Chery SQR372 Service Manual
Chery SQR372 Service Manual

Chery SQR372 Service Manual

372 engine mechanical system
Hide thumbs Also See for SQR372:

Advertisement

SQR7080 Service Manual
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
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
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
3、Special tools for maintenance:
Outer appearance
PDF 文件使用 "pdfFactory Pro" 试用版本创建
SQR372 Engine
Service Manual
Chery Automobile Co., Ltd.
"Chery
QQ Technical Service Manual—372 Engine Mechanics Division" is
Chery
QQ 372 engines. This Manual is published by
Code and Name
Auxiliary devices for engine
Dismounting and checks
Engine dismounting and check stand
Clockwise belt wheel wrench
Chery Automobile Co., Ltd
www.fineprint.com.cn
372 Engine Mechanical System
Chery Automobile Co. Ltd
1
Chery
Editors
March of 2004
Purpose
Mounting onto engine
dismounting and check
stand
Dismounting and
installing engine
Camshaft clockwise
belt wheel dismounting

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the SQR372 and is the answer not in the manual?

Questions and answers

Summary of Contents for Chery SQR372

  • Page 1 SQR7080 Service Manual 372 Engine Mechanical System 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 “Chery...
  • Page 2 Oil seal stand screw driver Outer appearance Code and Name Purpose Remove and install Crankshaft belt wheel fixture crankshaft belt wheel Remove and install Wrench camshaft slave gear wheel Replace valve spacing adjust washer Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn...
  • Page 3 1 Water pump pulley 2 Timing belt cover 3 Timing belt 4 Torsion shock absorber 5 Timing pulley damper 6 Tensioner 7 Crankshaft timing pulley ※ :Non-reusable part Unit:N·m(kg·cm) Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 4 Remove it with screwdriver and wrench according to the illustration. Remove torsional vibration damper (1) Fix the flywheel and prevent the gear ring from rotating. (2) Remove bolt of torsional vibration damper. Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 5 (3) Make sure that the crankshaft timing pulley wheel mark is aligned with the mark of the oil pump. Timing mark (4) Remove the tensioner bolt, and take off the tensioner Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn...
  • Page 6 - Service life of belt is short, don’t pollute the belt with grease and water. You have no choice but rotate the engine clockwise after installing the belt. 2.7 Remove the crankshaft timing gear Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn...
  • Page 7 3.3Tears and wears of fabric lining layer, missing rear teeth, broken teeth, etc. Chap Tears wears Chap Abnormal tears and wears on belt sides Drop-off Abnormal of belt core wears tears and Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 8 Diameter of crankshaft timing +0.7 φ54.65 -0.13 gear (mm) Baffle of crankshaft timing gear Check to see if there is any deformation Standard size of crankshaft timing gear: Wide 28.6mm Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn...
  • Page 9 Make sure that the punched mark on the crankshaft clockwise pulley is aligned with the mark of the oil pump. Timing mark Timing mark 4.2.3 Install timing pulley accordingly. Clockwise Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn...
  • Page 10 Tighten the S/A fixing bolt of the stretcher with the specified torque of 25 ± 3N.m 4 Install the baffle of the crankshaft timing pulley [Attention] Install the baffle towards the direction shown in the right figure. Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 11 : torque98.0±10N.m{10±1kgm} 2 ) 、When there is a flying wheel, ① Fix the flywheel to prevent the tooth ring from turning ② Then tighten bolt of torsional vibration damper. Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 12 2 Routine check of valve valve clearance standard: 0.18±0.05 Valve clearance 0.25±0.05 3 Dismount the camshaft clockwise gear Attention· You must prevent the camshaft from rotating. Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 13 Clip the camshaft tightly, and turn the gear, to keep the bite state of master and slave gear; remove the fixing bolts of slave gear. Attention Do not damage the surface of the camshaft. Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn...
  • Page 14 0.1~0.170mm。 The air exhaust camshaft axial spacing is 0.1 ~ 0.173mm。 Limits for operation:0.18mm 3-4 Cleaning 1、Clear off the spark plug carbon accumulation with a metal brush. Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn...
  • Page 15 3 Tighten the camshaft bearing cap shown as right figure. 4 Remove the bolt for fixing the slave gear of the camshaft assembly. Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 16 8 Installation of the timing gear of camshaft After smearing the fluid sealant, use SST to prevent rotating, tighten the timing gear bolt of camshaft according to regulated torque of 100±5N.m. Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 17 2.34 2.56 2.78 thickness + (measured throttle spacing – 2.32 2.54 2.76 0.25mm) 2.38 2.60 [Reference] there are 32 kinds of shim is thickness , shown as the illustration Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn...
  • Page 18 Valve lifter (7) Keeper (8) Valve spring seat (9) Valve spring (10) Intake valve (11) Exhaust valve (12) Valve oil seal ※:Non-reusable part (13) Valve seat Unit:N·m(kg·cm) (14) Valve guide Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 19 Attention Do not damage the cylinder cover surface by scraping during the process of clearing. Do not drop filth into the air inlet and the water channel. Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 20 1. Check to see if there are some deformations, obvious tears and wears Routine check list on valve Unit: mm Item Standard Limit 0.85~1.41 Measure outside Wide 1.07~1.36 diameter 1.0±0.2 0.75 Width of valve top 1.0±0.2 0.75 Width Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 21 No excessive driving should be exerted. Pay attention to the specifications in the operation. Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 22 If not, proper corrections have to be made. 3、Make conic cutting at the center of the mating position with 70 degrees toward inwards and 30 degrees outwards. Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn...
