You release the spring tension on the tensioner, a pulley in the belt system who's only purpose is to keep the belt tight. Normally you can use a ratchet to move the pulley away from the belt, but some are adjustable and require loosening a bolt.
how do you replace the drive belts on an 1974 mercedes 230
It keeps drive belts under tension (pulled tight)
Technically,Yes. But realistically no. They are both drive belts, but the term drive belt is normally what is referred to as a non-serpentine belt. This term is used to distinguish between the two type belts. A drive belt tension must be adjusted manually, whereas a serpentine belt tension is controlled by a tensioner.
The squeeling if from the belts, this can be normal but you should check the belts to see if they are worn or cracked. Also check the tension this can be a problem aswell.
This sounds like you have a loose or worn drive belt. Check all the belts and their tension.This sounds like you have a loose or worn drive belt. Check all the belts and their tension.
Most likely there is a spring loaded device called a belt tensioner. There is a pulley on it with a bolt or square inset in it. sometime a socket or 3/8" drive extention can be used to move the pulley and release the tension on the belt.
use a 3/8 drive ratchet to loosen the tension and take your belt off.Then unbolt the center bolt of the tension assembly and replace with a new unit.
very carefully
The life of serpentine and drive belts depends on the application, belt component quality and them being free of fluid contamination. New belts can often last 50-100,000 miles. However, it is always recommended to preemptively replace hoses at or before the manufacturer suggested mileage.
on a 2.2 you just need a 3/8 drive rachet or 15mm wrench to release tension from tensioner.2.4 liter is about the same but you must remove the motor mount.gm Jim
It is very hard to do but you will need a 12mm socket for the alternator and a long 12mm wrench to loosen the bolts on the other pully and a 10mm Allen wrench to adjust the A/C belt
There are a few different ways to adjust the drive belt or V-belt tension in a vehicle. The most popular used nowadays is a serpentine belt that connects to and activates every pulley in the engine. These serpentine belts require no tension adjustment as they incorporate an automatic belt tensioner. This type of tensioner has an internal pre-set spring and applies the correct amount of tension to the belt. Some older vehicles and some imports may use a combination of V-belts and serpentine belts in offset pulleys still controlled by the crankshaft pulley. Most often, there are belt tensioners on these vehicles that allow proper tension to be adjusted.