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Australian Falcons Discuss the australian born and bred models here. Includes the 80's 90's and present day Falcons offered by Ford Oz.

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Old 05-02-2009, 01:31   #1 (permalink)
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belts snapping on alternator/water pump pulleys

Hi, does anyone have any idea why the belts keep snapping on these pulleys?
We have changed the water pump pulley, which had some minor damage, and there is a horrible squeal that comes when the car starts.
The alternator is new, and we are currently looking that and the water pump over. The bearings have been checked and are fine too.
After the car has warmed up the squeal stops.
The belts seem to be getting chewed out from underneath, and yes, we have checked the tension (or he has, anyway).
I have no clue.
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Old 05-02-2009, 05:32   #2 (permalink)
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Re: belts snapping on alternator/water pump pulleys

Hi, my 393 Clevo went through a stage of throwing alt. belts because of quick rpm rise. The solution was to increase the alt. pulley size. Not by much , but thats all it needed. Be careful of tension too, as too much will cause belt stress/breakage.
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Old 05-02-2009, 15:43   #3 (permalink)
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Re: belts snapping on alternator/water pump pulleys

Hey, thanks for the suggestion, but it's a stock standard (and clapped out) eb falcon, so not much chance of it havng too many revs lol! I should have specified that earlier.
Thanks mate.
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Old 05-03-2009, 04:12   #4 (permalink)
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Re: belts snapping on alternator/water pump pulleys

For an update, the water was topped up in the battery, and the belt was done up tighter than before (to maybe 5mm play left on it).
Also have put a spare belt and relevant tools n the car just in case...
But it's much quieter now. We'll see f it works.
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Old 05-04-2009, 02:52   #5 (permalink)
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Re: belts snapping on alternator/water pump pulleys

Is the power steer pump on the same belt if it is it could be that not working right
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Old 05-09-2009, 16:35   #6 (permalink)
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Re: belts snapping on alternator/water pump pulleys

Not the same belt, but thanks anyhow. So far, have had no more trouble. Got a week of double the normal weekly k's so might change soon lol...
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