wsm STW37 Workshop Manual page 87

STW34, STW37, STW40, WSM
Crankpin to Crankpin Bearing
• Crankpin
• Crankpin Bearing
Crankshaft
Cylinder Bore (Standard)
Cylinder Bore (Oversize)
LUBRICATING SYSTEM
Engine Oil Pressure
Engine Oil Pressure Switch
Inner Rotor to Outer Rotor
Outer Rotor to Pump Body
Inner Rotor to Cover
Item
Oil Clearance
O.D.
I.D.
Side Clearance
I.D.
I.D.
Item
At Idle Speed
At Rated Speed
Working Pressure
Clearance
Clearance
Clearance
1-S8
Factory Specification
0.025 to 0.087 mm
0.00099 to 0.0034 in.
46.959 to 46.975 mm
1.8488 to 1.8494 in.
47.000 to 47.046 mm
1.8504 to 1.8522 in.
0.15 to 0.31 mm
0.0059 to 0.012 in.
87.000 to 87.022 mm
3.4252 to 3.4260 in.
87.250 to 87.272 mm
3.4351 to 3.4359 in.
Factory Specification
More than
98 kPa
2
1.0 kgf/cm
14 psi
300 to 440 kPa
2
3.0 to 4.5 kgf/cm
43 to 64 psi
50 kPa
2
0.5 kgf/cm
7 psi
0.030 to 0.14 mm
0.0012 to 0.0055 in.
0.11 to 0.19 mm
0.0044 to 0.0074 in.
0.105 to 0.150 mm
0.00414 to 0.00590 in.
ENGINE
Allowable Limit
0.20 mm
0.0079 in.
–
–
0.5 mm
0.02 in.
87.150 mm
3.4311 in.
87.400 mm
3.4409 in.
Allowable Limit
50 kPa
2
0.5 kgf/cm
7 psi
250 kPa
2
2.5 kgf/cm
36 psi
–
0.2 mm
0.008 in.
0.25 mm
0.0098 in.
0.20 mm
0.0079 in.
KiSC issued 11, 2014 A