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 grease [A] to the outer sur-
face of the upper insert and the inner surface of the con-
necting rod big end.
Apply molybdenum disulfide oil solution [B] to the inner
surfaces of upper and lower bearing inserts.
The molybdenum disulfide oil solution is a mixture of en-
gine oil and molybdenum disulfide grease with a weight
ratio (10 : 1).
Do not apply any grease or oil [C] to the cap inside and
cap insert outside.
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]
Install the cap on the connecting rod, aligning the weight
and diameter marks.
Remove debris and clean the surface of inserts.
Apply molybdenum disulfide oil solution [MO] to the
threads and seating surfaces of the big end nuts and
" or no mark