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Page Title:
EXCESSIVE FUEL CONSUMPTION BLACK SMOKE EXHAUST |
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 EXCESSIVE OIL CONSUMPTION
ENGINE
NO SMOKE INCREASE
Check
hnes and fittings for leaks. Replace defective
`
-
2
Check oil seals and gaskets for leaks. Replace defective
components.
Check oil bypass valve and spring. Replace defective com-
3
ponents (P 3-132).
EXCESSIVE FUEL CONSUMPTION
ENGINE
BLACK SMOKE EXHAUST
Test for defective fuel injection pump.
A Adjust fuel injection pump (model PSU, p 4-7; model 50, p 4-7).
B Retime fuel injection pump to engine (model PSU, p 4-7; model 50, p 4-7).
C Replace worn or defective components (model PSU, p 3-64; model 50, p 3-80).
D Replace defective fuel injection pump (model PSU, p 3-72; model 50, p 3-88).
2
Test for defective fuel injector nozzles.
A Perform nozzle assembly test and adjustment
procedures (p
B
Service nozzle and holder assembly (p 3-25).
TM
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