Grand Cherokee 2WD V8-4.7L VIN J (2004)
7. Install both secondary chains onto the idler sprocket. Align two plated links on the secondary chains to be visible through the two lower openings
on the idler sprocket (4 o'clock and 8 o'clock). Once the secondary timing chains are installed, position special tool 8515 to hold chains in place
for installation (Fig. 129).
8. Align primary chain double plated links with the timing mark at 12 o'clock on the idler sprocket. Align the primary chain single plated link with
the timing mark at 6 o'clock on the crankshaft sprocket (Fig. 127).
9. Lubricate idler shaft and bushings with clean engine oil.
10. Install all chains, crankshaft sprocket, and idler sprocket as an assembly (Fig. 130). After guiding both secondary chains through the block and
cylinder head openings, affix chains with an elastic strap or the equivalent, This will maintain tension on chains to aid in installation.
NOTE: It will be necessary to slightly rotate camshafts for sprocket installation.
11. Align left camshaft sprocket "L" dot to plated link on chain.
12. Align right camshaft sprocket "R" dot to plated link on chain.
