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The crankshaft pulley is sticking out further than all the other pulleys and the belt has come off.

Tiny
TERRYTHETAZMAN
  • MEMBER
  • 1998 CADILLAC DEVILLE CONCOURS
  • 130,000 MILES
Went to start the engine and heard a squealing noise. Turned off motor and found the belt had come off. Looked over the engine to find all the pulleys were aligned but the crankshaft pulley is out 1/4 inch more than all others. The engine starts fine with no noise at all. Is the problem the harmonic balance / dampener.

Pls Help
Terry.
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Thursday, November 10th, 2011 AT 5:46 PM

3 Replies

Tiny
BILLYBOB
  • MECHANIC
  • 27 POSTS
Theres probably a set screw to keep it in line and tite! Take ablock of wood put it against the harmonic balancer & try to tap it back into place. Check 4 aset screw if you find one tighten it up replace the belt and see if that works for you?
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Thursday, November 10th, 2011 AT 6:18 PM
Tiny
CARADIODOC
  • MECHANIC
  • 33,737 POSTS
Never heard of or seen a set screw on the vibration damper. Suspect it has broken the rubber insert between the hub and outer ring. On many dampers, the pulley is the outer ring. The only fix for a broken rubber insert is to replace the entire assembly. The parts stores have catalogs listing hundreds of dampers because this is a fairly common problem.
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Thursday, November 10th, 2011 AT 6:45 PM
Tiny
CADIEMAN
  • MECHANIC
  • 3,544 POSTS
A squeeling noise is usally caused by a pully locking up. Check all the pullys
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Thursday, November 10th, 2011 AT 7:50 PM

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