[gryphon]

I had my alternator belt (OEM) replaced by an independent mechanic a few months ago, thereafter could not drive my 968 due to an undiagnosed DMW relay failure. When I finally got it running the alternator belt squealed like crazy. The mechanic is unavailable for a month or longer to check/adjust the tension. Can I get some advice on how to adjust it, what tension, and if it requires jacking the front end?



Thanks in advance.



Tom

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[jpk]

The tension on the A/C and Alternator belt is set with a turnbuckle type thing that sets the distance of the A/C compressor from the crank. It's pretty straight forward to adjust, just loosen the jam nuts on each end of the center bar, then you turn the center bar to adjust the rod length. Once you're done, tighten the jam nuts back up.



Everything is done from underneath; it'll be much easier to do if the front end is up on ramps or jackstands.



The shop manual says to use the tension tool like on the balance shaft belt, but you could probably tighten it up a bit just to see if it helps (I wouldn't go much more than a couple of turns though)

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[sasilverbullet]

be careful to loosen ALL the mounting bolts of the A/C compressor. There are two up on top of the compressor that are hard to get to/see.



If you don't, you'll be able to adjust a little, but you'll be putting tremendous strain on the turnbuckle assembly.

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[flash]

i concur with loosening everything first - too many people have not done that and ended bup buying a $600 compressor because the shoulder broke from the strain

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[SILVY968]

I have had the squeal from the belt due to a bit of steering fluid getting on the belt. Hoses go in this weekend. A temp fix that I used while hoses were on order was to rub a candle on the belt....stops right away.

This does not replace setting the correct tension on the belt, but might keep you from hearing the squeal until you can get to it.

Brian

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[doster]

mine were squeeling only when it was cold at startup and no matter how i adjusted

um it would still make the noise.

I noticed the pulleys were glazed over and used some 220 sand paper to clean them

up, problem solved!

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[gryphon]

Thanks for all the advice. I have a new project.



Tom

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