Low Oil Pressure - TM-5-2010-205-140051

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Excessive Crankcase Pressure

TM-5-2010-205-14 Propelling Unit Outboard NSN 2010-01-251-2227 Manual

Section V. UNIT MAINTENANCE PROCEDURES

TM 5-2010-205-14

Malfunction

Test or Inspection

Corrective Action

STEP 5. Inspect for defective oil filter bypass valve.

If valve is defective, replace valve.

If valve is not defective, proceed to Step 6.

STEP 6. Check for defective sending unit.

If sending unit is defective, replace sending unit.

If sending unit is not defective, proceed to Step 7.

STEP 7. Check for defective gauge.

If gauge is defective, replace gauge.

If gauge is not defective, proceed to Step 8.

STEP 8. Check for obstructed gauge line and orifices.

If gauge line or orifices are obstructed, replace line and orifices as required.

If gauge line or orifices are not obstructed, proceed to Step 9.

STEP 9. Check for defective oil pump.

If oil pump is defective, replace oil pump.

If oil pump is not defective, proceed to Step 10.

STEP 10. Steam clean engine and then operate engine at idle speed.

If oil leaks are visible, repair or replace defective parts.

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