SERIES 60 ENGINE OPERATOR'S GUIDE
Abnormal Operating Condition Symptoms and Probable Causes
Probable Causes
High Lube Oil
Consumption
Low Oil
Pressure
Loose connections
X
Cracked lines
X
Damaged gaskets or seal rings
X
* Lube oil loss at breather tube
X
* Lube oil loss at dipstick tube
X
Leaking oil cooler
X
Leaking valve stem seals
X
Worn/broken oil control rings
X
Scored liner and/or piston
X
Excessive engine installation angle
X
Crankcase overfilled
X
Oil in air tanks (air compressor
malfunction)
X
Plugged crankcase breather
X
Oil level low
X
Improper engine oil viscosity (fuel in the
oil)
X
Faulty oil pressure regulator valve
X
Worn crankshaft, camshaft or
connecting rod bearings
X
Missing cup plugs in rocker arm shafts
X
Faulty oil pressure relief valve
X
Air leaks in oil pump (suction side)
X
Worn or damaged oil pump
X
Faulty oil pressure gage
X
Faulty electrical components (for gage)
X
Plugged oil line or orifice
X
* Indicates high crankcase pressure
All information subject to change without notice. (Rev. 01/04)
115
6SE484
0401
Copyright © 2004 DETROIT DIESEL CORPORATION