Quote:
Originally Posted by Devil Pup
the motor was mine just rebuilt. so all new seals and heads. the only thing i changed was the pulleys. i went to aluminum with dual belt because i put ac on. and it has a short pump on it with the alternator on the driver side. I don't quite understand what you mean about the clutch rpm spinning. i have no clue when it comes to the clutches to be honest.
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I guess nobody is reading my posts, but I will try one more time since I can sympathize with heating issues. You say you went to aluminum pulleys. These are almost always underdrive pulleys, which means the crank and water pump pulleys are the same diameter. Oem pulleys usually have the water pump pulley smaller than the crank pulley to obtain the proper ratio to keep the water pump spinning fast enough to move the water through the system. I know you changed these pulleys with the new motor and the old motor overheated with the old pulleys but I still don't know what kind of pulleys you had prior to the rebuilt motor. I would suggest that you use a smaller water pump pulley, about 6 inches or less in diameter, and a larger crank pulley, as close to 8 inches as you can find. At least you will then have optimized the water pump rotation speed.