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