Detroit Diesel 60 Series Operator's Manual page 75

ABNORMAL OPERATING CONDITIONS
Probable Causes:
Loose connections
Cracked lines
Damaged gaskets or seal rings
*Lube oil loss at breather tube
*Lube oil loss at dipstick tube
*Indicates high crankcase pressure
Leaking oil cooler
Leaking valve stem seals
Worn/broken oil control rings
Scored liner and/or piston
Excessive engine installation angle
Crankcase overfilled
Oil in air tanks (air compressor
malfunction)
Plugged crankcase breather
Oil level low
Improper engine oil viscosity
(fuel in the oil)
Faulty oil pressure regulator valve
Worn crankshaft bearings
Worn camshaft or connecting rod
bearings
Missing cup plugs in rocker arm
shafts
Faulty oil pressure relief valve
Air leaks in oil pump (suction
side)
Worn or damaged oil pump
Faulty oil pressure gage
Faulty electrical components (for
gage)
Plugged oil orifice
Obstructed oil line
High Lubricating Oil Consumption
Low Oil Pressure
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
65