Detroit Diesel MBE 4000 Service Manual page 215

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4. Measure each rocker arm mounting bolt. Replace each bolt longer than 91 mm (3.6
inches), as listed in Table 1-46.
Size
M12
M12
Table 1-46
5. Remove the valve bridge from each set of valves, intake and exhaust.
6. Inspect the valve bridges for wear. If necessary, replace any worn valve bridge(s).
1.21.2
Disassemble the rocker arm unit as follows:
1. Remove the rocker arm assembly from the cylinder head. Refer to section 1.21.1.
2. Remove the snap rings from each end of the rocker arm shaft. See Figure 1-129.
1. Snap Ring
2. Washer
3. Exhaust Rocker Arm
4. Rocker Support
Figure 1-129
All information subject to change without notice.
6SE412 0403 Copyright © 2004 DETROIT DIESEL CORPORATION
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Max. Shaft Length
91 mm (3.6 in)
91 mm (3.6 in)
Specifications, Rocker Arm Mounting Bolts
Rocker Arm Disassembly
Rocker Arm Components
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5. Intake Rocker Arm
6. Locknut
7. Adjusting Screw
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MBE 4000 SERVICE MANUAL
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Torque Value
60 N·m (44 lb·ft)
additional 90
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1-167