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CRANKSHAFT/TRANSMISSION 9-23
Crankshaft and Connecting Rods
Connecting Rod Big End Inside Diameter Marks
None 37.500 ∼ 37.508 mm (1.4764 ∼ 1.4766 in.)
○
37.509 ∼ 37.516 mm (1.4767 ∼ 1.4770 in.)
BigEndCap[A]
Connecting Rod [B]
Weight Mark, Alphabet [C]
Diameter Mark (Around Weight Mark) [D]: “
○
”orno
mark
•
Select the proper bearing insert [A] in accordance with the
combination of the connecting rod and crankshaft coding.
Size Color [B]
Bearing Insert
Con-rod Big
End Inside
Diameter
Marking
Crankpin
Diameter
Marking
Size Color Part Number
None
○
Brown 92139-0028
None None
○ ○
Black 92139-0027
○
None Blue 92139-0026
•
Install the new inserts in the connecting rod and check
insert/crankpin clearance with the plastigage.
Crankshaft Side Clearance
•
Insert a thickness gauge [A] between the crankcase main
bearing and the crank web at the No.2 journal [B] to de-
termine clearance.
If the clearance exceeds the service limit, replace the
crankcase halves as a set.
NOTE
○
The upper and lower crankcase halves are machined
at the factory in the assembled state, so the crankcase
halves must be replaced as a set.
Crankshaft Side Clearance
Standard: 0.05 ∼ 0.20 mm (0.0020 ∼ 0.0079 in.)
Service Limit: 0.40 mm (0.0157 in.)
Crankshaft Runout
•
Measure the crankshaft runout.
If the measurement exceeds the service limit, replace the
crankshaft.
Crankshaft Runout
Standard: TIR 0.02 mm (0.0008 in.) or less
Service Limit: TIR 0.05 mm (0.0020 in.)
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