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Horrible grinding noise when starting but not when running

Tiny
CARLABROWN11
  • MEMBER
  • 1979 CHEVROLET SILVERADO
I have a 1979 k10 Chevy pickup. Ive gotten 3 different starters because I thought that the horrible grinding noise was coming from the starter grinding on the flywheel. But the flywheel has absolutely no chips in it at all. It also dont grind when its running. So I had someone turn it over while I was looking at it. And the flywheel turns real slowly and the starter lines up perfectly with the flywheel so it cant be that. What else would it be?
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Wednesday, July 18th, 2012 AT 5:36 AM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Flywheel may be worn out. Also, did you use the correct shims when installing the replacement starter motors?

Roy
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Wednesday, July 18th, 2012 AT 10:48 AM
Tiny
CARLABROWN11
  • MEMBER
  • 5 POSTS
I just put that flywheel in about 4 months ago. And yes I used the right shims.
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Wednesday, July 18th, 2012 AT 4:57 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
It definitely either a flywheel or alignment issue. The gears can be good but worn. Did you use a new or used flywheel?

Roy
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Wednesday, July 18th, 2012 AT 6:46 PM

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