Inspection Procedure 1: Noise at Start
INSPECTION PROCEDURE 1: Noise at StartDIAGNOSIS
STEP 1. Check if the propeller shaft mounting nuts and the center bearing mounting nuts are loose.
Q: Are the mounting nuts tightened to the specified torque?
YES: Go to Step 2.
NO: Tighten the propeller shaft mounting nuts to 54 ± 5 Nm (40 ± 4 ft. lbs.). Tighten the center bearing mounting nuts to 30 ± 4 Nm (22 ± 3 ft. lbs.). Then go to Step 4.
STEP 2. Check the sleeve yoke's spline of front propeller shaft for wear.
Q: Is wear apparent?
YES: Replace the propeller shaft. Then go to Step 4.
NO: Go to Step 3.
STEP 3. Check the universal joint's journal bearing of front propeller shaft for wear or damage.
Q: Is wear or damage apparent?
YES: Replace the journal bearing. Then go to Step 4.
NO: Go to Step 4.
STEP 4. Retest the system.
Q: Is the abnormal noise eliminated?
YES: The procedure is complete.
NO: Recheck from Step 1.