MY SERPENTINE BELT KEEPS BREAKING SHREDDING

1995 Ford F-150

Tiny

Joeski62

April, 10, 2013 AT 10:10 PM

My serpentine belt keeps breaking (shredding). I've changed the Tensioner Pulley but I'm on my fourth belt. I notice my crank shaft pulley is moving up and down while running. Should my crank shaft pulley run true and smooth or is the movement from the harmonic balancer. What can be causing my belts to break?

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5 Answers

Tiny

ASEMaster6371

April, 10, 2013 AT 10:16 PM

Did you replace the tensioner or just the pulley?

The balancer should be true running

Roiy

Tiny

Joeski62

April, 10, 2013 AT 10:30 PM

I changed the whole tensioner assy. Now my belt keeps jumping a tooth on the crank shaft pulley. My Harmonic balancer is behind the crank shaft pulley so if its not running true I should change the balancer?

Tiny

ASEMaster6371

April, 10, 2013 AT 10:32 PM

Thats correct

Roy

Tiny

Joeski62

April, 10, 2013 AT 10:50 PM

I was told there would be play because of the rubber bushing on the balancer which didn't sound right to me. I know what I'll be doing this weekend. Thats the last thing I have left to change. Thank you for your quick response

Tiny

ASEMaster6371

April, 10, 2013 AT 11:08 PM

No play allowed. Dont know who told you but that is in correct info

Roy

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