TM 5-3805-262-20
3-30. ENGINE TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7. EXCESSIVE OIL CONSUMPTION (Cont).
S t e p 3 . ( C o n t ) .
Dial 50 into TEST SELECT.
Press and hold TEST until CAL appears on display then release TEST.
Wait for offset value to appear on display. Offset value should be
between -150 to +150. If it is not,
STE/ICE is defective (refer to
TM 9-4910-571-12&P).
Press and release TEST.
Start engine and warm engine to operating temperature.
Watch VTM display and idle engine.
Display should indicate 45 to 60 psi with engine at normal operating
temperature.
Shut off engine.
a. If VTM display indicates 45 to 60 psi with engine at normal op-
erating temperature, disconnect test equipment, reinstall engine
oil pressure switch (page 5-114), and go to step 4 below.
b. If VTM display indicates over 60 psi, notify next higher mainte-
nance level (oil pressure is too high, engine oil pump must be
removed and repaired).
Step 4.
Remove engine right side panels (page 9-14).
Check for engine oil leaks at rocker arm cover gaskets, oil pan gas-
ket, timing gear and fuel pump gear cover gaskets, engine oil fil -
ter, engine oil cooler; external oil lines between cylinder block
and fuel injection pump, cylinder block and air compressor, and tim-
ing gear cover and air compressor; and oil drain plug gasket.
a . I f o i l l e a k s a r e s e e n, tighten hardware or notify next higher
maintenance level to replace leaking gaskets.
b. If oil leaks are not seen, go to step 5 below.
Step 5.
Unlock and open radiator cap access
p a n e l.
Remove radiator cap and inspect coolant
for lubricating oil contamination .
a. If coolant is contaminated with oil,
notify next higher maintenance level
to check oil cooler core for damage.
b. If coolant is not contaminated, re-
install radiator cap, close and lock
radiator cap access panel, and go to
step 6 below.
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