ENGINE MECHANICAL SERVICE MANUAL NUMBER 22
Page 3A-128 90-860074--1 FEBRUARY 2002
TIMING GEAR
IMPORTANT: The early model crankshaft gear has been superseded to a new gear.
A spacer is required behind the new gear to install.
Description
D2.8L D-Tronic D4.2L D-Tronic
Serial Numbers Breaks: for engines
using late model gear and spacer
0L344916 And Above 0L344986 and Above
1. Warm the gear in a suitable oven to 180 - 200 degrees C (356 - 392 degrees F.).
2. Ensure timing reference dots are facing the FRONT of the engine.
3. Ensure crankshaft keyway and woodruff key are aligned.
4. On early models, install the timing gear. On later models or if replacing the early gear,
install the new spacer and timing gear.
70309
a
b
a-Timing Gear
b-Spacer, If Equipped (Not shown)
MAIN BEARING CARRIERS AND BEARINGS
1. Install new bearing shells into matching carrier halves.
2. Lubricate bearings with clean engine oil.
70307
a
b
a-Main Bearing Shells
b-Main Bearing Carrier - Matching Halves
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