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Old 07-02-2008, 12:04 PM   #1
sc95auto
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Default belt tensioner/removal of serp belt

i want to make sure i am not screwing this up. i turned the nut in the center of what i assume is the belt tensioner to remove the serp belt and rather than the pulley moving to release the tension the nut rotates. if i turn the nut counterclockwise it adds tension to the belt. but if i turn it clockwise the nut just rotates. whats the deal? if i keep turning it clockwise will it eventually loosen the tension so i can remove the belt?

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Old 07-02-2008, 03:30 PM   #2
Bill Murray
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Default Re: belt tensioner/removal of serp belt

I've never seen any nuts on the tensioner.
Normally there is a bolt with a large washer under the head attaching the pulley to the tensioner arm.

Assuming that's what you're wrenching on, it sounds like the bolt (or the mating threads in the arm which is more likely since that's aluminum) is stripped. I'd suggest cutting the belt off and installing a new tensioner which threads into the engine front cover with two bolts. Be careful to torque these to spec, if those get stripped, it's bad news.

FWIW I always remove the engine mount (with a floor jack under the engine oil pan) because you can improve access to the engine depending on whether it is jacked up or lowered down. Also don't be shy about using a pry bar or 2x4 to shove the engine/trans towards the driver side for more clearance.

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Old 07-02-2008, 03:45 PM   #3
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Default Re: belt tensioner/removal of serp belt

Quote:
Originally Posted by sc95auto View Post
i want to make sure i am not screwing this up. i turned the nut in the center of what i assume is the belt tensioner to remove the serp belt and rather than the pulley moving to release the tension the nut rotates. if i turn the nut counterclockwise it adds tension to the belt. but if i turn it clockwise the nut just rotates. whats the deal? if i keep turning it clockwise will it eventually loosen the tension so i can remove the belt?
Well, thanks for confirming what some of us other novices have uncovered - it is not as easy as others make it appear. I tried to play with the tensioner once just to see if I was on the right track thinking that I might try to replace the belt myself one day. That tensioner sure seems to be VERY tight in holding that belt in place as I didn't appear to loosen it at all after giving it a good tug.

Ever looked at Richpin06's videos? He can remove and install one in about two minutes - three tops.

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