Detroit Diesel MBE 4000 Service Manual page 193

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3. Fit the engine cranking tool (J 46167 or 407 589 00 63 00) into the inspection hole on

the flywheel housing. See Figure 1-111.

1. Inspection Cover

Figure 1-111

4. For each cylinder, use the cranking tool to turn over the crankshaft until the piston is

exactly at top dead center (TDC) in the compression stroke. The valves must be closed

and it must be possible to turn the pushrods without effort.

When the piston in cylinder #1 is at ignition TDC, the valves of cylinder #6 will overlap,

meaning that both intake and exhaust valves are partially open, and show no measurable

play when tested with a feeler gauge.

5. Check each valve and adjust it (if necessary), using the procedures under the headings

"Checking Valve Lash" and "Adjusting Valve Lash."

6. For each valve, measure the valve lash with a feeler gauge between the rocker arm and

valve bridge. It should be possible to pull the feeler gauge through with no more than

light resistance.

All information subject to change without notice.

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Placement of the Cranking Tool

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MBE 4000 SERVICE MANUAL

2. Cranking Device

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