Detroit Diesel MBE 4000 Service Manual page 197

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7. Using the same procedure, check the valves in the "Valve Overlap" row listed in Table 1-37

and adjust them (if necessary), using the procedures under the headings "Checking Valve

Lash" and "Adjusting Valve Lash."

8. 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.

9. If the value measured is within the range listed in Table 1-38 in the "Check For" column,

check the next valve.

If the value measured is outside the range given in the "Check For" column listed in Table 1-36,

adjust the valve lash.

Adjust the valve lash as follows:

All information subject to change without notice.

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Check For: mm (inches)

0.30 to 0.60 (0.012 to 0.024)

0.50 to 0.80 (0.020 to 0.032)

Valve Lash Checking and Adjustment

Valve Lash Adjusting

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MBE 4000 SERVICE MANUAL

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Adjust to: mm (inches)

0.40 (0.016)

0.60 (0.024)

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