70. Timing Chain and Sprocket Installation
Timing Chain and Sprockets Installation
Tools Required
* J 22102 Front Cover Oil Seal Installer
* J 7872 Magnetic Base Dial Indicator Set
1. Properly install the crankshaft key into the crankshaft keyway, if removed.
Important: If the sprocket(s) are being replaced, replace both sprockets to ensure that timing chain centerline alignment is maintained.
2. Install and align the keyway of the crankshaft sprocket with the crankshaft key.
Important: The crankshaft sprocket is installed with the timing mark visible from the front and the chamfer on the crankshaft sprocket bore installed towards the crankshaft/engine block.
3. Install the crankshaft sprocket using the J 22102 .
4. Rotate the crankshaft until the crankshaft sprocket alignment mark is in the 12 o'clock position.
5. Rotate the camshaft until the camshaft alignment pin is in the 3 o'clock position.
Notice: The sprocket teeth must mesh with the timing chain in order to prevent damage to the camshaft retainer.
Notice: Do not hammer the camshaft sprocket onto the camshaft. To do so may dislodge the rear camshaft plug and damage the camshaft.
Important: Ensure the camshaft alignment pin is engaged with the camshaft sprocket slot.
Important: Install the camshaft sprocket with the alignment mark in the 6 o'clock position.
6. Install the camshaft sprocket and timing chain.
7. Look to ensure that the crankshaft sprocket mark is aligned at the 12 o'clock position and the camshaft sprocket mark is aligned at the 6 o'clock position.
Notice: Refer to Fastener Notice in Cautions and Notices.
8. Install camshaft sprocket bolts.
Tighten the camshaft sprocket bolts to 30 Nm (22 lb ft).
9. Inspect the camshaft sprocket-to-camshaft retainer clearance to ensure that there is no binding condition using the J 7872 . The end play should measure 0.050-0.275 mm (0.002-0.011 in).
Important: If the crankshaft sensor reluctor ring has been removed from the crankshaft, a new crankshaft sensor reluctor ring must be installed.
10. Install and align the keyway of the crankshaft position reluctor ring with the crankshaft key.
Important: Ensure the J 22102 contacts the crankshaft balancer contact area of the crankshaft position reluctor ring in order to prevent bending or damage to the crankshaft position reluctor ring teeth.
Important: It should be necessary to apply only light force in order to install the crankshaft position reluctor ring with the J 22102 .
11. Use the J 22102 in order to install the crankshaft position reluctor ring onto the crankshaft until the ring is completely seated against the crankshaft sprocket.