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1978 Porsche 911 SC alternator belt
Replaced alternator belt and it snapped in half again. Cloud of smoke etc.... Car still starts so I don't think its alternator. Any ideas? Thanks in advance. Only 3 shims on bolt could lack of shims cause problem?
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11-05-2009, 08:44 AM
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Model Citizen
Join Date: May 2007
Location: The Voodoo Lounge
Posts: 18,876
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you need a total of six shims.
snapped in half?
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"I would be a tone-deaf heathen if I didn't call the engine astounding. If it had been invented solely to make noise, there would be shrines to it in Rome" |
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11-05-2009, 08:50 AM
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Does the alternater turn freely?
It should turn easily without the belt on.
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Pete 79 911SC RoW "Tornadoes come out of frikkin nowhere. One minute everything is all sunshine and puppies the next thing you know you've got flying cows".- Stomachmonkey |
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11-05-2009, 08:53 AM
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How do I determine if alternator is turning without belt on?
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11-05-2009, 03:36 PM
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Formerly known as Syzygy
Join Date: Mar 2008
Location: Calgary, AB
Posts: 4,420
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Turn the pulley with your hand. If it turns, then the alternator is turning. If it doesn't then no, it is not turning.
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Kevin 1987 ROW coupe, Marine blue, with a couple extra goodies. The cars we love the best are the ones with human traits, warts and all. |
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11-05-2009, 03:41 PM
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Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,481
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That belt is one of the 9.5x725, 77to 79 was the odd size
Bruce |
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11-05-2009, 04:36 PM
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Join Date: Oct 2005
Location: Capistrano Beach, Ca.
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You need to clarify things just a bit, after confirming the alternator is not seized.
As herr_oberst said, you need six shims, total, in some combination--between the pulley halves and between the bolt and outer pulley. You said you have three. Is that three total, or three between the outer pulley and the bolt? Do you have all six shims? As Bruce posted, do you have the correct belt? What size is the one that broke? Yes, improper number of shims can cause your problem. Let us know what you have.
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L.J. Recovering Porsche-holic Gave up trying to stay clean Stabilized on a Pelican I.V. drip |
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11-05-2009, 05:03 PM
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1979 Porsche 911SC
