Crankshaft and Connecting Rods
Connecting Rod Installation
If the crankshaft is replaced with a new one, refer to
the Connecting Rod Big End Bearing/Crankshaft Main
Bearing Insert Selection in the Specifications.
To minimize vibration, the connecting rods should
have the same weight mark.
Big End Cap [A]
Connecting Rod [B]
Weight Mark, Alphabet [C]
Diameter Mark [D]: "
If the connecting rods, big end bearing inserts, or
crankshaft are replaced with new ones, select the
bearing insert and check clearance with a plasti-
gage (press gauge) before assembling engine to be
sure the correct bearing inserts are installed.
Remove dust and clean the inserts installation surface of
the connecting rod.
Install the inserts so that their nails [A] are on the same
side and fit them into the recess of the connecting rod and
When installing the inserts [B], be careful not to damage
the insert surface with the edge of the connecting rod [C]
or the cap [D]. One way to install inserts is as follows.
Installation [E] to Cap
Installation [F] to Connecting Rod
Spare Dowel Pin [H]
Connecting Rod Bolts [I]
Remove dust and clean the surface of the inserts.
Apply molybdenum disulfide oil solution to the inner sur-
face [J] of the upper and lower bearing inserts.
Wrong application of oil and grease could cause
bearing damage. Be careful to part of the applica-
Apply molybdenum disulfide oil solution to the threads [K]
and seating surface [L] of the connecting rod nuts.
Install the crankshaft (see Crankshaft Installation).
Install each connecting rod on its original crankpin, align-
ing the weight and diameter marks.
" or no mark