ENGINE DIAGNOSTIC TEST PROCEDURES
Section 6
•
INJECTION PUMP INITIAL TIMING (ENGINE STOPPED)
400 Series On-Highway
(with Robert Bosch MW Pumps)
FROM FORM NO. CGES-365
INJECTION PUMP INITIAL TIMING (ENGINE STOPPED)
9
A.
TIMING VERIFICATION
INSTRUMENT
GUIDELINE DATA‚
1st CHECK
2nd CHECK
1.
VISUAL POINTER
INSPECTION
+Refer to "Performance Data Guidelines", in this Section.
Visual Check
1.
Remove injection pump timing pointer access plug
from left side of pump mounting adapter.
2.
Rotate the engine in normal operating direction until
the injection pump hub mark is aligned with the
injection pump timing pointer. (Refer to Figure 20.)
Figure 20. MW Initial Timing
3.
Observe engine front cover timing pointer and
crankshaft pulley degree alignment (Figure 21).
4.
To ensure an accurate reading, view the pointer
straight on. The engine should now be positioned at
the specified static pump to engine timing as
indicated in PERFORMANCE DATA GUIDELINES.
Figure 21. Static Pump to Engine Timing
5.
Enter the observed pump to engine timing in the 1st
check box of CGED-365-1.
CGES-240-4
Printed in United States of America
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