Chery A series. Manual - part 136

Size of Valve Guide And Valve Guide Bore 
 

Class 

Valve guide bore   

(unit: mm) 

Diameter of cylinder head 

guide hole (unit: mm) 

Interference      

(unit: mm) 

Standard 

13.555

 

0

01

.

0

−

13.481—13.519 

Oversized 

14.305

 

0

01

.

0

−

14.231—14.269 

Oversized 

14.505

 

0

01

.

0

−

14.481—14.519 

0.026—0.07 

 
 
Size of Cylinder Bore 

 

 

480 M cylinder bore (unit: mm) 

480 E cylinder bore (unit: mm) 

1 79.94-79.95 1  79.94-79.95 

2 79.95-79.96 2  79.95-79.96 

3 79.96-79.97 3  79.96-79.97 

Ex-factory 

grouping 

4 79.97-79.98 4  79.97-79.98 

A 80.23-80.24 A  80.23-80.24 

B 80.24-80.25 B  80.24-80.25 

Ex-factory repair 

C 80.25-80.26 C  80.25-80.26 

Standard 79.965-77.975

Standard  79.965-77.975 

Oversized by 

0.29 

80.245-80.255

Oversized by 

0.29 

80.245-80.255 

For 

Maintenance 

Oversized by 0.5

80.466-80.475

Oversized by 0.5 

80.466-80.475 

 

 

 
 
 
 
 

TD-5

The Diameter of Piston Skirt 

 

 

Diameter of 480M piston skirt 

(unit: mm) 

Diameter of 480E 

piston skirt (unit: 

mm) 

Diameter of UMC’s 

new two-valve piston 

skirt (unit: mm) 

1 79.91-79.92 

79.915-79.925 

79.915-79.925 

2 79.92-79.93 

79.925-79.935 

79.925-79.935 

3 79.93-79.94 

79.935-79.94 

79.935-79.94 

Ex-factory 

grouping 

4 79.94-79.95 

79.945-79.955 

79.945-79.955 

A 80.20-80.21 

80.205-80.215 

80.205-80.215 

B 80.21-80.22 

80.215-80.225 

80.215-80.225 

Ex-factory 

repair 

C 80.22-80.23 

80.225-80.235 

80.225-80.235 

Standard 79.93-79.955 

79.965-79.975 

 

Oversized by 

0.29 

80.21-80.235 80.245-80.255 

 

Spare parts 

Oversized by 

0.5 

80.43-80.455 80.465-80.475  80.435-80.455 

 
 

The Diameter of Piston Pin Bore 
 

Diameter of 480M piston pin bore (unit: mm)

Diameter of 480E piston pin bore (unit: mm)

White 20.630-20.633 White 20.630-20.633 

Red 20.633-20.636 Red 20.633-20.636 

Blue 20.636-20.639 Blue 20.636-20.639 

TD-6

 
 
 

The Diameter of The Piston Pin 

 

Diameter of 480M piston pin bore (unit: mm) 

Diameter of 480E piston pin bore (unit: mm) 

White 20.622-20.625 

White 20.622-20.625 

Red 20.625-20.628 

Red 20.625-20.628 

Blue 20.628-20.631 

Blue 20.628-20.631 

 

The End Clearance of The Piston Ring 

 

First compression ring: 0.30-0.50mm 
Second compression ring: 0.30-0.50mm 
Oil ring: 0.40-1.40mm 

 
 

 

The Axial Clearance of Piston Ring In The Piston Groove 

 

 

Height of the piston 

ring (unit: mm) 

Size of piston ring 
groove (unit: mm) 

Fit clearance 

(unit: mm) 

First compression ring 

1.60 1.6 

0.050-0.082 

Second compression ring 

2.0 2.0 

0.050-0.082 

0.61±0.025 

Sealing strip of oil ring 

Spring of oil ring 

2.68±0.05 

 

4.0 

0.01-0.23 

Cast iron oil ring 

4.0 4.0 

0.025-0.055 

0 
-0.012

+0.06
+0.04

0 
-0.012

+0.06
+0.04

+0.03
+0.01

-0.015 
-0.025

+0.03
+0.01

 

 
480 UAES’s New Two-Valve   

 

 

Height of the piston ring (unit: 

mm) 

Size of piston ring groove 

(unit: mm) 

First compression ring 

1.2（-0.03～-0.01） 1.2（0.03～0.05） 

Second compression ring 

1.5（-0.03～-0.01） 1.5（0.02～0.04） 

0.46±0.02 

Sealing strip of oil ring 

Spring of oil ring 

2.75±0.05 

2.0±0.02 

 

3（0.01～0.03） 

 

TD-7

 
Size of Piston Ring 

 

 
 

 
Size of Connecting Rod Journal And Connecting-rod Bearing Shell   

 

 

 

 

 

 

Class 

Diameter of connecting   

rod journal (unit: mm)

Thickness of connecting-rod bearing   

shell (unit: mm)

Standard 47.89~47.91 

1.480~1.487 

Downsized by 0.025 

47.89~47.91 

1.492~1.499 

Downsized by 0.25 

47.64~47.66 

1.605~1.612 

Downsized by 0.5 

47.39~47.41 

1.730~1.737 

Downsized by 0.75 

47.14~47.16 

1.855~1.862 

Downsized by1.0 

47.89~46.91 

1.980~1.987 

 
 
 
 
 
 
 
 
 

480# piston ring 

Paint mark (type) 

Size of gauge 

No paint (Standard) 

79.94 

Purple paint (oversized by 0.29) 

80.23 

Blue paint (oversized by 0.5) 

80.44 

TD-8