Above Normal Coolant Temperature

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

Excessive Crankcase Pressure

TM 5-2010-205-14

Malfunction

Test or Inspection

Corrective Action

STEP 6. Check for faulty fuel injector assembly and linkage.

If fuel injector is faulty, notify Direct Support Maintenance.

If linkage is defective, replace linkage.

If fuel injector or linkage is not defective, proceed to Step 7.

STEP 7. Check for defective fuel pump or drive.

If fuel pump is defective, replace fuel pump.

If fuel pump drive is defective, replace drive.

If fuel pump or drive is not defective, proceed to Step 8.

STEP 8. Perform a compression check.

If compression is low in any or all cylinders, notify Direct Support Maintenance.

If compression is normal in all cylinders, proceed to Step 9.

STEP 9. Check for worn or defective valve guides or seals.

If valve guides or seals are worn or defective, notify Direct Support Maintenance.

7. Above Normal Coolant Temperature.

Step 1. Check cooling system.

If needed, add coolant to cooling system. Check for leaks.

If level is full, proceed to Step 2.

Step 2. Check for defective thermostat.

If thermostat will not open, replace thermostat.

If thermostat is not defective, proceed to Step 3.

Step 3. Check pressure relief valve for damage.

If damaged, replace.

If not damaged, proceed to Step 4.

Step 4. With coolant filler cap removed, check for combustion gases (bubbles) and/or engine oil in the coolant.

If combustion gases and/or engine oil are present, notify Direct Support Maintenance.

If combustion gases and/or engine oil are not present, proceed to Step 5.

STEP 5. Inspect for leaking, broken water pump.

If water pump is defective, replace water pump.

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