TM 5-3895-382-24
5.
Push upper main beating (4) from the opposite side of
the beating tab with a suitable tool. Carefully rotate the
crankshaft while you push on the beating. Remove
upper main bearing (4) from the cylinder block. Keep
the upper beating halves together in order to ensure
proper installation.
6.
Repeat Steps 1 through 5 for the remaining main
beatings.
Crankshaft Main Bearings - Install
SMCS Code: 1203-012
Installation Procedure
Table 39
Required Tools
Tool
Part
Number
Part Description
Qty
A(1)
9U-6282
Torque Wrench Extension
1
B
8T-5096
Dial Indicator
1
(1)
Tool (A) must be used in order to install the front main
bearing cap with the front housing and the engine oil
pump in place.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened
component life.
Illustration 207
1.
Clean upper main beating (4) and lubricate the beating
surface with clean engine oil.
NOTE:
Ensure that the upper halves of the main beatings
are installed so that the beating tabs fit into the
notch in the cylinder block.
NOTICE
Only the upper half of the main bearing has lubrication
holes. Make sure the upper half of the main bearing is
installed correctly in the cylinder block to ensure proper
lubrication.
2.
Slide upper main beating (4) into position between the
crankshaft journal and the cylinder block.
Illustration 208
3.
Clean main beating cap (2) and lower main beating (3).
Lubricate the beating surface of lower main beating (3)
with clean engine oil.
NOTE:
Ensure that the lower halves of the main beatings
are installed so that the beating tabs fit into the
notch in the main bearing caps.
4.
Install lower main beating (3) in main bearing cap (2).
Illustration 209
5.
Make sure that the beating tabs on both halves of the
main bearings are located on the same side. Install
main beating caps (2).
6.
Lubricate the threads of bolts (1) with clean engine oil.
7.
Install bolts (1) and tighten the bolts to a torque of 250
Nm (185 Ib-ft). Use Tool (A) to tighten the bolts for the
front main bearing cap.
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