Yes belt tensioners can overheat, especially if the belt is worn or new and slightly out of line. Fortunately most of them have very common bearings and any commercial bearing shop can sell you one for a quarter of the cost of the whole tensioner.
If the bearing for the pulley is failing the assembly could get hot and seize up.
The bearings in the pulley can.
This is a serpentine belt that runs all of the pulleys on the front of the engine. There is a separate tensioner pulley and not one for the water pump alone. A bad tensioner will allow the serpentine belt too much slack which will allow the belt to slip and yes, the engine can overheat as a result.
there are two tensioners, the serpentine tensioner and the timing belt tensioner. the timing belt tensioner is behind the timing belt cover ;)
there is no repair for a belt tensioner. just buy a new tensioner. remove old belt, remove old tensioner, it is held on with one bolt. install new tensioner. install new belt
The easiest way to test a belt tensioner is to pull upward on the belt. The belt should be tight with very little slack if the tensioner is working.
auto store usually special order for a timing belt tensioner or belt tensioner
u do not adjust belt tensioner if belt is loose, u need to replace belt as tensioner works automatically
Worn belt or belt that has stretched to the point the tensioner cannot keep the proper tension. The tensioner can also be defective. Replace the belt and the tensioner.
You should not have removed the tensioner to install the belt. It has a pivot point that and can be moved in order to release the tension on the belt. Once you install the new belt, leave it off the tensioner until last, pivit it and install the belt oner the tensioner.
your serpentine belt came off probably I just bought a 1996 Eldorado with this same problem. The car won't overheat because there is another belt and tensioner on the other side of the engine for this. Check the belt tensioner the spring probably broke causing the serpentine belt to be loose and fling off.
It could be but the accessory belt could also be a v-belt type belt.
To re-install a belt tensioner for a 1987 Ford Taurus, tighten the bolt when the tensioner pulley is holding the serpentine belt tight. The belt tensioner sits in a slot and can be adjusted to hold the belt tight.
You can adjust the belt tensioner by loosening the tensioner bolt. When the tensioner bolt is loose the tensioner pulley can move back and fourth.