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Old 03-15-2012, 09:48 PM   #1
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Alternator and water pump

K just thinking about new alternators and water pumps for my 90 gt with underdrive pulleys. No smog pump. So I know I'm getting at least a 140 amp alt. But I heard that these cars have a reverse rotation something is it a reverse rotation water pump or alternator. I just want to make sure I buy the right stuff. I have AC and power steering .
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Old 03-15-2012, 09:58 PM   #2
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as long as you get the parts for your year you will be ok.i cant remember exactly but i think 86 and earlier are opposite rotation than ours.
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Old 03-15-2012, 10:06 PM   #3
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Re: Alternator and water pump

Reverse rotation water pump.My 86 has it too. I believe 85 and earlier carbureted engines had the standard RH rotation.
Look at how your belt is ran and notice the direction your WP will turn when the belt passes over its pulley.
Turning to the right is standard and to the left is reverse.
Yours should be reverse rotation.
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Old 03-15-2012, 10:10 PM   #4
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Quote:
Originally Posted by Trojan Horse
Reverse rotation water pump.My 86 has it too. I believe 85 and earlier carbureted engines had the standard RH rotation.
Look at how your belt is ran and notice the direction your WP will turn when the belt passes over its pulley.
Turning to the right is standard and to the left is reverse.
Yours should be reverse rotation.
yeah i think your right.i wasnt positive.
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