Crankshaft and Connecting Rods
Crankshaft Main Bearing Insert/Journal Wear
Using a plastigage (press gauge) [A], measure the bear-
ing insert/journal [B] clearance.
Tighten the crankcase bolts to the specified torque (see
Do not turn the crankshaft during clearance measure-
Journal clearance less than 0.025 mm (0.00098 in.) can
not be measured by plastigage, however, using genuine
parts maintains the minimum standard clearance.
Crankshaft Main Bearing Insert/Journal Clearance
0.017 ∼ 0.041 mm (0.0007 ∼ 0.0016 in.)
Service Limit: 0.07 mm (0.003 in.)
If the clearance is within the standard, no bearing replace-
ment is required.
If the clearance is between 0.042 mm (0.0017 in.) and
the service limit (0.07 mm, 0.003 in.), replace the bearing
inserts [A] with inserts painted blue [B]. Check insert/jour-
nal clearance with the plastigage. The clearance may ex-
ceed the standard slightly, but it must not be less than the
minimum in order to avoid bearing seizure.
If the clearance exceeds the service limit, measure the
diameter of the crankshaft main journal.
Crankshaft Main Journal Diameter
37.984 ∼ 38.000 mm (1.4954 ∼ 1.4961 in.)
Service Limit: 37.96 mm (1.4945 in.)
If any journal has worn past the service limit, replace the
crankshaft with a new one.
If the measured journal diameters are not less than the
service limit, but do not coincide with the original diameter
markings on the crankshaft, make new marks on it.
Crankshaft Main Journal Diameter Marks
None 37.984 ∼ 37.992 mm (1.4954 ∼ 1.4957 in.)
37.993 ∼ 38.000 mm (1.4958 ∼ 1.4961 in.)
: Crankshaft Main Journal Diameter Marks, "1" or no