Detroit Diesel 4000 Series, Service Manual, Page: 461 / 2706

SERIES 4000 12/16V SERVICE MANUAL
7. Lower crankshaft slowly onto the upper main bearing shells. See Figure 241.
1. Bearing Installation
Figure 241 Lowering Crankshaft onto Upper Main Bearing Shells
8. Remove protective sleeves.
NOTE:
The crankshaft may not be turned before mounting the lower main bearings.
Engine oil is hot and can contain combustion residues
which are harmful to health. To avoid injury, wear protective
gloves. Avoid extended and intensive contact with skin.
Do not inhale oil vapor.
9. Clean the lower main bearing shell and main bearing cap, and coat the running surface
with engine oil.
10. Insert the lower main bearing shells with bearing installation tool.
NOTE:
The numbers of the main bearing cap locations must align and face toward the flywheel
end direction.
All information subject to change without notice.
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