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Old 09-08-2010, 04:22 AM   #1
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Default Engine question

I put new bearings in a vspec, and when I pull on the flywheel the crank has a small amount of play back and forth or in and out, just a very small bit (less then .5 mm). I have tried a new set of bearings, different case, different p/s/r, different collet, flywheel, and flywheel spacing. So does anyone have a clue what the issue may be? Will it go away once the bearings get seated a little better? I am at a loss.
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Old 09-08-2010, 04:31 AM   #2
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Just check that the play dissapears when you install the flywheel.
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Old 09-08-2010, 04:33 AM   #3
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Quote:
Originally Posted by manuelargentina View Post
Just check that the play dissapears when you install the flywheel.
It's with the flywheel on
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Old 09-08-2010, 04:45 AM   #4
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Thats not good man, take a look at the crankcase, maybe have some damage caused by older bearings.
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Old 09-08-2010, 04:47 AM   #5
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It is normal.
Because there is some flex in the crankshaft the bearing have to deal with it. As long there is no sideway play the bearing is fine.
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Old 09-08-2010, 05:02 AM   #6
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Thanks. My initial reaction is that it was bad. But the bearings are some of the smoothest I have ever had
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Old 09-08-2010, 08:37 AM   #7
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pull the crank forward push the collet back that will stop the play
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Old 09-08-2010, 01:22 PM   #8
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Quote:
Originally Posted by the daddy View Post
pull the crank forward push the collet back that will stop the play
+1
Usually tightning the flywheel with the nut will pull the crank snug against the bearings but sometimes you have to help it a bit by doing the above.
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