REPAIR INSTRUCTIONS, PART 3
Page 287
Valve and Unit Injector Adjustment
[213 NB, 222 KG]
421
Figure 421 — Inlet/Exhaust Valve and Injector Timing Components
GENERAL INFORMATION
Timing marks for basic camshaft timing and
adjustment of the valves and unit injectors are
located at the rear of the camshaft just forward of
the No. 7 rear bearing journal. Two lines at the top
of the rear bearing cap mark the alignment point
for positioning of the camshaft and making the
adjustments.
The top dead center (TDC) mark is used for basic
camshaft timing. The TDC mark must be between
the two lines on the camshaft rear bearing cap
when the flywheel is at 0° (top dead center for
cylinder No. 1).
Engines without PowerLeash™ — Adjust the
inlet valves, exhaust valves and injectors using
the timing marks 1–6 on the camshaft.
Engines with PowerLeash™ — Adjust the inlet
valves and injectors using the timing marks 1–6
on the camshaft. Adjust the exhaust valves using
the timing marks with a V in front of the number,
V1–V6.
1. Inlet Valve Rocker Arm
2. Injector Rocker Arm
3. Exhaust Valve Rocker Arm
4. Camshaft Timing Gear
5. Camshaft Bearing Bracket and Cap
6. Rocker Arm Roller
7. Valve Yoke (Bridge)
8. Camshaft Vibration Damper
9. Camshaft Position Sensor Teeth
10. Valve Adjustment Reference Marks
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