Chery S11 / Chery QQ. Manual — part 117

Chery QQ Service Manual

Mechanical Part of SQR 472Engine

37

5.2 Disassembly

5.2.1 Remove the rear crankshaft oil seal with a

screwdriver.

Notice: The rear oil seal of the crankshaft is nonreusable.

5.3 Inspection

Inspect the oil seal for damage and the abrasion at its lip.

5.4 Assembly of oil seal

5.4.1

Spread engine oil over the lip of the new oil seal.

5.4.2

Mount the oil seal with special tool as indicated

in the right figure

6. Assembly

6.1 Assembly of the oil seal seat

Spread sealant over the oil seal seat as shown in the right

figure.

Grease: Loctite 5699

Notice: Spread the liquid sealant on the position of the

oil seal base which is to contact with the cylinder body,

and make sure the width of the sealant is 3-4mm.

Torque: 25±1.5N.m

6.2 Assembly of the new engine oil pump gasket and the

engine oil pump assembly.

Torque: 20±1.5N.m

6.3 Assemble the new engine oil collector gasket and the

Special Tool

Special Tool

Glue Spread Line

Lip

Chery QQ Service Manual

Mechanical Part of SQR 472Engine

38

engine oil drainer

Torque: 6±1N.m

6.4 Assembly of the oil pan

6.4.1 Clean up the joint surface between the oil pan with

the cylinder.

6.4.2 Spread sealant, then assemble it.

Grease: Loctite 5699

Notice: ·The sealing line should be unbroken with its

diameter being ф3-4mm

·Assembly should take place fifteen minutes

after glue-spreading.

6.4.3 Tighten the bolts in the middle first up to the

specified torque, then the bolts beside them as shown in

the right figure.

Torque: 6±1N.m

Front

Rear

Chery QQ Service Manual

Mechanical Part of SQR 472Engine

39

6) Crank Connecting Rod Mechanism

1 Structure Diagram

① Connecting rod cover
② Connecting rod bushing
③ Piston connecting rod assembly
④ Main bearing cap
⑤ Crankshaft
⑥ Crankshaft bearing bushing
⑦ Thrust plate
⑧ Cylinder body
⑨ First ring
⑩ Second ring
⑾ Steel tape combined oil ring
⑿ Piston
⒀Connecting rod

⒁ Piston pin

Components which may

not be reused

Chery QQ Service Manual

Mechanical Part of SQR 472Engine

40

2 Disassemble of Crank Connecting Rod Mechanism

2.1 Inspect the axial momentum of the connecting rod

2.1.1 Measure the axial clearance with a dial gauge or

feeler gauge.

Standard value: 0.15-0.25mm

Limit: 1.2mm

2.2 Inspect the connecting rod bushing for its radial

clearance.

2.2.1 Remove the bushing cap.

Notice: The components of each cylinder shall be placed

in order.

2.2.2 Clean the bearing bushing and the axle.

2.2.3 Conduct radial adjustment for the axial diameter of

connecting rod with clearance gauge.

Tighten the bushing cap with specified torque.

Torque: 40±2N.m

Notice: The crankshaft may not rotate.

2.2.4 Remove the bushing cap, measure the maximum

thickness of the searcher.

Standard value: 0.020-0.044 mm

Limit: 0.07 mm