GM Full Size Vans 1967-1986 Repair Guide

Camshaft Bearings



See Figures 1 and 2

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Fig. Fig. 1: View of a camshaft bearing removal and installation tool

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Fig. Fig. 2: Make this simple tool to check camshaft bearing oil hole alignment

If excessive camshaft wear is found, or if the engine is completely rebuilt, the camshaft bearings should be replaced.

The front and rear bearings should be removed last, and installed first. Those bearings act as guides for the other bearings and pilot.

  1. Drive the camshaft rear plug from the block.
  3. Assemble the removal puller with its shoulder on the bearing to be removed. Gradually tighten the puller nut until the bearing is removed.
  5. Remove the remaining bearings, leaving the