Timing Belt: Service and Repair
1.V-ribbed belt
2.Timing belt cover (upper)
3.Timing belt cover (lower)
4.Crankshaft pulley
5.Tensioner lock bolt
6.Tensioner & spring
7.Timing belt
8.Camshaft pulley
9.Timing belt crankshaft pulley
REMOVAL AND INSTALLATION OF TIMING BELT AND/OR PULLEY (S)
Remove each part (if required) in the numbered order shown in the image. Installation is the reverse order of removal (7.6.5 - 5.6.7).
Caution:
^ Be careful not to let oil or grease get on the removed parts.
^ The timing belt, pulley, and tensioner are not to be washed. If they are dirty, wipe them with rags.
^ Replace the timing belt if there is moisture, oil. or grease on it.
^ Be careful not to twist, crimp, or sharply bend the timing belt.
^ Replace the timing belt after 100,000 km (60,000 miles) of driving.
Timing belt
Make an arrow mark on the back of the timing belt to indicate the correct direction in which the belt should move. This mark is to indicate the correct direction when the belt is later reinstalled.
Caution:
^ The belt life will be shortened if it is installed so that it rotates in the wrong direction.
Camshaft pulley
Before removal, turn the crankshaft to align the camshaft pulley and the front housing timing mark.
Caution:
^ The timing mark is "A".
As shown in the image, the lock bolt of the camshaft pulley can be removed or installed by using a T-wrench on the front housing installation bolt and holding the camshaft pulley.
Installation and tension adjustment of timing belt
1. Align the timing belt crankshaft pulley and the oil pump body timing mark.
2. The top mark "A" on the camshaft pulley should be at the very top. At this time, the maung mark on the top of the front housing and the top mark on the camshaft pulley must be in alignment.
3. Install tensioner and loosely tighten the tensioner lock bolts.
4. Attach the tensioner spring.
5. More tensioner fully to the outer side, and partially tighten the lock bolt.
6. Install the timing belt onto the crankshaft pulley and the camshaft pulley, doing so from the tension side (the right side, as viewed from the engine front) so that the tension is not lost.
Caution:
^ If the timing belt is being reused, install it so that the arrow put on it when it was removed is pointing in the direction of rotation.
7. Loosen the tensioner lock bolt so that tension is applied by the spring.
8. Turn the crankshaft twice in the direction of forward rotation (to the right). This will apply equal tension to each side of the timing belt.
9. Tighten the tensioner lock bolt.
^ Tensioner lock bolt tightening torque: 37-52 Nm (27.5 38.3 ft.lb).
10. Check to be sure that each timing mark is correctly aligned.
11. If necessary, measure the belt tension midway between the crank pulley and the camshaft pulley, and if the tension is not correct, repeat the adjustment from step 7. Also the belt tension can be checked by holding it between your thumb and forefinger to check the clearance, as shown in the image.
Caution:
^ Do not turn the crankshaft in the reverse direction.
^ Perform the above operation with the spark plugs removed.
^ The timing belt tension adjustment is an automatic spring adjustment; be sure not to apply tension other than that of the spring if the belt tension is incorrect, abnormal noise and/or reduced timing belt durability may result.