Zenoah AIR G26, Instruction Manual

Page: 10 / 24

10
Items
Bore (mm)
Diameter (mm)
Piston Ring
Groove Width (mm)
Piston Ring Hole (mm)
Clearance between Piston
and Cylinder (mm)
Clearance between Groove
and Piston Ring (mm)
End Gap (mm)
Width (mm)
Eccentricity (mm)
Axial Play (mm)
Main Bearing
Measuring Device
Eye Checking
Micro Meter
Thickness Gauge
Cylinder Gauge
Micro Meter
Cylinder Gauge
Thickness Gauge
Thickness Gauge
Micro Meter
Micro Meter
Cylinder Gauge
Micro Meter
Dial Gauge
Thickness Gauge
––
Remarks
At the skirt end and
the right angle to the
piston pin
When inserted in a
new cylinder
Standard
ø34
ø33.97
1.01
ø8.01
0.03–0.05
0.02–0.04
0.05–0.25
0.98
ø8
ø11
ø12
––
––
––
Standard
ø32
ø31.97
1.01
ø8.01
0.03–0.05
0.02–0.04
0.05–0.25
0.98
ø8
ø11
ø12
––
––
––
Limit
Plating damaged
ø33.87
1.11
ø8.05
0.15
0.1
0.5
0.93
ø7.98
ø11.05
ø11.98
0.07
0.5
Gritty or
Has Flat Spot
Limit
Plating damaged
ø31.87
1.11
ø8.05
0.15
0.1
0.5
0.93
ø7.98
ø11.05
ø11.98
0.07
0.5
Gritty or
Has Flat Spot
Maintenance Specifications
Cylinder
Piston
Piston
Ring
Piston Pin Diameter (mm)
Connecting Rod small end (mm)
Crankshaft Dia. at Main Bearing (mm)
Engine Care and Maintenance
(continued)