The tensioner pulley isn't your best bet for the last one because the belt goes around close to 180 degrees of it. You'd have to pull both sides of the belt up 1/8th inch to reach 1/8th inch higher. That means stretching the belt 1/4 inch. Look for a non-ribbed pulley where the belt doesn't contact so much of it. There's usually another idler pulley where to raise the belt 1/8th inch you will only be stretching it a tiny fraction of that amount.
Also, every time I've run into this problem, I've found I didn't have the belt centered on one of the ribbed pulleys. A longer belt isn't the answer. An extra half inch can make some tensioner pulleys become almost fully-released and at the end of their travel.
Saturday, June 18th, 2016 AT 10:07 PM