GD125_150 cap 11 (carter albero motore).pdf

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11
. CRANKCASE/CRANKSHAFT
GRAND DINK 125/150
11
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CRANKCASE/CRANKSHAFT
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SCHEMATIC DRAWING ---------------------------------------------- 11-1
SERVICE INFORMATION -------------------------------------------- 11-2
TROUBLESHOOTING ------------------------------------------------- 11-2
CRANKCASE SEPARATION ----------------------------------------- 11-3
CRANKSHAFT INSPECTION----------------------------------------- 11-4
CRANKCASE ASSEMBLY -------------------------------------------- 11-5
11
11-0
11
. CRANKCASE/CRANKSHAFT
SCHEMATIC DRAWING
GRAND DINK 125/150
11-1
11
. CRANKCASE/CRANKSHAFT
SERVICE INFORMATION
GRAND DINK 125/150
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 ( 6-4)
Cylinder/piston ( 7-3)
Right crankcase cover/drive and driven pulley ( 8-3)
A.C. generator/starter clutch ( 10-3)
Rear wheel/rear shock absorber ( 15-4)
Starter motor ( 19-3)
Oil pump ( 4-4)
SPECIFICATIONS
Item
Connecting rod big end side clearance
Crankshaft Connecting rod big end radial clearance
Runout
TORQUE VALUES
Crankcase bolt
Cam chain tensioner slipper bolt
SPECIAL TOOL
Gear remover
Standard (mm)
0.15_
0.35
0._
0.008
æ
Service Limit (mm)
0.6
0.05
0.10
7.8_
7.8_
10.8N-m
11.8N-m
TROUBLESHOOTING
Excessive engine noise
•
Excessive bearing play
•
Excessive crankpin bearing play
•
Worn piston pin and piston pin hole
11-2
11
. CRANKCASE/CRANKSHAFT
CRANKCASE SEPARATION
Remove the cam chain tensioner slipper bolt.
Remove the cam chain tensioner slipper and
cam chain.
Remove the two right crankcase attaching
bolts.
GRAND DINK 125/150
Cam Chain Tensioner Slipper
Bolt
Bolts
Cam Chain
Remove the five left crankcase bolts.
Left Crankcase
Place the crankcase with the left crankcase
down and remove the right crankcase from the
left crankcase.
Right Crankcase
＊
•
Never use a driver to pry the
crankcase mating surfaces apart.
Remove the gasket and dowel pins.
Left Crankcase
Remove the crankshaft from the left
crankcase.
Crankshaft
Left Crankcase
11-3
11
. CRANKCASE/CRANKSHAFT
Oil Seal
GRAND DINK 125/150
Remove the oil seal from the left crankcase.
Left Crankcase
CRANKSHAFT INSPECTION
Measure the connecting rod big end side
clearance.
Service Limit:
0.6mm replace if over
Measure the connecting rod small end I.D.
Service Limit:
15.06mm replace if over
11-4

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