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Richard
Richard, ASE Certified Technician
Category: Car
Satisfied Customers: 13786
Experience:  12 years Ford Lincoln/Mercury Jaguar dealership as a technician and shop foreman reparing all makes
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1998 xk8: my serpentine belt..belt keeps jumping..all the pulleys

Resolved Question:

I have a 1998 xk8 and my serpentine belt keeps jumping off I checked all the pulleys and they are straight and spin free.
Submitted: 5 years ago.
Category: Car
Expert:  Richard replied 5 years ago.

Hello and welcome to justanswr.com

Did the belt slip of before the idler pulley was changed?

Customer: replied 5 years ago.
Reply to Richard's Post: the idler pully bearing siezed causing the belt to shred. this is why i changed the pully and belt
Expert:  Richard replied 5 years ago.
Did the old pulley have lips on the edges of the pulley?
Customer: replied 5 years ago.
no they were smooth
Expert:  Richard replied 5 years ago.
You may have to shim that idler pulley. Install the belt and rev the engine. If you see the belt wandering and looking like it wants to slide off that idler you will need to install shims or washers behind the idler where it bolts to the cover. This will push the pulley outwards and the belt will not slip off.
Richard, ASE Certified Technician
Category: Car
Satisfied Customers: 13786
Experience: 12 years Ford Lincoln/Mercury Jaguar dealership as a technician and shop foreman reparing all makes
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