ENGINE DIAGNOSTIC TEST PROCEDURESSection 6•INJECTION PUMP INITIAL TIMING (ENGINE STOPPED)400 Series On-Highway(with Robert Bosch MW Pumps)FROM FORM NO. CGES-365INJECTION PUMP INITIAL TIMING (ENGINE STOPPED)9A.TIMING VERIFICATIONINSTRUMENTGUIDELINE DATA‚1st CHECK2nd CHECK1.VISUAL POINTERINSPECTION+Refer to "Performance Data Guidelines", in this Section.Visual Check1.Remove injection pump timing pointer access plugfrom left side of pump mounting adapter.2.Rotate the engine in normal operating direction untilthe injection pump hub mark is aligned with theinjection pump timing pointer. (Refer to Figure 20.)Figure 20. MW Initial Timing3.Observe engine front cover timing pointer andcrankshaft pulley degree alignment (Figure 21).4.To ensure an accurate reading, view the pointerstraight on. The engine should now be positioned atthe specified static pump to engine timing asindicated in PERFORMANCE DATA GUIDELINES.Figure 21. Static Pump to Engine Timing5.Enter the observed pump to engine timing in the 1stcheck box of CGED-365-1.CGES-240-4Printed in United States of AmericaPage 28
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