it that low then you have a worn engine.

Thu Oct 15, 2009 2:57 pm

I haven't installed a flywheel to test it, but I found out I can move the crankshaft in and out of the engine about 1/8" by hand, with little resistance - all the case studs are tightened, one head is removed. Am I missing something, or is this case toast?

Stray

Thu Oct 15, 2009 3:00 pm

worn bearings and/or case, only a tear down will tell all.

EDIT:

YOU CAN
ONLY
CHECK
ENDPLAY
WITH A
FLYWHEEL
INSTALLED

Thu Oct 15, 2009 3:01 pm

The crankshaft endplay is set with the flywheel and those shims. The crank will flop all over until you get them put on.

Thu Oct 15, 2009 3:26 pm

Thank you - I'm delighted to be wrong.

Stray

Fri Oct 16, 2009 11:16 am

I just bought a baja with a bus 1600 in there and it has no end play. HOWEVER. the shady f*** I bought it from would be capable of pulling any sort of maneuvers. Could someone put excessive shims to 'hide' end play? If so is this something that could cause a problem that I should check if the engine is already on the floor?

Fri Oct 16, 2009 11:23 am

^ It would be 'normal' for someone to think they're fixing the endplay by just adding more shims 'til the crank didn't clunk.

You should pull the flywheel off and see if the bearing is moving in the case...if it is, there's a move you can do to buy some time without tearing it all down...but if the bearing seems to be tight you can adjust the endplay to factory specs, maybe a little loser if you're suspect.

Make sure to use the correct endplay shims when setting endplay, early shims will physically fit on a late crank, but they hula-hoop around cutting right into the crank.

Tue Oct 20, 2009 2:08 pm

Stray Catalyst wrote: I did a search and didn't find an answer I understood. I'm trying to find the end play in an engine I just bought - the engine is in unknown condition. The flywheel is off - in fact, I received the flywheel and the engine from entirely different sources, so they're used and not a mated set.

So, how can I check end play? I looked through the Muir book - I don't have the Bentley manual.

Stray u can check it with a piece of 3/8 threaded rod 4 nuts and a big washer lock the rod to the case where an engine bolt goes. set a second nut just about even with the flywheel , check it with a straight edge, put on another nut and washer push flywheel in. put feeler guage between washer and flywheel. pull flywheel out check distance with feeler guage again subtract differrance. if 4 thoudsants or less your in if more than 5 thoudsants your

Tue Oct 20, 2009 3:32 pm

buckwheet wrote: ... if 4 thoudsants or less your in if more than 5 thoudsants your fucked

Factory spec. is 0.0027" to 0.005" - but many prefer to set it up a little looser in favor of tighter - maybe as much as 0.008" - not my fancy.

Tue Oct 20, 2009 4:22 pm

The Factory spec is 0.07 to 0.13mm (.0027 to .0051), the wear limit is 0.15mm (.0059).

Buy and use this tool to set up the end play:

We were taught to set end play to the mid point of the specs:

0.10mm (.0039)