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Chery SQR372 Service Manual

Chery SQR372
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SQR7080 Service Manual 372 Engine Mechanical System
Chery Automobile Co., Ltd
1
SQR372 Engine
Service Manual
Chery Automobile Co., Ltd.
Forewords
In order to help the technical servicing personnel to have correct understanding and good command of the
cute Chery Model SQR7080 vehicle, and to master the skills for fast repairs and rational maintenance, a
special edition of the Chery QQ Technical Service Manual372 Engine Mechanics Division is
compiled and published.
This Manual gives a detailed description on the dismounting, installation, checks and tests, adjustments
and diagnoses, technical standards and specifications for adjustments and diagnoses of various parts and
components as well as subsystems of Chery QQ 372 engines. This Manual is published by Chery
Automobile Co., Ltd.
Any parts or sections of this Manual shall not be copied or duplicated in whatever form or by whatever
approach without the written authorization of the publisher.
The right of interpreting the Manual belongs to the Service Department of Chery Automobile Co. Ltd
Editors
March of 2004
3Special tools for maintenance:
Outer appearance Code and Name Purpose
Auxiliary devices for engine
dismounting and checks
Mounting onto engine
dismounting and check
stand
Engine dismounting and check stand
Dismounting and
installing engine
Clockwise belt wheel wrench
Camshaft clockwise
belt wheel dismounting
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Chery SQR372 Specifications

General IconGeneral
Engine CodeSQR372
Displacement812 cc
Fuel SystemMulti-point fuel injection
Fuel TypeGasoline
Number of cylinders3
ValvetrainDOHC
Compression Ratio9.5:1
Torque70 Nm at 3500-4000 rpm
Engine TypeInline-3

Summary

Chapter 2 Timing Belt Service

1. Configuration diagram

Diagram showing the configuration of timing belt components and their numbering for identification.

Chapter 3 Camshaft Service

3-1. Diagram (Removal and installation order for timing belt)

Illustrates the removal and installation order for the timing belt components of the camshaft.

3-2 Removal

Procedures for the removal of camshaft components, including cylinder head assembly and valve checks.

3-3 Camshaft

Details specifications for camshaft measurements and checks, including axial clearance.

3-4 Cleaning

Procedures for cleaning camshaft components, focusing on removing deposits and preparing for inspection.

3-5 Installation

Step-by-step guide for installing camshaft components, ensuring proper alignment and lubrication.

4. Cylinder head

4-1 Configuration diagram

Diagram illustrating cylinder head components and their identification numbers for removal and installation procedures.

4-2 Dismounting

Instructions for dismounting the cylinder head, including spark plug removal and cylinder cover base removal.

4-3 Clearing

Procedures for cleaning the cylinder head components, focusing on removing carbon residue and ensuring cleanliness.

4-4 Routine checks

Procedures for routine checks on the cylinder cover, valve springs, and throttle components, including measurements and wear checks.

4-5 Assembly of cylinder head

Step-by-step instructions for assembling the cylinder head components, ensuring proper seating and sealing.

5. Water pump

5-1 Configuration diagram

Diagram illustrating water pump components and their identification numbers for service procedures.

5-2 Dismounting

Procedures for dismounting the water pump and related components, emphasizing the non-reusability of O-rings.

5-3 Clearing

Steps for clearing the mating surface of the water pump to ensure proper seal during reassembly.

5-4 Routine checks

Checks to perform on the water pump for any deformation or damage and to ensure smooth lubrication.

5-5 Installation

Instructions for installing the water pump, including dustproof sealing stripes, principal body, and new O-rings.

6. Oil pump

6-1 Configuration diagram

Illustrates the components of the oil pump system and their identification numbers for service procedures.

6-2 Dismounting

Procedures for dismounting the oil pump and related components, including the oil pan and oil collecting filter.

6-3 Clearing

Steps for clearing mating surfaces of the oil pump system components to ensure proper assembly and sealing.

6-4 Disintegration and assembling of oil pump

Detailed steps for disassembling and reassembling the oil pump, including routine checks and component replacement.

6-5 Oil seal service

Procedures for the disintegration, checks, and assembly of the oil seal.

6-6 Assembling of oil sealing stands

Procedure for assembling oil sealing stands with sealant and torque specification.

7. Crankshaft connecting rod mechanism

7-1 Configuration diagram

Diagram detailing the components of the crankshaft connecting rod mechanism for service operations.

7-2 Disintegration of crankshaft connecting rod mechanism

Procedures for disassembling the crankshaft connecting rod mechanism, including clearance checks and component removal.

7-3 Clearing

Steps for clearing cylinder body and piston components to prepare for assembly or inspection.

7-4 Routine checks

Comprehensive routine checks for cylinder block, piston, and crankshaft, including measurements for wear and clearances.

7-4-5 Assembling of the crankshaft connecting rod mechanism

Detailed instructions for assembling the crankshaft connecting rod mechanism, ensuring correct alignment and lubrication.

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