Visit The Dirt Forum for More Information

Author Topic:   crank endplay
bryanb30
Member
posted November 25, 2003 06:58 PM
is it new parts or old ? I had a new crank that was not finished right where the thrust surface was. I had to polish the crank with crocus cloth to remove lines from machining. That was 2 years ago.I also went to a federal mogul bearing that was made different so it held the oil better on the thrust surface. If your running a manual and the clutch is adjusted to tight that can play hel on a thrust bearing to.


66jj
Member
posted November 25, 2003 08:51 PM
It should move back and forth a little.



dirtbuster
Member
posted November 26, 2003 08:25 AM
It should move a little but on the order of .005" so if you can feel it its worn out. Id try a new bearing first and see if that helped but could also be the crank.


dan ferry
Member
posted November 26, 2003 06:51 PM
the on and off the gas is hard on thrust bearings and cam bearings. my opinion is end play comes the most from throwing new bearings in and using an old crank that looks ok maybe getting it polished up looks good but the thrust is worn and will get alot of end play when assembled or once its ran awhile and the bearings break in. if tou get the crank cut and the bearings oversized for the crank end play should start out at specs always check it when assembling. good luck to all.


rico 08
Member
posted November 27, 2003 06:06 PM
I can't remember ever having an engine where you could check the endplay with just your hands,when checking it when assembling an engine you have to pry it back and forth with pry bars,something is bad wrong to say the least.


hamer36
Member
posted November 29, 2003 04:21 PM
Something like the wrong clearance between the tranny (glide) coupler and the crank hub. With the tranny bouncing around back there , the crank thrust could be seeing pressure every bump. When you use the clutch, the thrust comes into play, so in a line up, put it in neutral rather than holding the clutch in for long times.


Back to the Archives