FUEL SYSTEM TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
FUEL INJECTION TIMING CHECK
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This procedure must be done before any of the following:
Bolts that hold fuel injection pump to front housing are loosened (WP 0164 00).
Removal of fuel injection pump (WP 0164 00).
Fuel injection pump is timed at four degrees after top-center on compression stroke of No. 1 cylinder.
Timing is important to conform to allowable emissions.
Set No. 1 piston (1) at top-center on compression stroke. Refer to Finding Top-Center Position for No. 1 Piston (WP
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No. 5 fuel injector nozzle can be used, if necessary.
Remove No. 2 fuel injector nozzle (WP 0163 00).
Ensure seat washer for fuel injector nozzle is removed.
Check bore of fuel injector nozzle and seat for fuel injector nozzle.
Align alignment pin (2) of main body (3) with slot in
fuel injector nozzle hole.
Place main body (3) into fuel injector nozzle hole and
install gland nut (4).
Apply clean engine oil to probe (5).
Insert probe (5) into main body (3) and carefully lower
probe to contact top of piston (1).