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TM 10-4320-351-14
m.
Install key (8) on flywheel end of crankshaft (3).
n.
With crankshaft gear (7) timing mark facing flywheel end, install hot crankshaft gear over key (8) on crankshaft
(3). Allow crankshaft gear (7) to cool down. Remove screwdriver and thickness gage from crankcase.
o.
Check crankshaft end float clearance between crankcase and crankshaft gear (3). Clearance should be 0.004-
0.0008 in. (0.10-0.20 mm). Crankshaft (3) should turn freely.
6.4.2 Install Rear Crankshaft Support. (Refer to figure 6-24.)
This task consists of:
a. Installation
INITIAL SET-UP:
Tools:
Materials/Parts Required:
Wrench, Torque, 200 in lb
Seal (Appendix I, Item 10)
(Appendix B, Section III, Item 3)
Bearing (Appendix I, Item 13)
Extension, 6 in., 3/8 in. Drive
O-Ring (Appendix I, Item 25)
(Appendix B, Section III, Item 3)
Socket, Socket Wrench, 6 mm
(Appendix B, Section III, Item 3)
Bushing Extractor Tool, P/N 7736590
Equipment Condition:
(Appendix B, Section III, Item 3)
Rear crankshaft support removed (para. 6.3.17)
NOTE
Alignment of rear main bearing (1) oil passage hole (2) and rear crankshaft support
(3) oil holes must be maintained during installation of rear main bearing.
a.
Using bushing extractor tool, install engine rear main bearing (1) in rear crankshaft support (3).
b.
Install rear engine oil seal (4) in rear crankshaft support (3).
c.
Install O-ring (5) on rear crankshaft support (3).
NOTE
Two of the socket head cap screws (6) are slightly shorter than the other eight.
They are to be inserted at the 11 and 12 o'clock screw holes.
d.
Position rear crankshaft support (3) and install ten socket head cap screws (6) attaching engine rear crankshaft
support to crankcase.
e.
Using a crossing pattern, torque socket head cap screws (6) to 190-195 in. lbs (21-23 Nm).
6-39
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