Chery QQ Manuel de service télécharger pdf (Page 9)

No. Name Dimension and tolerance Fit clearance

Diameter of cylinder head third bearing hole

(

)

021.0

724

Hφ

+0.074

Diameter of camshaft fourth journal

(

)

040.0

053.0

624

−

eφ

Diameter of cylinder head fourth bearing hole

(

)

021.0

724

Hφ

+0.040～

+0.074

Diameter of camshaft fifth journal

(

)

040.0

053.0

624

−

eφ

Diameter of cylinder head fifth bearing hole

(

)

021.0

724

Hφ

+0.040～

+0.074

20 Camshaft thrust groove width

(

)

025.0

765.30

+0.15～+0.20

Outside diameter of camshaft oil seal

4.0

2.0

Diameter of cylinder head oil seal hole

(

)

025.0

750

Hφ

-0.005～

-0.40

Diameter of cylinder head jib hole

(

)

024.0

006.0

712

Gφ

Outside diameter of hydraulic jib φ12-0.011

+0.006～

+0.035

Diameter of crankshaft timing gear segment Φ28f7

Bore diameter of crankshaft timing gear φ28＋0.030

Key groove dimension of crankshaft timing gear 5

＋

0.030

Key groove width of crankshaft gear 5

＋

0.030

Semicircular key width 5

-0.030

0~0.06

25 Bore diameter of crankshaft pulley φ74

+0.046

26 Outside diameter of timing gear φ74

-0.05

-0.08

0.096~0.126

III. Primary Fit Clearance

Name Fit Clearance

Axial clearance of crankshaft 0.07～0.265mm

Axial Clearance of Camshaft 0.15～0.20mm

Axial clearance of connecting rod 0.15～0.4mm

Fit clearance of connecting rod bearing 0.023～0.058mm

Fit clearance of main bearing 0.035～0.075mm

Fit clearance between intake valve stem and valve 0.012～0.043mm

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 57 58

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Chery QQ Manuel de service Page 9

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