NEXON

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1.5L REVOTORQ ENGINE
159
connecting rod alignment gauge in vertical and
horizontal plane at a distance of 50 mm from
line joining centers of connecting rod small end
and big end bosses.
14.Check connecting rod big end parent bore
dimension.
connecting rod big end parent bore is slightly
more than maximum permissible limits, it is
possible to reclaim the connecting rod
provided the wear is confined only to
connecting rod bearing cap. In such cases the
connecting rod bearing cap mating surface can
be slightly faced. The parent bore should then
be finished on a connecting rod boring
machine.
16.Ensure that the connecting rod big end and
small end axis are parallel to each other within
the specified limits. Centre to centre distance
between connecting rod small end and big end
is maintained within specified limits.
one or more connecting rods are to be
replaced, ensure that difference in weight of
connecting rod in one engine is within
permissible limits.
18.Install new pair of connecting rod bearing shell
according to size of crank pin journal diameter,
making sure that securing lugs of bearing
shells are properly seated in grooves of
connecting rod and its bearing cap.
NOTE
Lower and upper bearings are not
interchangeable.
19.Install connecting rod bearing cap with bearing
shell on connecting rod. Tighten connecting
rod bearing cap mtg. bolts to specified torque.
20.Measure connecting rod bearing bore. Record
the readings in the format given in this manual.
connecting rod big end parent bore
dimension is maintained within specified limits,
proper bearing bore dimension is automatically
achieved.
22.However, it must be physically measured and
confirmed. Measure pretension of connecting
rod bearing shell with a feeler gauge after
loosening connecting rod bearing cap
mounting bolt on opposite side of bearing shell
lug.
NOTE
Connecting rod bearing shells are precision
finished and should not be bored or scraped.