Detroit Diesel MBE 4000 Service Manual page 189

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[c] Using the engine cranking tool (J 46167 or 407 589 00 63 00), turn the flywheel in a
counterclockwise direction (as viewed from the flywheel end).
NOTE:
The dial gauge will show the highest reading when the valve is completely open.
[d] When the valves are completely open, read off the value on the dial gauge. If the
intake valve lift reaches at least 11.546 mm (0.4546 inch) at its highest point, the
intake valves are lifting OK. Check the exhaust valves.If the intake valve lift fails to
reach 11.546 mm (0.4546 inch) at its highest point, remove the camshaft and inspect
the cams for wear. Refer to section 1.22.1.
NOTE:
If the gauge reading fails to reach 11.546 mm (0.4546 inch), be sure the valves were
completely open. The dial gauge will show the highest reading when the valve is
completely open.
6. Check the lift on the exhaust valves. See Figure 1-108.
1. Dial Gauge
2. Gauge Holder
3. Exhaust Rocker Arm
Figure 1-108
[a] Turn the flywheel in a counterclockwise direction until both valves are closed.
All information subject to change without notice.
6SE412 0403 Copyright © 2004 DETROIT DIESEL CORPORATION
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Checking Valve Lift, Exhaust Valves
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MBE 4000 SERVICE MANUAL
4. Pushrod
5. Exhaust Valve
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1-141
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