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Home >> Subaru >> 2004 >> Baja Base, Standard >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Timing Belt >> Engine Mechanical (H4SO) >> Timing Belt Assembly >> Installation >> Automatic Belt Tension Adjuster Assembly And Belt Idler

Automatic Belt Tension Adjuster Assembly And Belt Idler

  1. Preparation for installation of automatic belt tension adjuster assembly;
    CAUTION:
    • Always use a vertical type pressing tool to move the adjuster rod down. 
    • Do not use a lateral type vise. 
    • Push adjuster rod vertically. 
    • Be sure to slowly move the adjuster rod down applying a pressure of 294 N (30 kgf, 66 lb). 
    • Press-in the push adjuster rod gradually taking more than three minutes. 
    • Do not allow press pressure to exceed 9,807 N (1,000 kgf, 2,205 lb). 
    • Press the adjuster rod as far as the end surface of the cylinder. Do not press the adjuster rod into the cylinder. Doing so may damage the cylinder. 
    • Do not release press pressure until stopper pin is completely inserted. 
    1. Attach the automatic belt tension adjusted assembly to the vertical pressing tool.
    2. Slowly move the adjuster rod down with a pressure of 294 N (30 kgf, 66 lb) until the adjuster rod is aligned with the stopper pin hole in the cylinder.
      Fig 1: Moving Adjuster Rod Down
      G00900839Courtesy of SUBARU OF AMERICA, INC.
    3. With a 2 mm (0.08 in) dia. stopper pin or a 2 mm (0.08 in) (nominal) dia. hex bar wrench inserted into the stopper pin hole in the cylinder, secure the adjuster rod.
    Fig 2: Installing Stopper Pin In Stopper Pin Hole In Cylinder
    G00900840Courtesy of SUBARU OF AMERICA, INC.
  2. Install automatic belt tension adjuster assembly.
    1. Tightening torque:  39 N.m (4.0 kgf-m, 28.9 ft-lb)
    Fig 3: Installing Automatic Belt Tension Adjuster Assembly
    G00900841Courtesy of SUBARU OF AMERICA, INC.
  3. Install belt idler (No. 1).
    1. Tightening torque:  39 N.m (4.0 kgf-m, 28.9 ft-lb)
    Fig 4: Installing Belt Idler (No. 1)
    G00900842Courtesy of SUBARU OF AMERICA, INC.