Detroit Diesel MBE 4000 Service Manual page 111

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3. Install the upper bearing shells into the block, in the same order as they were removed.
Make sure the locking lugs of the bearing shells fit into the slots of the block bores.
Refer to section 1.9.2.2.
NOTE:
The center bearing shell halves must be mounted in the center crankcase race and
bearing cap (fourth from either end).
4. Install the lower bearing shells into the main bearing caps, in the same order as they
were removed. Make sure the locking lugs are fully seated in the grooves of the bearing
caps. Refer to section 1.9.2.2.
5. Screw a crankshaft and flywheel guide stud into each end of the crankshaft.
To avoid injury from a falling component, ensure a proper
lifting device is used.
6. Using a suitable hoist, lower the crankshaft into the block.
7. As you set the crankshaft into the block, use the guide studs to maneuver the crankshaft
into position to align the crankshaft gear with the camshaft gear. Fit the marked gear
tooth on the crankshaft gear between the two marked teeth on the camshaft gear.
See Figure 1-43.
8. Install all the main bearing caps (including the center bearing cap), with their bearing
shells, on the crankcase journals, as removed. See Figure 1-44.
NOTE:
Make sure the numbers on the bearing caps are in ascending order, starting from the
front of the engine.
All information subject to change without notice.
6SE412 0403 Copyright © 2004 DETROIT DIESEL CORPORATION
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FALLING COMPONENT
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MBE 4000 SERVICE MANUAL
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1-63
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