GM Cadillac 1967-1989 Repair Guide

Injection Pump Adapter, Adapter Seal and New Adapter Timing Mark

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REMOVAL & INSTALLATION



See Figures 1, 2 and 3

  1. Remove injection pump and lines as described earlier.
  2.  
  3. Remove the injection pump adapter.
  4.  
  5. Remove the seal from the adapter.
  6.  

To install:
  1. File the timing mark from the adapter. Do not file the mark off the pump.
  2.  
  3. Position the engine at TDC of No. 1 cylinder. Align the mark on the balancer with the zero mark on the indicator. The index is offset to the right when No. 1 is at TDC.
  4.  
  5. Apply a chassis lube to the seal areas. Install, but do not tighten the injection pump.
  6.  
  7. Install the new seal on the adapter using tool J-28425, or its equivalent.
  8.  
  9. Torque the adapter bolts to 25 ft. lbs. (34 Nm).
  10.  
  11. Install timing tool J-26896 into the injection pump adapter. Torque the tool, toward No. 1 cylinder to 50 ft. lbs. (68 Nm). Mark the injection pump adapter. Remove the tool.
  12.  
  13. Install the injection pump.
  14.  



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Fig. Fig. 1: Marking injection pump adapter



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Fig. Fig. 2: Installing adapter seal



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Fig. Fig. 3: Injection pump adapter bolts

 
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