1983 Toyota Tercel


[Engine Mechanical]-Emmission Control System-Fuel System-Cooling System-Lubrication System-Ignition System-Starting System-Charging System-Clutch-Transaxle-Propeller Shaft-Front Axle and Suspension-Rear Axle and Suspension-Brake System-Steering-Body Electrical System-Body-Air Conditioning System

Trouble Shooting-Engine Tune-Up-Idle HC/CO Concentration Check Method-Compression Check-[Timing Belt]-Cylinder Head-cylinder Block

TIMING BELT



PREPERATION FOR REMOVAL
  1. REMOVE RADIATOR
  2. IF VEHICLE HAS POWER STEERING, REMOVE VANE PUMP DRIVE BELT
  3. IF VEHICLE HAS AIR CONDITIONING, REMOVE COMPRESSOR DRIVE BELT AND IDLER PULLEY BRACKET
    1. Loosen the idler pulley nut.
    2. Loosen the adjusting bolt and remove the drive belt.
    3. Loosen the alternator lower mount bolt and press the alternator to the fender apron side.
    4. Remove the idler pulley bracket with the pulley.
  4. REMOVE AIR CLEANER

REMOVAL OF TIMING BELT
  1. REMOVE DRIVE BELTS AND WATER PUMP PULLEY
    Remove the water pump and alternator drive belt.
  2. REMOVE CYLINDER HEAD COVER
    1. Disconnect the PCV hose from PCV valve.
    2. Remove the cylinder head cover, gasket and half circle plug.
  3. REMOVE CRANKSHAFT PULLEY
    1. Set No. 1 cylinder at TDC/compression.
      Turn the crankshaft pulley until the timing mark is aligned with the TDC mark.
      NOTE: Check that the rocker arms on the No. 1 cylinder are loose. If not, turn the crankshaft one full turn.
    2. Secure the camshaft and remove the pulley bolt.
    3. Using SST, remove the pulley.
      SST 09213-31021
  4. REMOVE TIMING BELT COVERS AND GASKETS
  5. REMOVE TIMING BELT GUIDE
  6. REMOVE TIMING BELT AND IDLER PULLEY
    NOTE: If reusing the timing belt, draw a direction arrow on the belt (in direction of engine revolution), and place matchmarks on the pulleys and belt as shown in the figure.

    1. Loosen the idler pulley bolt, push it left as far as it will go and then temporarily tighten it
    2. Remove the belt.
    3. Remove the idler pulley bolt, pulley and return spring.
  7. REMOVE CRANKSHAFT TIMING PULLEY
  8. REMOVE CAMSHAFT TIMING PULLEY
    Secure the camshaft and remove the camshaft timing pulley bolt.

INSPECTION OF COMPONENTS
  1. INSPECT TIMING BELT
    If there are defects, as shown in the figure, check the following points and replace the timing belt if necessary.
    1. Premature severance
      • Check for proper installation.
      • Check the timing gear cover gaskets for damage and check installation
    2. If the belt teeth are cracked or damaged, check to see if the camshaft is locked.
    3. If there is no noticalbe wear or cracks on the belt face, check to see if there are nicks on one side of the idler pulley lock.
    4. If there is wear or damage on only one side of the belt, check the belt guide and the alignment of each pulley.
    5. If there is noticeable wear on the belt teeth, check the timing gear cover gaskets for damage and check the installation of the gaskets.
  2. INSPECT IDLER PULLEY
    Check the turning smoothness of the timing belt idler pulley.

INSTALLATION OF TIMING BELT
  1. INSTALL CAMSHAFT TIMING PULLEY
    1. align the camshaft knock pin and camshaft timing pulley.
    2. Secure the camshaft and tighten the camshaft timing pulley bolt.
      Torque: 400-550 kg-cm (29-39 ft-lb)
    3. Align the bearing cap mark and the center of the small hole on the camshaft timing pulley.
      NOTE: Remove any oil or water on the camshaft timing pulley and keep it clean.
  2. INSTALL CRANKSHAFT TIMING PULLEY
    Install the crankshaft timing pulley and a lign the TDC marks on the oil pump body and crankshaft timing pulley.
    NOTE: Remove any oil or water on the crankshaft timing pulley and keep it clean.
  3. INSTALL TIMING BELT IDLER PULLEY
    1. Install the timing belt idler pulley and tension spring.
    2. Pry the timing belt idler pulley toward the left as far as it will go and temporarily tighten it.
      NOTE: Remove any oil or water on the idler pulley and keep it clean.

  4. INSTALL TIMING BELT
    NOTE: If reusing the timing belt, align the points marked during removal and install the belt with the arrow pointing in the direction of engine revolution.
  5. CHECK VALVE TIMING AND TIMING BELT TENSION
    1. Loosen the timing belt idler pulley set bolt.
    2. Temporarily install the crank pulley bolt and turn the crankshaft two revolutions from TDC to TDC.
      NOTE: Always turn the crankshaft clockwise.
    3. Check the valve timing.
      Insure that each pulley aligns with the marks as shown in the figure.
    4. Tighten the timing belt idler pulley set bolt.
      Torque: 300-450 kg-cm (22-32 ft-lb).
    5. Measure the timing belt tension as shown in the figure.
      Timing belt tension: 6-7 mm at 2kg (0.24-0.28 in. at 4.4 lb)
    6. If the measured value is not within standard, readjust with the idler pulley.
    7. Remove the temporarily installed crank pulley bolt.

  6. INSTALL CYLINDER HEAD COVER
    1. Install the half circle plug and cylinder head cover with gasket.
    2. Connect the PCV hose to the PCV valve.
  7. INSTALL TIMING BELT GUIDE
  8. INSTALL TIMING BELT COVERS WITH GASKET
  9. INSTALL CRANK PULLEY
    Install the crank pulley, secure the crankshaft and tighten the retaining bolt.
    Torque: 1,100-1,300 kg-cm (88-94 ft-lb)
    NOTE: Apply a light coating of engine oil on the bolt threads and under the bolt head before installing.
  10. IF VEHICLE HAS AIR CONDITIONING, INSTALL IDLER PULLEY BRACKET WITH PULLEY
  11. IF VEHICLE HAS POWER STEERING, INSTALL VANE PUMP DRIVE BELT
  12. INSTALL WATER PUMP PULLEY
  13. INSTALL DRIVE BELTS
    Install and adjust the drive belts.
    Drive belt tension:
    New belt 125 +/- 25 lb
    Used belt 80 +/- 20 lb
    (w/Borroughs belt tension gauge No.BT-33-73F)
  14. INSTALL AIR CLEANER
  15. INSTALL RADIATOR
  16. START ENGINE
    1. Check for leaks
    2. Make engine adjustments as necessary.
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