Inspection Procedure 11
INSPECTION PROCEDURE 11: Oil leakageDIAGNOSIS
STEP 1.Check the vent plug for clogging.
Q: Is the vent plug clogged?
YES: Clean or replace the part. Then go to Step 5.
NO: Go to step 2.
STEP 2.Check the cover installation.
Q: Is the cover installed properly?
YES: Go to Step 3.
NO: Repair. Then go to Step 5.
STEP 3.Check the oil seal for wear or damaged.
Q: Is the oil seal worn or damaged?
YES: Replace the seal. Then go to Step 5.
NO: Go to Step 4.
STEP 4.Check the oil level.
Remove the filler plug and check the gear oil level.
Q: Is the gear oil level more than 8 mm (0.3 inch) below the bottom of the filler plug hole?
YES: Refill Hypoid gear oil API classification GL-5 or higher, SAE viscosity Number 90, 80W. Then go to Step 5.
NO: There is no action to be taken.
STEP 5. Check symptoms.
Q: Is there oil leakage?
YES: This diagnosis complete.
NO: Repeat to Step 1.