72418 - D35 LOW ENGINE OIL PRESSURE

The special warning light indicates a decrease in pressure in the engine lubrication circuit.
STEPOPERATIONS TO BE CARRIED OUTTEST RESULTS
0PRELIMINARY CHECKSALL OKPROBLEMS ENCOUNTEREDACTION
Check:

  • that the engine oil level is correct
  • that there are no significant leaks from lubrication circuit
Move on to Step 1. Oil level low1. Restore the correct level
2. Leaks detected2. Eliminate leaks
1LUBRICATION SYSTEM PRESSURE CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check that the lubrication system pressure is correct    See in Op. 0510C20 ENGINE LUBRICATION SYSTEM - Check SUPPLY PRESSUREMove on to Step Low engine oil pressureMove on to Step
2LUBRICATION SYSTEM CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check that the engine oil pump is working properlyMove on to Step Oil pump faultyReplace the oil pump    See in Op. 1084B10 ENGINE OIL PUMP - R.R. with crankcase sump removed
3LUBRICATION SYSTEM CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check:

  • the seal of the crankshaft duct plugs;
  • the main journal/crankcase bearing clearance
Move on to Step 1. Plugs faulty1. Replace the plugs    See in Op. 1024A20 Crankshaft PLUGS, removed - Replace and wash inside of shaft ducts
2. Clearance too large2. Restore correct values
4CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer presentFault persistsContinue following the instructions in Table K109