Detroit Diesel MBE 4000 Service Manual page 196

1.19 VALVES
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4. Using the cranking tool, turn the crankshaft until cylinder #1 is at the ignition TDC position
(all valves are closed) and cylinder #6 is at the valve overlap position (all valves are open).
NOTE:
When the piston in cylinder #1 or #6 is at ignition TDC, there will be a small bevelled
alignment mark visible through the inspection hole. See Figure 1-114.
Figure 1-114
5. Check the valves in the "Ignition TDC" row listed in Table 1-37, and adjust them
(if necessary), using the procedures under the headings "Checking Valve Lash" and
"Adjusting Valve Lash."
Engine Cylinder #1
Crankshaft
Position
MBE 4000 Ignition
TDC
MBE 4000 Valve
Overlap
* I= Intake Valve and E= Exhaust Valve
Table 1-37 Valve Adjustment (Method Two)
6. Using the cranking tool, turn the crankshaft until cylinder #6 is at the ignition TDC position
(all valves are closed) and cylinder #1 is at the valve overlap position (all valves are open).
1-148
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Flywheel Alignment Mark
Cylinder Cylinder
Valves/Types* Valves/Types*
1 2
I/E I
— E
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Cylinder Cylinder
Valves/Types* Valves/Types*
3 4
E I
I E
6SE412 0403 Copyright © 2004 DETROIT DIESEL CORPORATION
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Cylinder Cylinder
Valves/Types* Valves/Types*
5 6
E —
I I/E
All information subject to change without notice.
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