Valve Cover - Correction to Removal Procedure

Number 83-I-47 Section 6B Date 03/83
Subject: VALVE COVER REMOVAL 1980-1983 DIESEL ENGINE
1980 through 1983 Chassis Service Manuals state that when removing engine valve cover(s) the injection pump and pump lines be removed. This is incorrect. It is necessary to remove ONLY the injection lines.

Injection pump lines may be removed from either the left or right sides as required. When performing any service on a diesel engine that requires valve cover removal always remove the pump lines completely. Never disconnect them from the injector nozzles and try to position out of the way. This will cause damage to the lines and result in a poor running engine.