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Most cars now have a serpentine belt that drive the alternator, water pump, Power Steering unit, etc. The belt tension pulley is a spring loaded pulley that keeps the proper tension on all these units. It can be moved to release the tension in order to remove the belt.

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Q: What is a belt tension pulley?
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How do you tighten a new timing belt?

Power steering/Drive belt Adjustment To adjust P/S belt tension, loosen tension pulley bolts and turn tension pulley using hexagon wrench. Adjust belt tension to specification described in CHECK. Then tighten tension pulley bolts to specified torque. Tightening torque P/S belt tension pulley bolt (a): 25 Nm (2.5 kgf-m, 18.5 ft. lbs.)


How do you release the tension on the belt tensioner to remove the alternator on a 1992 ext cab silverado?

put a wrench on the pulley side of the tensioner (15mm?) and turn. The pulley arm will move & loosen up the belt.


Why if bad pulley your car not start?

Well to start with the question is a bit vague. A pulley has nothing to do with a start operation; a loose pulley may cause the belt not to turn fast enough to charge the battery and that's as far as it goes. Check your belt tension. If loose tighten it. That's All


How do you set the drivebelt tension on 73 beetle with a generator?

Use the spacers to change the pulley configuration. The alternator pulley halves separates when you remove the large retaining nut at the center. More spacers between the pulley halves loosens the belt. Fewer spacers between the pulley halves TIGHTEN the belt. Keep the extra spacers under the large washer so you'll have them to adjust the NEXT belt.


Where is the belt retention er on a 99 grand am?

If its the 3.4L it has an automatic tensioner. look right under the alternator and there is a pulley. That pulley and arm is the tensioner. To release the tension, there is a bolt on the inside of the pulley, put a wrench on it and pull like you are trying to tighten the bolt. The arm is spring loaded and will pull up, releasing tension.

Related questions

WHAT PULLEY DO I loosen to get single drive belt on?

If you are referring to the Serpentine belt, you loosen no pulley. You simply remove tension from the belt. The tension is applied by the Idler Pulley. Pry the idler back and remove the belt.If you are referring to the Serpentine belt, you loosen no pulley. You simply remove tension from the belt. The tension is applied by the Idler Pulley. Pry the idler back and remove the belt.


What do you need to loosen to change the serpentine belt on a 4 cylinder 1998 jeep wrangler?

u need to relaese tension on the tension pulley. this is usually done with a long socket wrench handle. when u release tension and remove belt you then release tension on pulley until you have routed new belt . you then move tension pulley again until you can put belt on it, then release pulley and it will automatically provide correct tension


How do you loosen the serpentine belt tension on a 2005 grand caravan 3.8L?

To loosen the tension on a serpentine belt on a 2005 Grand Caravan 3.8L, turn the nut of the belt tension pulley to loosen it. Adjust the belt, then tighten the tension pulley by turning the nut in the opposite direction.


How do you adjust tension pulley 2000 dodge Dakota?

You don't. The pulley is pretensioned by the manufacturer. If the belt tension is incorrect, the pulley must be replaced.


Where is a tensioner pulley on a 1981 Oldsmobile omega?

When looking at the engine from the front, the tension pulley is the only wheel on the drive belt that has the belt on the inside of it. All of the other pulleys have the belt going around the top of the pulley. The tension pulley has a bolt that can be loosened and then tightened to remove the drive belt.


Loosen tension on serpentine belt on a 2000 jeep Cherokee sport?

Loosen bolt in tension pulley, then loosen tension bolt. Replace belt. Tighten tension bolt. Last, tighten bolt through pulley.


What is a tension pulley on a Pontiac Sunfire 2.2 L Engine?

tension pulley is an automatic tensioner that keeps the serpentine belt at the proper tension it is a single pulley that is smooth (no grooves) usually turning clockwise with constant pressure loosens pulley for belt removal use caution pulley is spring loaded


How do you adjust the tension on a serpentine belt on a dodge Dakota 2002?

You don't. The serpentine belt tension is automatically maintained by the tensioner pulley, which is an idler pulley located on the passenger side of the system and looks like it doesn't drive anything. If the belt tension is incorrect, the tensioner pulley must be replaced. If the question meant 'how to release tension from the belt' (for removal, etc.), this is done by applying the correct size socket wrench to the tensioner pulley's center nut and rocking the pulley away from the belt.


What is initial tension in belt drives?

Initial tension force Fi is needed to counteract the centrifugal force Fc on the belt and thus keep the belt on the pulley. Fi essentially allows the belt to go around the pulley.


How do you loosen an air conditioning fan belt?

Usually you relieve tension on the tensioner pulley by pulling it to the left or right.


Would a bad gasket on your tension pulley cause your belt to not run smooth?

there are no gaskets on a tension pulley ther is however a spring and yes it can cause the belt not to run smoothly


Where is the AC tension pulley for a 2000 Chevy Metro?

you dont adjust a tension pulley you adjust the position of the compressor to tighten the belt