Timing Belt Timing Procedure
Timing Belt Timing ProcedureTools Required
^ J42069 Timing Belt Alignment Kit
^ J42098 Crank Hub TORX� Socket
Timing Belt Adjustment Checking
Important: The following steps are the continuation of the Timing Belt Replacement and must not be performed as a stand-alone operation.
It is not uncommon to repeat steps and make several engine revolutions to achieve the proper level of timing belt adjustment.
1. Apply the J42069-20 to camshaft gears 1 and 2.
2. Inspect the relationship of the marks on the camshaft gears to the marks on the J42069-20. They must match exactly, if not, timing belt adjustment is required.
3. Continue to the next applicable procedure:
Marks on Camshaft Gears 1 and 2 Align to the LEFT of J42069-20
1. Loosen the upper idler pulley bolt.
Notice: Use the J42069-40 to turn the eccentric on the upper idler pulley COUNTERCLOCKWISE until the marks on the camshaft gears and on the J42069-20 are in alignment, the high point of the idler pulley eccentric will be in approximately the 9 o'clock position.
2. Tighten the upper idler pulley bolt, while holding the eccentric in place with the J42069-40 to prevent movement, to 40 Nm (30 ft. lbs.).
3. Remove the J42069-10 and the J42069-20.
4. Rotate the crankshaft in the engine rotational direction, clockwise 2 revolutions using the J42098 until reaching 60 degrees Before Top Dead Center (BTDC). The 60 degrees BTDC point can be identified by the index mark on the oil pump cover.
Important: Ensure the moveable lever is positioned toward the crankshaft.
5. Install the J42069-10 to the crankshaft sprocket with the knurled bolt.
6. Rotate the crankshaft in the engine rotational direction, clockwise using the J42098 until the lever of the J42069-10 firmly contacts the water pump pulley flange. The #1 cylinder is at Top Dead Center (TDC) at this point.
7. Secure the moveable lever of the tool to the water pump pulley flange.
Important: Ensure that the crankshaft is not 180 degrees off TDC.
The reference marks on the camshaft gears should be aligned with the corresponding notches on the rear timing belt cover at this point. If they are not aligned, the engine is 180 degrees off.
8. Install the J42069-20 to camshaft gears 1 and 2.
9. Inspect the alignment of the marks on the camshaft gears in reference to the marks on the J42069-20.
10. Repeat the procedure again if the marks do not align.
11. If camshaft gears 1 and 2 are properly aligned, set the final timing belt tensioner as outlined in Timing Belt Tensioner Adjustment at the end of this procedure.
Marks on Camshaft Gears 1 and 2 Align to the RIGHT of J42069-20
1. Loosen the upper idler pulley bolt.
2. Slacken the timing belt by turning the eccentric on the upper idler pulley CLOCKWISE with the J42069-40 until the marks on the camshaft gears and the marks on the J42069-20 are in alignment, the high point of the idler pulley eccentric will be in approximately the 9 o'clock position.
Tighten the upper idler pulley bolt, while holding the eccentric in place with the J42069-40 to prevent movement, to 40 Nm (30 ft. lbs.).
3. Remove the J42069-10 and the J42069-20.
4. Rotate the crankshaft in the engine rotational direction, clockwise 2 revolutions using the J42098 until reaching 60 degrees Before Top Dead Center (BTDC). The 60 degrees BTDC point can be identified by the index mark on the oil pump cover.
Important: Ensure the moveable lever is positioned toward the crankshaft.
5. Install the J42069-10 to the crankshaft sprocket with the knurled bolt.
6. Rotate the crankshaft in the engine rotational direction, clockwise using the J42098 until the lever of the J42069-10 firmly contacts the water pump pulley flange. The #1 cylinder is at Top Dead Center (TDC) at this point.
7. Secure the moveable lever of the tool to the water pump pulley flange.
Important: Ensure that the crankshaft is not 180 degrees off TDC.
The reference marks on the camshaft gears should be aligned with the corresponding notches on the rear timing belt cover at this point. If they are not aligned, the engine is 180 degrees off.
8. Install the J42069-20 to camshaft gears 1 and 2.
9. Inspect the alignment of the marks on the camshaft gears in reference to the marks on the J42069-20.
10. Repeat the procedure again if the marks do not align.
11. If camshaft gears 1 and 2 are properly aligned, set the final timing belt tensioner as outlined in Timing Belt Tensioner Adjustment at the end of this procedure.
Timing Belt Tensioner Adjustment
Important: The following steps are the COMPLETION of adjusting the timing belt and must not be performed as a stand alone operation.
1. With the J42069-10 in place locking the crankshaft at TDC:
1. Loosen the timing belt eccentric locking nut.
2. Turn the eccentric counter clockwise to full stop, then back to the following specification:
^ NEW BELT until the reference mark is 3 - 4 mm (0.118 - 0.157 inch) (a) above the datum line.
^ USED BELT until the reference mark is aligned with the datum line.
Tighten the timing belt tensioner eccentric locking nut to 20 Nm (15 ft. lbs.).
2. If the timing belt upper idler pulley bolt has not been previously torqued to specification:
Tighten the timing belt upper idler pulley bolt while holding the eccentric in place with the J42069-40 to prevent movement, to 40 Nm (30 ft. lbs.).
3. Remove the J42069-10 and the J42069-20.
4. For final inspection, once again rotate the crankshaft in the engine rotational direction, clockwise 2 revolutions using the J42098 until reaching 60 degrees BTDC.
5. Install the J42069-10 to the crankshaft sprocket.
6. Rotate the crankshaft in the engine rotational direction, clockwise using the J42098 until the lever of the J42069-10 firmly contacts the water pump pulley flange.
7. Secure the moveable lever of the tool to the water pump pulley flange.
Important: The alignment marks on the timing belt will no longer align with the marks on the camshaft gears after one or more engine revolutions.
8. Inspect the alignment of the reference marks on the camshaft gears with the notches on the rear timing belt cover, as well as the mark on the crankshaft sprocket and oil pump housing.
9. Use the J42069-20 to inspect the alignment of the camshaft gears 3 and 4.
10. Use the J42069-20 to inspect the alignment of the camshaft gears 1 and 2.
11. Repeat the procedure again if the marks do not align exactly.
12. If the reference marks match exactly, further timing belt adjustment IS NOT necessary. Continue with reassembly of the engine.
13. Remove the J42069-10 and the J42069-20.
14. Install the crankshaft balancer.
15. Install the timing belt cover.