General Information; Trouble Diagnosis - DAELIM ET-300 Service Manual

11-2 General Information

Operational precautions
This Section concerns disassembly of the crankcase for repair purpose.
Remove following components before disassembling crankcase.
－Engine remove
－Cylinder head
－Cylinder and piston
－Drive face and driven pulley
－AC generator/Start one way clutch
In case it requires replacing the crankshaft bearing, the driving chain of engine oil pump or the timing
chain, it is preferably to replace crankshaft as a unit.
Specification
Connecting rod side clearance of the big end
Crankshaft
Vertical clearance of the big end of the connecting rod
Run-out
Torque value
Bolts for crankcase
Engine oil drain bolt
Cylinder stud bolt
Tools
Special tools
L. crank shaft oil seal driver (27*42*7): SYM-1332100-HMA

11-3 Trouble Diagnosis

Engine noise
Loose crankshaft bearing
Loose crankshaft pin bearing
Worn out piston pin and pin hole
Section 5
Section 6
Section 7
Section 8
Section 10
Item
0.8~1.2kgf-m
3.5~4.5kgf-m
1.0~1.4kgf-m
Unit: mm
Standard Limit
0.100~0.400 0.600
0~0.008 0.050
0.030 0.100