Sym SYM series, Manual, Page: 109 / 178

3. LUBRICATION SYSTEM SYM
3-2
OPERATIONAL PRECAUTIONS
General Information
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This chapter contains maintenance operations for the engine oil pump, engine oil and
gear oil.
Specifications
Engine oil quantity Disassembly 950 c.c.
Replacement 700 c.c.
Oil viscosity SAE 10W-30 or equivalent
Gear Oil Capacity Disassembly 180 c.c.
Replacement 170 c.c.
Oil viscosity of gear oil SAE 85W-140
unit : mm
Items Standard Limit
Inner rotor clearance
- 0.12
Clearance between outer
rotor and body
- 0.12
Oil pump
Clearance between rotor
side and body
0.05~0.10 0.20
Torque value
Engine oil drain plug 3.5~4.5kgf-m
Engine oil screen cover 1.0~2.0kgf-m
Gear oil drain bolt 1.0~1.5kgf-m
Gear oil filling bolt 1.0~1.5kgf-m
Oil pump drive sprocket nut 0.8~1.2kgf-m
TROUBLE DIAGNOSIS
Low engine oil level
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Oil leaking
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Valve guide or seat worn out
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Piston ring worn out
Low Oil Pressure
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Low engine oil level
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Clogged in oil strainer, circuits or pipes
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Oil pump damage
Dirty oil
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No oil change in periodical
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Cylinder head gasket damage
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Piston ring worn out
Oil viscosity