Section 03 TROUBLESHOOTING
Subsection 01 (TROUBLESHOOTING CHART)
LOW OR NO ENGINE OIL PRESSURE (4-TEC SERIES)
OTHER OBSERVATION POSSIBLE CAUSE REMEDY
Oil level too low Refill. See TECHNICAL DATA for
specifications
Leaking gasket Replace
Oil leaking out of weep hole (PTO housing)
Replace oil seal on pump shaft
Oil pressure sensor defective Check/replace
Oil pump malfunctioning Clean rotor and check wear limits
Oil regulator valve sticks open, or spring
load too small
Clean/replace
Heavy wear on plain bearings Replace
ENGINE OIL CONTAMINATION (MILKY) (4-TEC SERIES)
OTHER OBSERVATION POSSIBLE CAUSE REMEDY
Oil seal and rotary seal on coolant pump
shaft leaking
Replace both seals. Refer to PTO
HOUSING. Change oil
Cylinder head gasket leaking Replace gasket. Refer to CYLINDER
HEAD. Change oil
Loose screws on cylinder head, PTO
housing or oil separator
Retorque. Change oil
Oil contamination due to metal or plastic
particles
Replace possibly damaged parts.
Change oil
Water and oil mixture
leaking out of weep
hole (PTO housing)
Water ingestion (intake manifold, TOPS
valve, dipstick)
Refer to MAINTENANCE
The same causes as above apply. However, look at the following added causeWater and oil mixture
without leaking out at
weep hole
(PTO housing)
Weep hole plugged
Check/clean weep hole
60 smr2004-Complete Line Up
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