Chery QQ Service Manual

Service Manual for Chery QQ6 (SQR473F Engine-Mechanical) After Sales Service Department of Chery Automobile Sales Co., Ltd

guide Fit clearance between exhaust valve stem and valve guide 0.032～0.063mm Fit clearance between hydraulic jib and cylinder head hole 0.006～0.035mm

Multiple steps tightening (torque + angle) No. Connection part Part name Bolt (thread specification) Number of bolts/ gaskets (piece) Tightening to

Multiple steps tightening (torque + angle) No. Connection part Part name Bolt (thread specification) Number of bolts/ gaskets (piece) Tightening to

Multiple steps tightening (torque + angle) No. Connection part Part name Bolt (thread specification) Number of bolts/ gaskets (piece) Tightening to

3 Connecting rod bearing shell and connecting rod journal SJ10W-40 4 Cylinder sleeve hole SJ10W-40 5 Main bearing lining and crankshaft main journal

VI. The Parts where Rubber Coating are Required during Assembly of Engine No. Parts where rubber coating are required Type of sealant 1 Cylinder bl

Chapter Three Special Tools I. Connotation of Special Tool Number In order to know or find the tool clearly according to parts number and improve ma

production of this tool to other manufacturer. This tool is of the first modification. HAZET-6290-1CT means it is a standard tool produced by HAZET c

CH-20008 Installation sleeve for crankshaft front oil seal Same as A5 CH-20009 Locating tool for flywheel: used to locate flywheel. Same as A5 CH-2

CH-20017 Installation tool for valve keeper: used to install valve keeper. Same as A5 CH-20018-A Valve spring remover: used to remove valve spring.

CONTENTS Chapter One Introduction of Characteristics...4 I. Overview...

Pressure gauge for cylinder: used to measure cylinder pressure. When measuring, remove spark plug first, screw instrument pipe orifice into the posit

1.3 Screw the cylinder pressure gauge joint slowly and vertically into the spark plug hole. Do not screw too tightly for fear that it may be difficult

Chapter Five Disassembly of Power-assisted Steering System I. Disassembly Procedure 1. Use a snap ring pliers to loosen the clamp on connecting hose

5. Use a 10# open end wrench to loosen the adjusting bolt of steering pump bracket, and then pull the steering pump upwards to loosen and take off th

Chapter Six Disassembly of A/C Compressor I. Disassembly Procedure Before disassembling the compressor, disassemble the steering oil pump first. 1. U

II. Overhaul of Compressor Inside of the compressor are assembled with highly machined fine parts, in case abnormal noise or internal failure is foun

3. Use a 13# sleeve to remove lower fixing bolt of the generator. Torque: 40+5Nm. 4. Use a 10# sleeve to remove the fixing bolt of generator anode h

Chapter Eight Replacement of Engine Timing Belt I. Disassembly Procedure 1. Disassembly of engine timing belt: 1.1 Follow the disassembly method

1.5 Insert the special tool CH-20003 into the timing hole and tighten, use a wrench to turn the big nut in the crankshaft pulley to make the crankshaf

1.10 Use a 10# sleeve to loosen the fixing bolt of the tension pulley to take off the timing belt. Torque: 27±3 Nm. Note: when taking off the timin

IV. Adjustment of Timing (minor overhaul)...30 Chapter Nine Disassembly of Eng

III. Adjustment of Timing (general overhaul) 1. Turn the crankshaft to make the four pistons align on a horizontal line in the cylinders, screw the s

Chapter Nine Disassembly of Engine Assembly I. Disassembly Procedure 1. Disassembly of engine wire harness 1.1 Pull out the connecting plug o

3. Use a 13# sleeve to remove the bolt of battery support fixed mount. 4. Disassembly of cooling system. 4.1 Hoist the vehicle, place away a coolant

5.3 Use a 10mm sleeve to remove the fixing bolt of discharging tube of water pump and then pull out the discharging tube. Note: in case the O-ring on

6. Inspection of thermostat: (1) Under normal temperature, inspect seating status of the valve and it should tightly seat. (2) Inspect opening tempe

9.3 Use a 13# sleeve to remove the connecting bolt of three-way catalytic converter and exhaust intermediate pipe. Torque: 60±5 Nm. 9.4 Use a 10# sl

10.2 Use pliers to remove the fixing clip of gearshift control cable outer case and then take off the gearshift control cable. 10.3 Use a 13# sleev

11.2 Use a 18# sleeve to loosen the fixing bolt for front engine mount bracket. Torque: 80±5 Nm. 11.3 Use a crane to hoist the engine until the iron

12. Separation of transmission case assembly and engine 12.1 Use a 10# sleeve to remove the gearshift control cable bracket on the transmission case.

