How do you tighten a alternator belt on a Mitsubishi Montero?

RE: alternator belt tightening there should be a bolt right in the center of the pulley.. loosen (do not remove)…Then underneath the suv.. Lay on your back..and look upunderneathfor a bolt that is connectedto the tensioner pulley you just loosened.. Tighten (Turn it clockwise) the belt should tighten..

What does it sound like when a tensioner pulley is bad?

When the tensioner or tensioner pulley fails, the loss of tension can cause the belt and pulleys to make high-pitched rattling or chirping noises. If the pulley bearing completely fails, it can also cause a squealing or even a grinding noise. Symptom 2: Knocking or slapping. This can cause a slapping or knocking noise.

Can you over tighten an alternator belt?

Dear Anthony: A belt should never be over-tightened. An over-tightened belt can burn out any bearing that the belt rotates on, including alternator, power steering pump, A/C compressor, idler pulleys, etc. An over-tightened timing belt can ruin any pulley bearing it is connected with.

How much does it cost to tighten an alternator belt?

You want to be able to press down on the belt at a mid point between two pulleys and only be able to move it downward about 1/8 to 1/4 inch. When you have the alternator in the right position, have an assistant tighten the top bolt and nut to lock the alternator in.

What noise does a bad pulley make?

When the engine is idling, a bad pulley may make a squealing sound. This is due to the bearings in the pulley going bad. The bearings may also make various other sounds such as clattering or even a rumbling sound, making the vehicle sound as if there was much more wrong than a bad pulley.

How much does it cost to replace a tensioner pulley?

It will cost between $125 and $380 to have your pulley replaced. The labor should cost between $45 and $155 and the parts should cost between $85 and $225.

What happens if you over tighten alternator belt?

How tight does alternator belt need to be?

While pushing down, measure how far down the belt goes. For most vehicles, the belt should not be able to be pressed down more than ½ inch. If it can be pressed lower, then the belt is too loose.

What does a loose alternator belt sound like?

Symptoms of a broken serpentine belt include loud slapping, squealing or knocking noises coming from under the hood. The battery-shaped charging system warning light might also come on because the alternator will stop charging the battery.