Join Date: Mar 2002
Location: New Lenox, IL USA
Having trouble with throwing my alternator belt at higher rpm's. I have work on pulley alignment and think I am pretty close but it still trhrows the belt so I thought I would put a larger diameter deep groove alternator pulley to see if that would help the problem. I bought a Moroso 5" pulley that is supposed to be for GM/F**D alternators and the problem is after you install the factory spacer and fan and then the new pulley you it winds up flush with the end of the shaft with 0 room for the nut. Called my local speed shop where I bought it and all he could tell me was they sell a ton of them but I would have to call Moroso tech for any more info. I am sure I am not the first to run into this so what gives?? What an I not seeing or is there some additional parts needed like and new fan?? Thought I would try here first since it is too late to reach the tech line out east today. It is a standard mid to late 70's GM 3 wire alternator with a built in regulator.
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