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Pressure Regulator Valve

  1. Remove plug from bottom of crankcase and remove spring and plunger. Inspect plunger and bore in crankcase for signs of wear of seizure. Replace plunger if worn.
    Fig 1: Relief Valve Components
    G09326358Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
  2. Check spring against specifications in Oil Pump Specifications table. Install plunger and spring and screw in plug using a new gasket.
OIL PUMP SPECIFICATIONS

Application In. (mm)
Gear Backlash 0-.008 (0-.20)
Maximum End Play (W/O Gasket) .004 (.10)
Regulator Valve Spring
  Free Length 2.44-2.52 (61.97-64.00)
  Loaded to 17 ft. lbs. (7.71 kg) .93 (23.62)
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