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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis >> External Pages >> Different car >> Section 87 (3.0L V6 - VIN [3]) >> Overhaul >> Valve Train >> Rocker Arm Shaft Assembly

Rocker Arm Shaft Assembly

WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, and 1995 Dodge Caravan. However, it is still accessible from the selected car via links, so may be relevant.
  1. Note location and direction of rocker arm components and camshaft bearing caps. Remove camshaft bearing cap bolts. Disassemble rocker arm shaft assembly. See Figure.
  2. Ensure intake valve rocker arm shaft has a .12" (3.0 mm) oil hole in bottom of shaft. See Figure. Exhaust valve rocker arm shaft does not have oil hole.
  3. Inspect components for damage. Ensure all oil holes are not clogged. Replace components if damaged. Reassemble rocker arm shaft assembly.
CAUTION: The No. 1 camshaft bearing cap must be installed with machined portion of rocker arm shaft facing downward, toward cylinder head. This positions notch areas of rocker arm shafts upward, pointing toward outside of camshaft bearing cap. See Figure. Ensure No. 2 camshaft bearing cap contains oil inlet from cylinder head. See Figure.
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