Chery B11. Manual - part 47

   

Maintenance Manual for Chery·Oriental Son   

Engine Section

 

 

 

 

9.Automatic Tensioner 

 

 

 

作 用 力

98N-196N Operating force 

98N-196N 

在 98N-196N 作用下其柱塞压缩量 1mm 

The trunk piston compression 1mm under 

the operating force of 98N-196N 

12mm 自由伸出量  12mm free overhang 

储液腔 liquid store chamber 

油封 Oil seal 

限位环 Spacing ring 

                柱塞 Trunk piston 

                单向阀 Check valve 

伸张弹簧 Expanding spring 

工作腔 Working chamber 

 

10. Air Distribution 

Mechanism 

 

排 气 摇 臂 Exhaust valve, 

rocker arm 

排气摇臂轴 Exhaust valve, 

rocker arm 

进 气 摇 臂 轴 Intake valve, 

rocker arm 

                卡簧 Circlip 

                进 气 摇 臂

Intake  valve,        

rocker arm 

 

 

 

 

 

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Maintenance Manual for Chery·Oriental Son   

Engine Section

 

 

 

Automatic tensioner is to make timing belt 

tensioned. In an operation cycle, the belt 

tension is not constant and changing 

periodically. With usage time increasing 

and belt aging, tensioner may be tensioned 

automatically to prevent belt sliding and 

affect engine air distribution phase. 

 

 

 

 

 

 

 

 

The two hollow rocker of oil hole can 

neither be exchanged nor be reversely 

installed. 

Eight intake valve, rocker arms are divided 

into group A and B without exchange. Four 

exhaust valve, rocker arms are 

exchangeable. The intake/exhaust valve, 

rocker arms are made of aluminum metal, 

which may decrease weight, reduce 

crankshaft cam load, extend its life time and 

improve engine performance and fuel 

economics. There are oil pipe and oil 

injection hole, which are supported by 

hydraulic pole in intake/exhaust valve, 

rocker arms. The latter will 

inject incoming oil from 

rocker to lubricate air 

distribution mechanism. 

 

 

Intake valve, rocker arm 

Idler wheel

进 气 摇 臂 Intake valve, 

rocker arm 

滚轮 Idler wheel 

 

支承轴颈 Bearing journal

 

Bearing journal 

 

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Maintenance Manual for Chery·Oriental Son   

Engine Section

 

 

 

 

弹簧上座 Upper site of springs 

识别颜色 Color identification   

气门弹簧 Valve spring 

气门导管 Valve guide 

气门油封 Valve oil seal 

弹簧下座 Lower site of springs 

 

螺旋内侧 Spiral inner side 

螺旋外侧 Spiral outer side 

 

 

 

Idler wheel rocker arm is adopted in 

the rocker arm so as to reduce the 

abrasion between camshaft cam and 

rocker arm 

 

 

 

 

Camshaft is made of 

spheroidal graphite iron, of 

5-point bearing and no 

special bearing. 

 

 

 

The valve spring is 

non-isometry structure, 

which may prevent 

sympathetic vibration and 

rupture. Please notice that 

the color-marked should be 

upwards and the 

larger-distant is upwards. 

 

Spring section is elliptoid, 

which surface is shot 

blasting processed to 

improve fatigue resistance. 

 

 

 

 

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Maintenance Manual for Chery·Oriental Son   

Engine Section

 

 

 

 

 

气门 Valve 

进气门为 1.0mm/极限为 0.5mm 

Inlet valve is 1.00/limit is 0.5mm 

 

排气门为 1.2mm/极限为 0.7mm 

Exhaust valve is 1.2mm/limit is 0.7mm 

 

 

 

气门座 Valve seat 

工作面宽 0.9-1.3mm 

Working surface width 

0.9-1.3mm 

 

 

 

The valve is of umbrella 

structure. The intake valve is 

similar to the exhaust valve, 

but the size of the former is a 

little bigger than the later. 

Each cylinder is of 

four-valve structure, which 

may improve emission 

efficiency, decrease weight 

and inertia resistance and 

extend the life time of valve 

and valve seat. Besides it, it 

is of benefit for spark plug 

allocation, which improve 

burning efficiency and 

reduce injurant emission and 

fuel consumption. 

Valve oil seal is of steel-shelf 

and rubber-ring-spring 

tension structure. The duct is 

made of 

high-temperature-pressure-pr

ocessing powder metallurgy. 

 

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