II. Installation Procedure 1. Please follow the order adverse to that for disassembly to install, but care should be taken for the following matters

Chapter One Introduction of Characteristics I. Overview SQR473F engine is one of the ACTECO series engines that are jointly designed and developed by

3. Use a 10# sleeve to remove the fixing bolt of compressor bracket. Torque: 30±3 Nm. 4 Use a 10# sleeve to remove the fixing bolt of intake manifo

3. Use a 18# sleeve to loosen the fixing bolt of camshaft timing gear. Torque: 120±5Nm. Note: There is no difference between intake camshaft and exha

6. Use an hexagon torque wrench to loosen the fixing bolt of cylinder head and then take off the cylinder head assembly. Torque: 50±5 Nm. Note: Follo

II. Overhaul of Cylinder Head System 1. Detection of camshaft 1.1 Measurement of height of cam. Use an outside micrometer to measure wheel height of

2.2.2 Measurement of valve guide inside diameter Use an inside micrometer to measure inside diameter of the guide. Fit clearance between intake valve

2.3.4 Detection of planeness of cylinder head Follow the method as shown in the figure to measure planeness of the cylinder head with a feeler gauge;

5. Use a hammer to knock the valve oil seal installation tool, when a metal crash sound is heard, take out CH-20012. 6. The methods for installation

envelop the oil seal onto the camshaft, and then install use the special tool. 11. Remember to check elasticity of valve cover gasket for aging and

Chapter Twelve Disassembly and Installation of Oil Pump and Lubrication System I. Disassembly Procedure 1. Roll over the engine and use a 10# sleeve

5. Use an 8# sleeve to remove the four fixing bolts of oil pump. Torque: 8+3Nm 6. Take off the oil pump assembly and then the oil pump shim. Note:

The bore refers to diameter of cylinder sleeve, which is specified by a 2-3 digit integer with the decimal part rounded and millimeter as unit. Charac

II. Overhaul of Oil Pump if it is suspected that engine oil pressure may has problem, disassemble the oil pump and check elastic force of relief valv

2. Completely and softly shovel off the glue on the surface of oil pan with a flat shovel and then apply new sealant uniformly (see the table above fo

4. Use a 10# sleeve to remove the fixing bolt of crankshaft lower bearing cap and cylinder block. 5. Use a 19# sleeve to remove the fixing bolt of

1.3 Measurement of main journal clearance: place a plastic feeler gauge on the crankshaft main journal, tighten the main bearing shell cover to specif

2.3.2 Push the piston head vertically against the piston ring in the cylinder and let the piston ring be on a plane. 2.3.3 Use a feeler gauge to mea

3.2 Use a vernier caliper to measure rough diameter of the cylinder hole. 3.3 Adjust the outside micrometer to the data measured out by the vernier

III. Installation of Crank-Connecting Rod System The installation order is adverse to that for disassembly, but care should be taken for the followin

4. When installing cylinder cushion, install it with the side with word up. Note: The cylinder cushion has been applied with sealant, so, providing t

10. Method for shell matching. The tightening torque for installing the fixing bolt of connecting rod bearing is 25±3Nm (then turn 90±5° clockwise). N

Chapter Two Specification I. Engine Type and Major Parameters Basic Parameters Item SQR473 SQR473H SQR473F No. Type Vertical type, 4 cylinder, water

Crank Angle with Intake Valve Opening as 1mm (°) 400 369 Crank Angle at 1mm before Intake Valve Closing (°) 610 569 Crank Angle with Exhaust Valve O

No. Name Dimension and tolerance Fit clearance Thickness of connecting rod big end 220-0.1 4 Width of crankshaft connecting rod journal 22+0.30+0.

No. Name Dimension and tolerance Fit clearance Diameter of cylinder head third bearing hole ()021.00724+Hφ +0.074 Diameter of camshaft fourth journ