Grand Cherokee 2WD Limited V8-4.7L (2002)
18. Using Special Tool 6958, Spanner with Adaptor Pins 8346, tighten left (Fig. 131) and right (Fig. 132). Camshaft sprocket bolts to 122 Nm (90 ft.
lbs.).
19. Rotate engine two full revolutions. Verify timing marks are at the follow locations:
^
primary chain idler sprocket dot is at 12 o'clock (Fig. 127)
^
primary chain crankshaft sprocket dot is at 6 o'clock (Fig. 127)
^
secondary chain camshaft sprockets "V8" marks are at 12 o'clock (Fig. 127)
20. Lubricate all three chains with engine oil.
21. After installing all chains, it is recommended that the idler gear end play be checked (Fig. 133). The end play must be within 0.10 - 0.25 mm
(0.004 - 0.010 in.). If not within specification, the idler gear must be replaced.
22. Install timing chain cover and crankshaft damper.
23. Install cylinder head covers.
NOTE: Before installing threaded plug in right cylinder head, the plug must be coated with sealant to prevent leaks.
