PERMANENTLY ENGAGED GEAR MECHANISM ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT FOR NOISE

   1. Start the engine and check for noise from the joint between the engine and transmission.

      Tip:

      Noise may occur if the crankshaft bearing or the one-way clutch assembly is malfunctioning or because of ring gear sub-assembly and flywheel sub-assembly interference due to a broken snap ring.

2. INSPECT PERMANENTLY ENGAGED GEAR MECHANISM

   Note:

   When performing this inspection, use caution to prevent burning yourself. Engine-related components are extremely hot immediately after the engine is stopped.

   1. Remove the starter assembly.

      Click here

   2. 

      *a	Lock
      *b	Free
      	Vehicle Front Side

      Turn the ring gear sub-assembly in the direction indicated by the arrows and check if it turns freely and locks, as shown in the illustration.

      Standard

      When the permanently engaged gear mechanism is functioning properly, the gear turns freely counterclockwise and locks when turned clockwise, as shown in the illustration.

      Symptom	Suspected Area	See page
      The ring gear sub-assembly turns freely in both directions.	One-way clutch assembly	Click here
      Noise occurs or the ring gear sub-assembly does not turn freely.	One-way clutch assembly	Click here
      	Crankshaft bearing	Click here
      	Ring gear sub-assembly	Click here
      The ring gear sub-assembly turns, but has excessive axial looseness.	Ring gear sub-assembly	Click here
      The ring gear sub-assembly does not turn.	One-way clutch assembly	Click here
      	Crankshaft bearing	Click here
      	Ring gear sub-assembly	Click here

      Tip:

      • If it is difficult to see the ring gear sub-assembly, use a mirror or other similar tool.

      • If it is difficult to turn the ring gear sub-assembly by hand, lightly push on the gear using a screwdriver or other similar tool.

      • If excess resistance is felt, check for any foreign matter jammed in each part. Inspect each part and replace them as necessary.

      • If any malfunction is found and part replacement is required, replace the inner oil seal and rear engine oil seal as a set.

      • Since the starter may malfunction if any component listed in "Suspected Area" is broken, inspect the starter (see Starter Inspection).

   3. Install the starter assembly.

      Click here

3. INSPECT FOR OIL LEAK

   1. Check for oil leaks from the joint between the engine and transmission.

      Tip:

      • If any oil leaks are found, inspect the leakage point. If necessary, replace the inner oil seal and rear engine oil seal as a set.

      • If the snap ring is not installed correctly or damaged, the ring gear sub-assembly may move out from its original position and result in an oil leak. Therefore, it is necessary to confirm that the snap ring is installed correctly and undamaged when replacing the oil seals.