Subaru ff-1/1300/1400/1600/1800/Brat 1970-1984 Repair Guide

Belts

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INSPECTION



The condition and proper adjustment of the drive belt should be checked every 15 months or every 15,000 miles (24,000 km), whichever occurs first. Inspect 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 usually start at the inner edge of the belt and run outward. Replace the belt at first sign of cracking or if glazing is severe.

Proper drive belt tension adjustment is important, inadequate tension will result in slippage and wear, while excessive tension will damage the water pump and alternator bearings and cause the belt to fray and crack.

Refer to the illustrations for the proper recommended tensions.

ADJUSTING



Alternator Belt
  1. Apply penetrating oil to the alternator mounting and adjusting bolts. Loosen the bolts.
  2.  
  3. Pull or pry on the alternator until the belt seems tight.
  4.  
  5. Temporarily snug the adjusting bolt and check belt deflection.
  6.  


WARNING
Replace the belt if cracked or defective in any way.

  1. If belt tension is OK, tighten the alternator mounting and adjusting bolts.
  2.  



Click image to see an enlarged view

Fig. Fig. 1 Belt tension for models without power steering and air conditioning



Click image to see an enlarged view

Fig. Fig. 2 Checking power steering pump and air conditioning belt tension

Power Steering Belt
  1. Remove the idler cover cap by turning and pulling. Adjustable jawed pliers with a piece of rag between the jaws can be used.
  2.  
  3. Turn the adjusting bolt until the correct belt tension is obtained. If removing the belt, loosen the adjusting bolt until the drive belt can be removed.
  4.  
  5. After a new belt is installed and the correct tension obtained, install the idler cap cover by pushing in and turning.
  6.  

REMOVAL & INSTALLATION



  1. Clean all mounting and adjustment bolts and apply penetrating oil.
  2.  
  3. Loosen the components adjusting and mounting bolts.
  4.  
  5. Move the component toward or away from the engine until there is enough slack in the belt to slip it over the pulley.
  6.  

To install:

  1. Replace the worn or broken belt.
  2.  
  3. Temporarily snug the adjusting bolt and check belt deflection.
  4.  


WARNING
Replace the belt if cracked or defective in any way.

  1. If belt tension is OK, tighten the alternator mounting and adjusting bolts.
  2.  

 
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