Timing Chain Inspection

Engine. Camry. Acv40 Gsv40
2Az-Fe Engine Mechanical. Camry. Acv40 Gsv40

  1. INSPECT CHAIN SUB-ASSEMBLY

  2. INSPECT NO. 2 CHAIN SUB-ASSEMBLY

  3. INSPECT OIL PUMP DRIVE SPROCKET

  4. INSPECT OIL PUMP DRIVE SHAFT SPROCKET

  5. INSPECT CHAIN TENSIONER SLIPPER

  6. INSPECT NO. 1 CHAIN VIBRATION DAMPER

  7. INSPECT CHAIN TENSIONER PLATE

  8. INSPECT NO. 1 CHAIN TENSIONER

Timing Chain -- Inspection



1. INSPECT CHAIN SUB-ASSEMBLY


    Camry. Acv40 Gsv40.2Az-Fe Engine Mechanical.Engine.Timing Chain Inspection

  1. Pull the chain with a force of 140 N (14.3 kgf, 31.5 lbf) as shown in the illustration.

  1. Using vernier calipers, measure the length of 15 links.

    Maximum chain elongation:
    114.5 mm (4.508 in.)
    NOTICE:
    Perform the measurement at 3 random places. Use the average of the measurements.
    If the elongation is greater than the maximum, replace the chain.


2. INSPECT NO. 2 CHAIN SUB-ASSEMBLY


    Camry. Acv40 Gsv40.2Az-Fe Engine Mechanical.Engine.Timing Chain Inspection

  1. Pull the chain with a force of 140 N (14.3 kgf, 31.5 lbf) as shown in the illustration.

  1. Using vernier calipers, measure the length of 15 links.

    Maximum chain elongation:
    102.2 mm (4.024 in.)
    NOTICE:
    Perform the measurement at 3 random places. Use the average of the measurements.
    If the elongation is greater than the maximum, replace the No. 2 chain.


3. INSPECT OIL PUMP DRIVE SPROCKET


    Camry. Acv40 Gsv40.2Az-Fe Engine Mechanical.Engine.Timing Chain Inspection

  1. Wrap the chain around the sprocket.

  1. Using vernier calipers, measure the sprocket diameter with the chain wrapped around.

    Minimum gear diameter (with chain):
    48.2 mm (1.898 in.)
    NOTICE:
    The vernier calipers must be in contact with the chain rollers when measuring.
    If the diameter is less than the minimum, replace the chain and sprocket.


4. INSPECT OIL PUMP DRIVE SHAFT SPROCKET


    Camry. Acv40 Gsv40.2Az-Fe Engine Mechanical.Engine.Timing Chain Inspection

  1. Wrap the chain around the sprocket.

  1. Using vernier calipers, measure the sprocket diameter with the chain wrapped around.

    Minimum gear diameter (with chain):
    48.2 mm (1.898 in.)
    NOTICE:
    The vernier calipers must be in contact with the chain rollers when measuring.
    If the diameter is less than the minimum, replace the chain and sprocket.


5. INSPECT CHAIN TENSIONER SLIPPER


    Camry. Acv40 Gsv40.2Az-Fe Engine Mechanical.Engine.Timing Chain Inspection

  1. Using vernier calipers, measure the tensioner slipper wear.

    Maximum wear:
    1.0 mm (0.039 in.)
    If the wear is greater than the maximum, replace the chain tensioner slipper.


6. INSPECT NO. 1 CHAIN VIBRATION DAMPER


    Camry. Acv40 Gsv40.2Az-Fe Engine Mechanical.Engine.Timing Chain Inspection

  1. Using vernier calipers, measure the vibration damper wear.

    Maximum wear:
    1.0 mm (0.039 in.)
    If the wear is greater than the maximum, replace the No. 1 chain vibration damper.


7. INSPECT CHAIN TENSIONER PLATE


    Camry. Acv40 Gsv40

  1. Using vernier calipers, measure the vibration damper wear.

    Maximum wear:
    0.5 mm (0.020 in.)
    If the wear is greater than the maximum, replace the chain tensioner plate.


8. INSPECT NO. 1 CHAIN TENSIONER


    Camry. Acv40 Gsv40.2Az-Fe Engine Mechanical.Engine.Timing Chain Inspection

  1. Check that the plunger moves smoothly when the ratchet pawl is raised with your finger.

  1. Release the ratchet pawl, then check that the plunger is locked in place by the ratchet pawl and does not move when pushed with your finger.