92. Timing Belt Timing Adjustment
Timing Belt Timing ProcedureImportant: The following steps are the continuation of installing the timing belt 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 J 42069-20 checking gage to camshaft gears 1 and 2.
2. Inspect the relationship of the marks on the camshaft gears to the marks on the J 42069-20 checking gage. 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 J 42069-20
1. Loosen the timing belt idler pulley for camshaft gears 1 and 2.
2. Use the J 42069-40 adjustment wrench to turn eccentric on the idler pulley COUNTERCLOCKWISE until the marks on the camshaft gears and on the J 42069-20 checking gage are in alignment, the high point of the idler pulley eccentric will be in approximately the 9 o'clock position.
Tighten the timing belt idler pulley bolt, while holding the eccentric in place with the J 42069-40 adjustment wrench to prevent movement, to 40 Nm (30 ft. lbs.).
3. Remove the J 42069-10 crankshaft locking tool and the J 42069-20 checking gage.
4. Turn the crankshaft in the engine rotational direction 2 revolutions with the J 42098. Stop at 60 degrees BTDC.
5. Install the J 42069-10 crankshaft locking tool to the crankshaft drive gear with the knurled bolt.
6. Use the J 42098 to carefully turn the crankshaft until the lever of the J 42069-10 firmly contacts the water pump pulley flange.
7. Secure the moveable lever of the tool to the water pump pulley flange.
8. Install the J 42069-20 checking gage to camshaft gears 1 & 2.
9. Inspect the alignment of the marks on the camshaft gears in reference to the marks on the J 42069-20 checking gage.
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 J 42069-20
1. Loosen the timing belt idler pulley for camshaft gears 1 and 2.
2. Slacken the timing belt by turning the eccentric on the idler pulley CLOCKWISE with the J 42069-40 adjustment wrench until the marks on the camshaft gears and the marks on the J 42069-20 checking gage are in alignment, the high point of the idler pulley eccentric will be in approximately the 9 o'clock position.
Tighten the timing belt idler pulley bolt, while holding the eccentric in place with the J 42069-40 adjustment wrench to prevent movement, to 40 Nm (30 ft. lbs.).
3. Remove the J 42069-10 crankshaft locking tool and the J 42069-20 checking gage.
4. Turn the crankshaft in the engine rotational direction 2 revolutions with the J 42098. Stop at 60 degrees BTDC.
5. Install the J 42069-10 crankshaft locking tool to the crankshaft drive gear with the knurled bolt.
6. Use the J 42098 to carefully turn the crankshaft until the lever of the J 42069-10 firmly contacts the water pump pulley flange.
7. Secure the moveable lever of the tool to the water pump pulley flange.
8. Install the J 42069-20 checking gage to camshaft gears 1 and 2.
9. Inspect the alignment of the marks on the camshaft gears in reference to the marks on the J 42069-20 checking gage.
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.