11. CRANKCASE/CRANKSHAFT
11-2
G-DINK 300i
SERVICE INFORMATION
GENERAL INSTRUCTIONS
• This section covers crankcase separation to service the crankshaft. The engine must be removed
for this operation.
• When separating the crankcase, never use a driver to pry the crankcase mating surfaces apart
forcedly to prevent damaging the mating surfaces.
• When installing the crankcase, do not use an iron hammer to tap it.
• The following parts must be removed before separating the crankcase.
Cylinder head
Cylinder/piston
Right crankcase cover/drive and driven pulley
A.C. generator/starter clutch
Rear wheel/rear shock absorber
Starter motor
Oil pump
SPECIFICATIONS
Ite
Standard (mm) Service Limit (mm)
Connecting rod big end side clearance
0.15~0.35 0.6
Crankshaft Connecting rod big end radial clearance
0.~0.008 0.05
Runout
⎯ 0.10
TORQUE VALUES
Crankcase bolt 7.8~10.8N-m
Cam chain tensioner slipper bolt 7.8~11.8N-m
SPECIAL TOOL
Gear remover
TROUBLESHOOTING
Excessive engine noise
• Excessive bearing play
• Excessive crankpin bearing play
• Worn piston pin and piston pin hole