  • Page 23 It is for you to distinguish the different suppliers by means of paintings on the valve spring, valve spring of same engine should have the same identification paint marking. Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 24 . ①Installation of the spark plug [Torque] 20±1Nm Attention: The tools should be placed vertically, so as not to make the spark plug insulator become deformed, otherwise it is easy to leak oil. Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 25 5-5 Installation 1 Install the dustproof sealing stripes 2 Install the water pump principal body Tighten with a torque of 25±1.5N.m 2 Install the new O-rings Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 26 ④ Oil pump ⑤ Oil pump gasket ⑥ Rear oil seal bracket Non-reusable part 6-2 Dismounting 1 The engine being turned upside down on the dismounting frame, take off the bolts. Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 27 Remove the oil collecting filter and its flange Attention The filter flange is not reusable. Dismount the oil pump assembly and oil pump cushion Dismounting of oil seal stand Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 28 4 Drive rotor 5 Split pin 6 Relief valve spring seat 7 Relief valve spring 8 Relief valve ※:Non-reusable part 9 Crankshaft front oil sealing 10 Oil pump body Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 29 Spring seat 弹簧座 valve 卸压阀弹簧 slider 滑块 6. Removal of the front oil seal of the crankshaft Attention The removed oil seals are not reusable. Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 30 ·The exposed part of the outer edge of the oil seal after Inside direction being pressed in should be less than 0.5mm. Oil sealing 油封露出 out 5mm 5mm 以下 Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 31 4 The new weather seal should be put inside the oil pump cover groove. 6-5 Disintegratin and assembling of oil seal 6-5-1 Configuration diagram Non-reusable part Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 32 Attention The liquid sealing silica is to be smeared to the mating section of the oil seal stands and cylinder body surface, with a width of 3—4mm. [Torque] 25±1.5N.m Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 33 (3). Tighten in the sequence shown in the right figure with the torque of 6±1N.m from the centre to the two sides front front rear Rear Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 34 (6) Crankshaft bush (7) Thrust washer (8) Cylinder block (9) No.1 compression ring Non-reusable part (10) No.2 compression ring (11) Oil ring (12) Piston (13) Connecting rod (14) Piston pin Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 35 (5) Tighten bush cover according to regulated torque torque: 40±2N.m Attention Do not turn the crankshaft (6) Remove the bush cover, measure the maximum width of the spacing ruler [Benchmark]: 0.020-0.044 mm [Limit]: 0.07 mm Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn...
  • Page 36 If the axial clearance is above the limits, it is needed to replace the axial thrust washer or the crankshaft. [Benchmark]:0.089-0.211mm [Limit]:0.30mm Benchmark Item value Thickness of thrust +0.11 -0.03 face Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 37 Attention Tighten the bolts of the crankshaft bearing cover in three times to the regulated value, in the sequence as shown in the right figure. Attention: Don’t turn crankshaft after tightening ,because of the clearance gauge. Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn...
  • Page 38 1. Use the old ring to clean the accumulated carbon in the ring groove. 2. Clean the accumulated carbon at various parts with detergents. Attention Do not use metal brush or some other hard substance to do the cleaning. Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 39 (2) Use the inner diameter centimeter to measure the positions of the piston hole diameter shown as the following figure, take the minimum value as the size of the pinhole diameter. Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 40 Benchmark Limit (mm) (mm) Primary ring 0.25-0.40 0.65 Secondary 0.35~0.50 0.65 ring Oil ring 0.20~0.70 1.00 Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn...
  • Page 41 [Limit] 0.005mm (2)Use a caliper to measure the connecting rod diameter ,and work out the circularity and cylindricity. [Limit] 0.004mm the measuring position is shown as the figure, Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn...
  • Page 42 No.1 ring Open degree of every ring is shown as the illustration: No.2 ring Oil ring Ring open angle: Down scraping 下刮片 No.1 ring No.2 ring Gasket scraping Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿ www.fineprint.com.cn...
  • Page 43 1Nm Attention:· The torque of crankshaft rotating should be less than 1Nm;(The torque is for installing the crankshaft only, not for installing the piston connecting rod) Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn...
  • Page 44 ② Tighten the left and right screw nuts alternately for a couple of times with the specified torque. [Torque]: 40±2N.m Attention The connecting rod and the rod bush should be bought from the same supplier. Chery Automobile Co., Ltd PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn...

Table of Contents

Save PDF