Detroit Diesel MBE 4000 Service Manual page 162

1.17 PISTON, PISTON RING, AND CONNECTING ROD
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10. Measure the connecting rod stretch bolts. Replace any bolts that exceed the maximum
length of 68.5 mm (2.70 inches). See Figure 1-87. Lubricate the stretch bolt threads
with a light coating of engine oil.
1. Shank
Figure 1-87
11. Install the bearing cap on the connecting rod and hand-tighten the stretch bolts. Be sure
that the marks on the cap and the rod match. See Figure 1-80.
12. Tighten the M16 x 1.5 connecting rod stretch bolts alternately. Tighten each one in turn to
the first stage and then go on to the next stage. Listed in Table 1-24.
Max. Shaft Length
68.5 mm (2.70 in.)
Table 1-24 Tightening Stages, Connecting Rod Stretch Bolts
13. Check the connecting rod end play (axial play). Refer to section 1.17.3.2.
14. Rotate the crankshaft to make sure it turns freely.
NOTE:
If it is necessary to turn the crankshaft and the flywheel has been removed, install the
flywheel guide studs in the crankshaft gear.
1-114
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Measuring a Stretch Bolt
Tightening Stage
Stage 1
Stage 2
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100-115 N·m (74-85 lb·ft)
additional 90-100
6SE412 0403 Copyright © 2004 DETROIT DIESEL CORPORATION
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Torque Value
All information subject to change without notice.
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