
RENR9716-02 87
Disassembly and Assembly Section
g01149952
Illustration 253
3. Install Tooling (A) in the oil hole of the crankshaft.
Carefully rotate the crankshaft in order to remove
upper main bearing (4) from the cylinder block.
Note: Push the upper main bearing from the opposite
side of the bearing tab with Tooling (A). If the
crankshaft is turned in the wrong direction, the tab on
the bearing will be pushed between the crankshaft
and the bearing area of the cylinder block. This can
result in damage to the cylinder block and/or the
crankshaft.
4. Removethethrustplatesfromeachsideofthe
No. 4 main bearing.
5. Remove the lower halves of the main bearings
from the main bearing caps.
i02296049
Cranksh aft Main B earing s -
Insta ll
SMCS Code: 1203-012
Installation Procedure
Table 67
Required Tools
Tool Part Number Part Description Qty
A 2P-5518 Bearing Tool 1
B
8T-5096
Dial Indicator 1
C
8T-3052 Degree Wheel 1
NOTICE
Keep all parts clean from contaminants.
Contamina
nts may cause rapid wear and shortened
component life.
Note: Install the main bearings dry when clearance
checks are perf
ormed. Refer to Disassembly and
Assembly, “Bearing Clearance - Check”. Apply clean
engine oil on the main bearings for final assembly.
Note: Ensure that the main bearings are installed
so that bearing tabs fit into the notch in the cylinder
block. The up
per halves of the main bearings have
the oil groove and the oil hole.
g01149952
Illustration 254
1. Position new upper main bearing (4) on the
crankshaft. Insert the end of the upper main
bearing that does not have the tab into the cylinder
block. Install Tooling (A) in the oil hole of the
crankshaft. Carefully rotate the crankshaft in order
to push the upper main bearing into the cylinder
block.
Note: Push the upper main bearing from the side of
the bearing tab with Tooling (A). If the crankshaft is
turned in the wrong direction, the tab on the bearing
will be pushed between the crankshaft and the
bearing area of the cylinder block. This can result in
damage to the cylinder block and/or the crankshaft.
2. Install the thrust plates on each side of the No. 4
main bearing.
Note: Install the thrust plates with the words “Block
Side” toward the cylinder block.
3. Install the lower halves o f the crankshaft main
bearings in the main bearing caps.
Note: Ensure that the main bearings are installed so
that bearing tabs fit into the notch in the main bearing
caps.