2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
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Belts whine SO MUCH

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Old 06-07-03, 08:42 AM
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Belts whine SO MUCH

On my poor FC, after the ex-mechanic worked on it the belts whine like hell. (I hope he only over tightened them). From about idle to 3k you cant hear it outside of the car. Once I hit 3k+ the whining is almost louder than the exhaust note. (And im running a straight pipe). The stupid mechanic put a bolt in my fan clutch but I dont think thats the reason it whines. Any help?
Old 06-07-03, 09:25 AM
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Might be too loose.
Old 06-07-03, 10:07 AM
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how do I tighten/loosen belts?
Old 06-07-03, 10:18 AM
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Yeah you need to check belt tension. If they are too tight it will cause your water pump, and alt to fail early.

The factory owners manuals as well as the serivce manuals have how to and what to adjust on the belts.
Old 06-07-03, 10:22 AM
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any idea what section its in in the FSM
Old 06-07-03, 10:25 AM
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Probably the first, with oil changes and the like.

In the owner’s manuals that come in the glove boxes of the FC, the belt adjustment is usually around 6-15.
Old 06-07-03, 10:28 AM
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yea can't find it lol
Old 06-07-03, 11:03 AM
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Originally posted by BonsaiRX7
yea can't find it lol


Try the index
Old 06-07-03, 11:11 AM
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Section 1-7 in the 88 FSM
Old 06-07-03, 11:31 AM
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Oh... and be careful not to overtighten the Alt. belt.. it can damage the bearings in the alternator, (now mine makes noise... ) and it will seize, putting enough drag on the engine to stall it at idle... (or make it not start at all... ...ask me how I know... and what I learned while sitting at the side of the road... )
Old 06-07-03, 01:56 PM
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Mine does that too...maybe its time for some new belts...cant cost more then 20 clams eh?
Old 06-07-03, 02:19 PM
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Possibly the belts were too loose, so the mechanic tightened them to specs which caused the whinning. You can apply belt dressing (temp. solution, same as spray) to quiet it down, or just figure it's time for a belt replacement.
Old 06-07-03, 06:05 PM
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I can clearly see that its the alt belt that is loose, how do I tighten it, the FSM just says Adjust as neccessary. IM A NEWBIE!
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