105
12.
Cylinder Body and Piston
Preparation documents------------12.1
Failure diagnosis--------------------12.2
Cylinder body------------------------12.3
Piston----------------------------------12.4
12.1
Preparation Documents
Function of the cylinder body:
cylinder body provides space for gas compression, combustion
and expansion.
It also transfers part of its heat energy to the cooling medium inside the cylider.
Function of piston:
1.
Piston bears pressure arising from mixture gas combustion cycle inside the cylinder and
transfers the pressure to the connecting rod to make the crankshaft rotate.
2.
It forms the combustion cylinder along with the cylinder cap.
Notes
All parts shall be cleaned and blown by high pressure air before testing.
Preparation Standard
Item
Standard value
Usage limit
Cylinder
Inside Diameter
69-69.01
69.5
Cylindricity
0.005
0.05
Circular degree
0.05
Flatness
0.02
0.05
Piston
Piston
ring
Piston
pin
Piston mark direction
“IN” against the
inlet valve
/
Measuring point of piston outer
diameter
68.96-68.97
(
at
the bottom of piston
skirt
12mm
)
68.91
Piston pin housing bore Inside
Diameter
17.002-
17.008
17.04
Outer diameter of piston pin
16.992-17
16.96
Clearance between cylinder and
piston
0.035-0.045
0.10
Clearance
between
piston
ring
and
ring
groove
first ring
0.015-0.05
0.08
second ring
0.015-0.05
0.08
Clearance of the
closed mouth of
piston ring
first ring
0.35-0.55
0.70
second ring
0.35-0.55
0.70
Oil ring
0.2-0.7
/
Clearance between piston and piston
pin
0.002-0.016
0.02
ID of wrist-pin end of connecting rod
17.010-
17.018
17.06
Clearance between connecting rod
and piston pin
unit: mm
0.010-0.026
0.06
Содержание ZAFFERAN 250
Страница 1: ...1 ZAFFERANO 250 Service Manual ...
Страница 14: ...14 Ignition spark ignition DC capacitance system Diameter of rear brake disc mm φ250mm ...
Страница 46: ...46 Ignition system 1 Battery 2 Starter Relay 3 Power lock assembly 4 Flash apparatus 5 Rectifier 6 Horn 7 ECU ...
Страница 50: ...50 B L B R BL W W G B BL W W G B ...
Страница 80: ...80 Rear Wheel Rear Suspension ...
Страница 85: ...85 Lubricating system diagram 1 camshaft 2 oil pump 3 crank 4 fuel filter ...
Страница 90: ...90 Cooling System Connects to radiator Flows back to radiator Water pump ...
Страница 93: ...93 Cylinder Head Valves ...
Страница 104: ...104 Cylinder Body and Piston cam chain sliders piston cylinder body piston pin piston ring assembly base gasket ...
Страница 112: ...112 Driving Disc Clutch Driven Wheel ...
Страница 113: ...113 V BELT CLUTCH AND SECONDARY PRIMARY SHEAVE CRANKCASE FILTER COVER AND CRANKCASE COVER LEFT ...
Страница 114: ...114 V BELT CLUTCH AND SECONDARY PRIMARY SHEAVE ...
Страница 115: ...115 SECONDARY SHEAVE ...
Страница 126: ...126 input shaft middle shaft output shaft ...
Страница 130: ...130 left crankcase crankshaft right crankcase ...
Страница 131: ...131 magneto start the main gear gasket ...
Страница 143: ...143 Inspection and Maintenance of Electronic Fuel Injection EFI System ...
Страница 165: ...165 17 2 7 2 Appearance of the oxygen sensor ...
Страница 179: ...179 Then check the corresponding fault according to the fault code list ...