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Post alternator belt tension

I replaced the alternator belt on my 951. It goes around the engine pulley and the AC. Do I need a soecific tool to get the right tension. It squeals when I startup.


John

Old 06-05-2001, 09:26 AM
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How did you tension it? From experience elsewhere, there should be about 1/2" deflection on the long axis (between the AC and the crank.) There is a special tool made to get the absolute correct tension every time, but it's not really needed. Just when you check it, don't use the Schwarzenegger finger method.

Dave951M
Old 06-05-2001, 03:07 PM
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[QUOTE]Originally posted by White951:

Hi white sounds like the belt is loose it should be tight remember that if you have run the battery down then the charging system will be working very hard IE the alt will be resisting turning as the drain to recharge the battery will be greater than when it is charged.........Stan
Old 06-05-2001, 08:41 PM
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No you don't really need a tool to make it work just tighten it until it stops squeking it is not as critical as the timming belt.

If you perfer you can use a straight edge a ruler, and a spring scale like what is used to wieght fish. I'm not sure what the tension specs are. You don't want to over tighten the belt because it causes bearing wear in every thing the belt is going around. Also they make tools that will check the tension of V belts that cost around $20. If auto parts stores don't carry them you can check bearing supply houses or industrial supply stores. Or mail order

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Old 06-05-2001, 11:23 PM
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