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Home >> Porsche >> 1986 >> 928 Automatic >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> 5.0L V8 >> Pistons, Pins & Rings >> Piston Pin

Piston Pin

  1. Mark piston and pin for each cylinder. Inspect piston(s) for excessive wear. See FITTING PISTONS  and FITTING RINGS. Check piston pin-to-piston pin bore clearance.
  2. Check piston pin-to-connecting rod bushing clearance. See CRANKSHAFT & CONNECTING RODS. If clearance is beyond 0.0013" (.032 mm), replace pin or install new rod bushing as necessary.
  3. When installing pin, heat piston to 140°F (60°C). Slide pin into piston. If hard to install, lubricate pin bore lightly. Install pin circlips with opening at top or bottom.
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