Timing Belt: Service and Repair

REMOVAL STEPS

REMOVAL
1. Right-side engine mounting
^ Before removing the engine mount, support the engine.
2. Power steering drive belt
3. Generator drive belt
4. Engine mounting bracket
^ Remove the engine mounting bracket from the timing cover.
5. Crank pulley bolts
6. Timing cover fixing bolt
7. Timing cover
8. Crankshaft pulley hub




^ Rotate the crankshaft to position the Number 4 cylinder at Top-Dead-Center on the compression stroke. Align the camshaft pulley alignment mark with the left side of cylinder head upper surface.
^ Use holding wrench to turn and stop the crankshaft.
Crank holding wrench J-37376
9. Tension pulley fixing bolt
^ Do not remove fixing bolt, just loosen the bolt.
10. Timing belt.

INSTALLATION

CAUTION:
1. Do not bend or twist the belt. Severely twisting or bending the belt could damage the core. The belt should not be bent at a radius of less than 30 mm (1.2 in.).
2. Do not allow oil or other chemical substances to come in contact with the belt.
3. Do not attempt to pry or stretch the belt with a screw driver or any other tool during the installation procedure.
4. Store timing belts in a cool and dark place. Never expose them to direct sunlight or heat.

To install, follow the removal steps in the reverse order, noting the following points:




1. To ensure the timing belt is installed correctly, the lettering must be able to be read while viewing it from the passenger side fender.
2. Tighten the crankshaft pulley hub to the specified torque.

Torque N.m (lb.ft.) 147 (109)
Crank holding wrench J-37375

3. Tighten the timing cover fixing bolt to the specified torque.

Torque N.m (lb.in.) 10 (89)

4. Tighten the crank pulley bolts to the specified torque.

Torque N.m (lb.in.) 7 (62)

TIMING BELT ADJUSTMENT




1. Align the crankshaft pulley timing groove with the mark on the oil pump.




2. Make sure that the camshaft pulley timing mark is aligned with the upper surface of the cylinder head and the dowel pin is in the up position.




3. Install the belt in the following order.
1) Crankshaft timing pulley
2) Camshaft pulley
3) Coolant pump pulley
4) Tension pulley
4. Insert a hex wrench into the tension pulley hexagonal hole. Rotate the pulley anticlockwise to tension the belt. Hold the pulley stationary and temporarily tighten the bolt.
5. Turn the crankshaft two complete counterclockwise revolutions and align the crankshaft timing pulley groove with the mark on the oil pump.
6. Loosen the tension pulley bolt.
7. Insert a hex wrench into the tension pulley hexagonal hole. Rotate the pulley anticlockwise to tension the belt. Hold the pulley stationary and tighten the bolt to the specified torque.

Torque N.m (lb.ft.) 50 (37)







8. Move the crankshaft back to about 50° BTDC and then back to TDC of Number 4 cylinder. Align the crankshaft pulley timing groove with the mark on the oil pump. Make sure that the camshaft pulley timing mark is aligned with the upper surface of the cylinder head and the dowel pin is in the up position.




9. Measure the deflection by the procedure as shown in the Figure.

Deflection N.m (in.) 16-20 (0.708-0.078)

10. If the measurement value is not within specified, repeat the procedures from step 4.