Question about 1997 Toyota Tercel
There is a long screw below the compressor that may loosen or tighten the compressor belt which is not working right. so do I have to take the compressor off to change its belt?
Hi Lets, If you look carefully at the same adjusting rod you should see a locking bolt at right angle to it on the bracket. Loosen that first and I believe the adjustment will work. Regards John
Posted on Oct 27, 2012
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Posted on Jan 02, 2017
That should be right if it is an idler pulley. On belts that do not have idler pulley you will have to loosen lock bolt on adjuster. Like alternator
Posted on Mar 24, 2009
SOURCE: Changing ac compressor belt
This should be a serpentine belt that is held in place with a spring loaded belt tensioner. There shold be a label under the hood showing the correct belt orientation. You need to have a long open end wrench or box wrench tentioner forward, addition tention to it to allow the belt to be slipped over one or the other pullys, once this is done, the belt should be tight. If it is over all the pullys and still loose, you either have the wrong belt or the tensioner is bad.
Posted on May 26, 2009
SOURCE: serpentine belt replacement
Yes, when you go and get youre replacement belt, just make sure you get the belt for your engine that does NOT include the AC. It will not hurt anything by doing this. The only problem that may arise is when installing the new belt, make sure you install it the correct way.
Posted on Aug 09, 2009
first of all you don't have to loosen the pulley,this will no solve the problem,well you already loosen the adjuster,good,bot thing you have not done i will tell you now,on the power steering pump where the belt pass there is also a bolt that hold it ,you must loosen that also,then after you will see the pump moving on the two position that means you will see the belt loosen on 1 position an d the position it will tight the belt,try that man.............
Posted on Aug 23, 2009
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See Figures 1, 2, 3, 4 and 5
Check the condition and tension of all drive belts every 12,000 miles, or at least once a year. Loose drive belts can lead to poor engine cooling and diminished alternator, power steering pump, air conditioning compressor, or emission air pump output. A belt that is too tight places a strain on the bearings in the driven component.
Fig. Fig. 5: Installing too wide a belt can result in serious belt wear and/or breakage
Replace any drive belt that is glazed, worn, cracked, or stretched to the point where correct adjustment tension is impossible. If two belts are used to drive a component, always replace both belts when replacement is necessary. After installing a new belt, run the engine for ten minutes, shut OFF the engine and recheck the belt tension. Readjust if necessary.
Fig. Fig. 10: Engine belt tension chart-1994-95 models
Two popular methods of checking drive belt adjustment are; the Belt Tension Gauge Method and the Belt Deflection Method. The former requires a special gauge and the latter requires a straight edge and scale or just a good eye for measurement. The deflection method will be used in the following belt replacement instructions. A rule of thumb for checking belt tension by the deflection method is to determine the midpoint between two pulleys of the drive belt and press down at that point with moderate thumb pressure. The belt should deflect to the measurement indicated in the following installation procedures. Adjustment is necessary if the belt is either too loose or too tight.
WARNING A belt adjustment which is either too loose or too tight will eventually damage the accessory that belt is driving. A too loose adjustment allows free-play in the belt which could transfer a whipping motion or shock to the accessory drive pulley. Similarly, a belt which is too tight will preload the accessory bearings, leading to early failure.
Fig. Fig. 14: Removing the A/C compressor drive belt from under the vehicle
Fig. Fig. 16: Loosening the locking screw for alternator drive belt removal
If removal of the alternator belt is required, the A/C belt must first be removed.
Fig. Fig. 17: Air pump belt adjustment-2.2L engines
When servicing the air pump, use the square holes provided in the pulley to prevent camshaft rotation.
Fig. Fig. 18: Drive belt adjustment points-2.5L engines
Fig. Fig. 19: Drive belt adjustment points-2.6L engines
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Fig. Fig. 6: Loosen the pivot bolt ...
Fig. Fig. 8: ... slip the old belt off and install a new one
Fig. Fig. 9: Pull outwards to tension the belt
Fig. Fig. 10: Belt routing on the 20R, 22R and 22R-EC engines
Fig. Fig. 11: Belt routing on the 4ME, 5ME and 5MG-E engines
To adjust the tension of the alternator drive belt on all models, loosen the pivot and mounting bolts on the alternator. Using a wooden hammer handle, a broomstick or your hand, move the alternator one way or the other until the proper tension is achieved.
WARNING Do not use a screwdriver or any other metal device (such as a prybar) as a lever.
Tighten the mounting bolts securely. If a new belt has been installed, recheck the tension after about 200 miles (480 km) of driving.
Air Conditioning Compressor
A/C compressor belt tension can be adjusted by turning the tension adjusting bolt which is located on the compressor tensioner bracket. Turn the bolt clockwise to tighten the belt and counterclockwise to loosen it.
See Figures 12
To adjust the tension of the air pump drive belt, loosen the adjusting lever bolt and the pivot bolt. Move the pump in or out until the desired tension is felt.
The tension should be checked between the air pump and the crankshaft pulley on cars without air conditioning. On cars with A/C, the tension should be checked between the A/C compressor and the crankshaft pulley.
Fig. Fig. 12: Moving the air pump to tension the drive belt
Power Steering Pump
Tension on the power steering belt is adjusted by means of an idler pulley. Turn the adjusting bolt on the idler pulley until the desired tension is felt and then retighten the lockbolt.
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After adjustment is satisfactory, tighten the idler pulley bolt, and then tighten the adjustment bolt.
Reconnect the negative battery cable.
When replacing more than 1 belt, it is a good idea to make note or mark what belt goes around what pulley; this will make installation easier if you mix up the belts.
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