Quote:
Originally Posted by Bentwheelbob
Now that's an interesting thought that may explain a few things. Smaller pulley equals faster belt speed....The one common complaint about cars with the 80amp idler pulley is the issue of belt squeal. I wonder if this squeal might be more a function of belt speed instead of the idler pulley? I think I might try the 481040 pulley just to see what happens. The black car has always run cool, so I doubt the change in belt speed will have a material effect on engine temps.
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I believe That will put the adjuster on the Idler at its tightest setting, with same belt.. The 73 Water pump pulley is more common and used for many years after. With a 160 or 170 T stat , I would assume it will be fine