Quote:
Originally Posted by 951mat
Underdrive pulleys, my pulley on the crank shaft is ~5.5 inches, the one on the pump is same or 6" max. Are these actually underdriven sizes?
Mat
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yes they are, you need the water pump pulley to be 1 to 2 inches smaller in diameter than the crank pulley, that way you are overdriving the water pump slightly.......if they are the same size, and I'm guessing they are, you should still be o-k, but at the limit......
If you're seeing the water temp gauge at 180 after only 3 minutes of running, there is something wrong, should take at least twice that if not more...for the upper hose to warm up soo quickly, could it be possible you have a reverse rotation water pump?????????? the upper hose should not warm up until the thermostat opens and sends hot water thru it to the radiator.......
something out of wack here, big time........
David