Section 03 ENGINES
Subsection 06 (BOTTOM END)
F12R18A
TYPICAL
Screw all crankcase bolts in place in the following
sequence and to the appropriate torque through a
two steps torquing: first, screw bolts up to 60%
of the final torque 13 N•m(115lbf•in)forM8
bolts), then, tighten to the required torque (i.e.
22 N•m(16lbf•ft).
377 Engine
10
8 14
4
2
12
6
5
11
31
13
79
A
A
A09C05A
TIGHTENING SEQUENCE FOR 377 ENGINE TYPE
A. 10 N•m(89lbf•in)
All the other screws are torqued to 22 N•m
(16 lbf•ft)
552 Engine
A17C08A
1131
7
913 5
14 10
6
4 2 8 12
TIGHTENING SEQUENCE FOR 552 ENGINE TYPE
BREAK-IN
After rebuilding an engine always observe a break-
in period as described in Operator’s Guide.
118 mmr2005-073
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