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All Other Models

  1. The clearance between cam lobe and cam follower is adjusted by means of replaceable discs. Discs are available in 26 thicknesses from 0.119 - 0.166" (3.0 - 4.25 mm). Discs most frequently used are 0.140 - 0.150" (3.55 - 3.80 mm).
  2. Warm up engine to normal operating temperature. Using wrench on center bolt of crankshaft pulley, hand turn crankshaft clockwise until cam lobes for cylinder being tested are pointing upward. Use feeler gauge to check valve clearance.
  3. Use special tool VW546 to press down cam follower, so that adjusting disc can be readily removed with tool US4476. When depressing cam followers, turn so that openings are at 90° angle to cam.
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