Crankshaft and Connecting Rods
Install the crankshaft (see Crankshaft Installation).
Install each connecting rod on its original crankpin.
Install each connecting rod so that its oil jet [A] faces the
exhaust side (the front [B]) (see Engine Oil Flow Chart
in the Engine Lubrication System chapter).
The connecting rod big end is bolted using the "plastic
region fastening method".
This method precisely achieves the needed clamping
force without exceeding it unnecessarily, allowing the
use of thinner, lighter bolts further decreasing connecting
There are two types of the plastic region fastening. One is
a bolt length measurement method and other is a rotation
angle method. Observe one of the following two, but the
bolt length measurement method is preferable because
this is a more reliable way to tighten the big end nuts.
The connecting rod bolts are designed to stretch
when tightened. Never reuse the connecting rod
bolts. See the table below for correct bolt and nut
Be careful not to overtighten the nuts.
The bolts must be positioned on the seating surface
correctly to prevent the bolt heads from hitting the
(1) Bolt Length Measurement Method
Be sure to clean the bolts, nuts, and connecting rods
thoroughly with a high-flash point solvent, because the
new connecting rods, bolts, and nuts are treated with an
Clean the bolts, nuts, and connecting rods in a well
-ventilated area, and take care that there is no spark
or flame anywhere near the working area. This in-
cludes any appliance with a pilot light. Because of
the danger of highly flammable liquids, do not use
gasoline or low-flash point solvents to clean them.
Immediately dry the bolts and nuts with com-
pressed air after cleaning.
Clean and dry the bolts and nuts completely.