Connecting Rod Big End Bearing Insert Selection

Connecting Rod Big End Bore Diameter Marks

NOTE

○The mark already on the big end should almost coincide with the measurement.

None: 41.000 ∼ 41.008 mm (1.6142 ∼ 1.6145 in.)

○: 41.009 ∼ 41.016 mm (1.6145 ∼ 1.6148 in.)

Big End Cap

Connecting Rod

Weight Mark, Alphabet

Diameter Mark (around Weight Mark): “○” or no mark

• Select the proper bearing insert in accordance with the combination of the connecting rod and crankshaft coding.

• Install the new insert in the connecting rod and check in­sert/journal clearance with a plastigage.

Con-rod Bore Diameter Mark	Crankpin Diameter Mark	Bearing Insert
Size Color	Part Number
о	о	Black	92028-1349
None	None
о	None	Blue	92028-1348
None	о	Brown	92028-1350

Crankshaft Runout

• Measure the crankshaft runout.

OSet the crankshaft in a flywheel alignment jig or on V blocks.

OSet a dial gauge against the points indicated.

OTurn the crankshaft slowly to measure the runout. The dif­ference between the highest and lowest dial gauge read­ings (TIR) is the amount of runout.

• If the measurement exceeds the service limit, replace the
crankshaft.

Crankshaft Runout Service Limit: 0.05 mm (0.0020 in.) TIR

Crankshaft Main Bearing Insert/Journal Clearance

• Measure the bearing insert/journal clearance using a
plastigage.

OSplit the crankcase and wipe each bearing insert and jour­nal surface clean of oil.

OCut strips of plastigage to bearing insert width, and place a strip on each journal parallel to the crankshaft so that the plastigage will be compressed between the journal and the bearing insert.

CRANKSHAFT/TRANSMISSION 9-21

Crankshaft/Connecting Rods

OInstall the lower crankcase half, and tighten the case bolts to the specified torque.

Torque - Crankcase 8 mm Bolts: 27 N·m (2.8 kgf·m, 20 ft·lb) Crankcase 6 mm Bolts: 12 N·m (1.2 kgf·m, 104 in·lb)

Дата добавления: 2014-12-23