Crankshaft and Connecting Rods
Connecting Rod Installation
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.
Apply molybdenum disulfide oil solution [A] to the inner
surfaces of upper and lower bearing inserts.
Apply molybdenum disulfide grease to the connecting rod
big end inside surface [B].
Do not apply any grease or oil to the cap inside and cap
insert outside [C].
Install the inserts so that their nails [D] are on the same
side and fit them into the recess of the connecting rod and
Wrong application of oil and grease could cause
When installing the inserts [A], be careful not to damage
the insert surface with the edge of the connecting rod [B]
or the cap [C]. One way to install inserts is as follows.
Installation [D] to Cap
Installation [E] to Connecting Rod
Spare Dowel Pin [G]
Connecting Rod Bolts [H]
Remove debris and clean the surface of inserts.
Install the cap on the connecting rod, aligning the weight
and diameter marks.
Apply molybdenum disulfide oil solution [MO] to the
threads and seating surfaces of the big end nuts and
" or no mark