Express 1500 RWD V6-4.3L VIN X (2005)
Timing Chain: Service and Repair
Timing Chain and Sprockets Replacement
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Tools Required
-
J 5825-A Crankshaft Gear Remover
-
J 5590 Pinion Bearing Race Installer - Rear
Removal Procedure
1. Remove the engine front cover.
2. Remove the crankshaft position sensor reluctor ring.
Notice: In order to rotate the engine install a bolt with the same threads as the crankshaft, but do not use the crankshaft balancer bolt or a bolt
longer than 1 inch, in the crankshaft. Failing to do so will cause damage to the bolt threads and the crankshaft threaded hole when removing the
bolt.
3. Install a 7/16-20 x 1 inch bolt into the end of the crankshaft.
Notice: Align the timing marks before removing the timing chain. If it is necessary to turn either the camshaft or the crankshaft with the timing
chain removed, loosen or remove the valve rocker arms. Turning either the crankshaft or camshaft with the timing chain removed may cause the
pistons to contact the valves, resulting in damage.
4. Rotate the crankshaft until:
4.1.
The timing marks on both sprockets line up.
4.2.
The number four cylinder is at top dead center (TDC) of the compression stroke.
