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Forum locked  This topic is locked, you cannot edit posts or make further replies.  [ 4 posts ] 
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 Post subject: Timing gear - to the Doc
PostPosted: Wed Feb 13, 2002 6:26 am 
So Doc, did I damage anything taping the timing
gear on the crank like I did? (ref: post on
monday). I didn't know the heating up trick.

Thanks
Mike

mike.j.moser@boeing.com


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PostPosted: Wed Feb 13, 2002 7:52 am 
Quote:
: So Doc, did I damage anything taping the timing
: gear on the crank like I did? (ref: post on
: monday). I didn't know the heating up trick.


#3 main bearing, thrust surface, front side.
Check the end play in the crank, more then .008 and I would take a look at that surface.
Is the oil pan already on?

The proper damper installation tool and some heat installs these quick and easy.(If you must "tap" on a damper, always stand the engine assy on end, with the crank flange resting on a solid surface, like a concret floor. Use a piece of hardwood or soft metal to tap on and never hit the outer ring)


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PostPosted: Wed Feb 13, 2002 9:18 am 
Hey Doc, can you pull just the #3 main bearing
cap to inspect the bearing, or do you have to
loosen all the caps to re-torque??

Thanks
Mike
Quote:
:
: #3 main bearing, thrust surface, front side.
: Check the end play in the crank, more then .008
: and I would take a look at that surface.
: Is the oil pan already on?
:
: The proper damper installation tool and some
: heat installs these quick and easy.(If you
: must "tap" on a damper, always
: stand the engine assy on end, with the crank
: flange resting on a solid surface, like a
: concret floor. Use a piece of hardwood or
: soft metal to tap on and never hit the outer
: ring)



mike.j.moser@boeing.com


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PostPosted: Wed Feb 13, 2002 11:46 am 
Quote:
: Hey Doc, can you pull just the #3 main bearing
: cap to inspect the bearing, or do you have to
: loosen all the caps to re-torque??


It is OK to just remove, check and retorque a single main cap assembly.

Look carefully at the side thrust face, see any displaced (smashed) babbit? Also measure the thickness of each side with a micrometer.
DD


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