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486 PL ENGINE
P
Check connecting rod big end parent bore
dimensions Fig. 111
If connecting rod big end parent bore is slightly more
than maximum permissible limits, it is possible to
reclaim connecting rod provided the wear is confined
only to connecting rod bearing cap.
CAUTION :
l
Ensure that connecting rod big end and small
end axis are parallel to each other within
specified limits.
l
Center to center distance between connecting
rod small end and big end is maintained within
specified limits.
If one or more connecting rods are to be replaced,
Ensure that difference in weight of connecting rods
is within permissible limits.
According to size of crank pin journal diameter,
install new pair of connecting rod bearing shell.
Fig. 112
Install connecting rod bearing cap with bearing shell
on connecting rod and tighten to the specified torque.
Fig.113
Measure connecting rod bearing bore.
Measure pretension of connecting rod bearing shell
with a feeler gauge after loosening connecting rod
bearing cap mounting nut on opposite side of bearing
shell lug. Fig. 114
Warning :
Connecting rod bearing shell should not
be bored or scraped, as they are precision finished.
Fig. 114
Fig. 113
Fig. 112
Fig. 111