A Series Diesel Engine Troubleshooting Logic 39
Lubricating Oil Pressure Low (Continued)
Cause
Correction
Loose or Missing Cup Plugs
Check/Replace Cup Plugs.
Refer to Page 123, 132
OK
Suction Tube Loose or Seal
Leaking
Check/Replace Seal.
Refer to Page 117
OK
Worn Lube Pump
Check/Replace Lube Pump.
Refer to Page 118, 128
OK
Loose Main Bearing Cap
Check/Install New Bearings (s) and
Tighten Cap
OK
Worn Bearings
Inspect/Replace Bearings; also
Check/Replace Piston Cooling Nozzles.
Refer to Page 154, 165
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