Crankshaft and Connecting Rods
(2) Rotation Angle Method
If you do not have a point micrometer, you may tighten
the nuts using the "Rotation Angle Method".
Be sure to clean the bolts, nuts and connecting rods thor-
oughly with a high flash-point solvent, because the new
connecting rods, bolts and nuts are treated with an anti
Gasoline and low-flash point solvents can be
flammable and/or explosive and cause severe
burns. Clean the bolts, nuts, and connecting rods
in a well-ventilated area, and take care that there
are no sparks or flame anywhere near the working
area; this includes any appliance with a pilot light.
Do not use gasoline or a low-flash point solvent to
Immediately dry the bolts and nuts with com-
pressed air after cleaning.
Clean and dry the bolts and nuts completely.
Install new bolts and nuts in reused connecting rods.
If the connecting rod assy was replaced, use the bolts and
nuts attached to the new connecting rod assy.
Apply a small amount of molybdenum disulfide oil solution
to the following portions.
Threads [A] of Bolts and Nuts
Seating Surfaces [B] of Nuts and Connecting Rod Caps
First, tighten the nuts to the specified torque. See the
Next, tighten the nuts 120° ±5° .
Mark [A] the connecting rod big end caps and nuts so that
nuts can be turned 120° [B] properly.
Tighten the hexagon nut by 2 corners.
Use the bolts
bolts with new
Torque + Angle
N·m (kgf·m, ft·lb)
22 (2.2, 16)
new con-rod + 120°
20 (2.0, 15)
26 (2.7, 19)
26 (2.7, 19)