Last week, I installed all three new belts on our '93 80. These were Toyota belts, and the alternator/PS belts were matched. I tensioned them by hand.
Yesterday I drove it for the first time and noticed a whine that follows engine RPMs. It sounds like the sound of a water pump going out, or similar small bearing. The belts feel a tad looser than when I put them on, and the two little idler pulleys that push against the inside of the belts between the alternator and crank pulley on the left side of the engine don't seem to be pushing with any gusto. Do those move or are they adjustable? They seem to simply be there to prevent any belt wobble as opposed to actual tension - correct? To my eye, they seem solidly mounted and NOT adjustable - correct?
At any rate, I'm looking for guidelines for how much tension to put on them when I adjust them. Someone once mentioned here they adjust them until they can no longer twist the belt more than either 90 or 180 degrees (can't remember now) by hand. I definitely did not put too much tension on them initially, so ruling out any accessory bearing damage in a week's time. I suspect they're too loose.
What say ye?
IdahoDoug
Yesterday I drove it for the first time and noticed a whine that follows engine RPMs. It sounds like the sound of a water pump going out, or similar small bearing. The belts feel a tad looser than when I put them on, and the two little idler pulleys that push against the inside of the belts between the alternator and crank pulley on the left side of the engine don't seem to be pushing with any gusto. Do those move or are they adjustable? They seem to simply be there to prevent any belt wobble as opposed to actual tension - correct? To my eye, they seem solidly mounted and NOT adjustable - correct?
At any rate, I'm looking for guidelines for how much tension to put on them when I adjust them. Someone once mentioned here they adjust them until they can no longer twist the belt more than either 90 or 180 degrees (can't remember now) by hand. I definitely did not put too much tension on them initially, so ruling out any accessory bearing damage in a week's time. I suspect they're too loose.
What say ye?
IdahoDoug