Service Repair Manual
Models
16H NA Motor Grader
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Product: MOTOR GRADER
Model: 16H NA MOTOR GRADER 6ZJ
Configuration: 16H Motor Grader 6ZJ00001-UP (MACHINE) POWERED BY 3406C Engine
Disassembly and Assembly
3406C DIESEL ENGINES FOR CATERPILLAR BUILT MACHINES
Media Number -SENR6409-02
Publication Date -01/07/2006
Date Updated -19/05/2015
SENR64090038
Timing Gears & Plate
SMCS - 1162-010; 1206
Remove & Install Timing Gears & Plate
Start By:
a. remove timing gear cover
b. remove fuel injection pump housing and governor
1. Remove four bolts (2), plate (3) and idler gear (1).
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2. If the camshaft is not going to be removed, use Tool (A) to remove camshaft gear (4).
NOTICE
Do not turn the crankshaft with the camshaft gear removed. Damage
can be caused to the pistons and valves or both.
3. Remove bolts (5) that hold timing gear plate (6) to the cylinder block.
4. Remove timing gear plate (6).
5. Use Tool (B) to remove the bearing from the idler gear.
NOTE: The following steps are for the installation of the timing gears and plate.
6. Install a new gasket on the timing gear plate.
7. Put timing gear plate (6) in position on the cylinder block and install the bolts that hold the
timing gear plate to the cylinder block.
8. Heat camshaft gear (4) to a maximum temperature of 205° C (400° F) for no longer than three
hours and install it on the camshaft.
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9. Use Tool (B) and install the bearing in the idler gear.
NOTE: Set the gear on the front face (face with the timing marks). Drive the bearing from the
rear face toward the front face of the gear. Install the bearing to a depth of 1.5 ± 0.5 mm (.06 ± .02
in) below the rear face of the idler gear.
10. Inst