Chevrolet Citation/Omega/Phoenix/Skylark 1980-1985 Repair Guide

Belts

Print

INSPECTION





Click image to see an enlarged view

Fig. Fig. 1 There are typically 3 types of accessory drive belts found on vehicles today



Click image to see an enlarged view

Fig. Fig. 2 An example of a healthy drive belt



Click image to see an enlarged view

Fig. Fig. 3 Deep cracks in this belt will cause flex, building up heat that will eventually lead to belt failure



Click image to see an enlarged view

Fig. Fig. 4 The cover of this belt is worn, exposing the critical reinforcing cords to excessive wear



Click image to see an enlarged view

Fig. Fig. 5 Installing too wide a belt can result in serious belt wear and/or breakage

Inspect the belts for signs of glazing or cracking. A glazed belt will be perfectly smooth from slippage, while a good belt will have a slight texture of fabric visible. Cracks will usually start at the inner edge of the belt and run outward. All worn or damaged drive belts should be replaced immediately. It is best to replace all drive belts at one time, as a preventive maintenance measure, during this service operation.

BELT TENSION





Click image to see an enlarged view

Fig. Fig. 6 Alternator drive belt adjustment



Click image to see an enlarged view

Fig. Fig. 7 Power steering pump drive belt adjustment



Click image to see an enlarged view

Fig. Fig. 8 Adjusting the A/C compressor drive belt tension



Click image to see an enlarged view

Fig. Fig. 9 Adjustment of the Air Injector Reactor (AIR) pump drive belt tension

Every 12 months or 15,000 miles, check the water pump, alternator, power steering pump (if so equipped), and air conditioning compressor (if so equipped) drive belts for proper tension. Also look for signs of wear, fraying, separation, glazing and so on, and replace the belts as required.

Belt tension should be checked with a gauge made for the purpose. If a gauge is not available, tension can be checked with moderate thumb pressure applied to the belt at its longest span midway between pulleys. If the belt has a free span less than twelve inches, it should deflect approximately 1 / 8 - 1 / 4 inch. If the span is longer than twelve inches, deflection can range between 1 / 8 and 3 / 8 inches.

  1. Loosen the driven accessory's pivot and mounting bolts.
  2.  
  3. Move the accessory toward or away from the engine until the tension is correct. You can use a wooden hammer handle or a broomstick as a lever, but do not use anything metallic.
  4.  
  5. Tighten the bolts and recheck the tension. If new belts have been installed, run the engine for a few minutes, then recheck and readjust as necessary.
  6.  

It is better to have belts too loose than too tight, because overtight belts will lead to bearing failure, particularly in the water pump and alternator. However, loose belts place an extremely high impact load on the driven component due to the whipping action of the belt.

REMOVAL & INSTALLATION





Click image to see an enlarged view

Fig. Fig. 10 Accessory drive belt routing-4 and 6-cylinder engines



Click image to see an enlarged view

Fig. Fig. 11 To remove a belt, loosen the accessory's pivot bolt and ...



Click image to see an enlarged view

Fig. Fig. 12 ... loosen the mounting bolts, then move it toward the engine and pull the belt off

  1. Loosen the drive accessory's pivot and mounting bolts.
  2.  
  3. Move the accessory toward the engine until enough slack is created to remove the belt from the pulley.
  4.  
  5. Place the new belt over the pulley and move the accessory away from the engine until the tension is correct. You can use a wooden hammer handle, or broomstick, as a lever, but do not use anything metallic, such as a prybar.
  6.  

It is better to have belts too loose than too tight, because overtight belts will lead to bearing failure, particularly in the water pump and alternator. However, loose belts place an extremely high impact loadon the driven component due to the whipping action of the belt.

  1. Tighten the bolts and recheck the tension. If new belts have been installed, run the engine for a few minutes, then recheck and readjust as necessary.
  2.  

 
label.common.footer.alt.autozoneLogo