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Removal & Installation: Notes

NOTE: Manufacturer does not recommend disassembly of pump. However, the following seals can be replaced with the injection pump installed on the engine. For problems not covered in this article, pump must be removed and taken to an authorized repair station.

Fig 1: Guide Stud Seal Replacement

Courtesy of GENERAL MOTORS COMPANY

Metering valve spring must be installed in original position over guide stud.