torque CHERY TIGGO 2009 Service User Guide

Downloaded from www.Manualslib.com manuals search engine ENGINE UNIT REPAIR
Engine Block
Specifications
Torque Specifications
DESCRIPTIONTORQUE (N·m)
Connecting Rod Cap Bolts 1st Step: Tighten the bolt to 25 N·m
2nd Step: Tighten the bolt an additional 90°
Main Bearing Cap Bolts 1st Step: Tighten the bolt to 45 N·m
2nd Step: Tighten the bolt an additional 180°
Lower Cylinder Block Bolts 23
Clearance Specifications
DESCRIPTIONSPECIFICATION (mm)
Surface Distortion Limit 0.15
Inner Diameter Standard 81
Out-Of-Round < 0.008
Taper < 0.01
Disassembly
1. Remove the oil pan and then remove oil baffle.
2. Remove the oil strainer.
3. For each connecting rod/piston assembly to be removed, rotate the crankshaft to the bottom dead center position
for each cylinder.
NOTE :
Before removing the connecting rod/piston assembly, check the connecting rod side clearance.
BESM020060
02–50Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Connecting Rods
Specifications
Torque Specifications
DESCRIPTIONTORQUE (N·m)
Connecting Rod Bolts 1st Step: Tighten bolts to 25 N·m
2nd Step: Tighten the connecting rod bolts an additional 90°
Clearance Specifications
DESCRIPTION SPECIFICATION (mm)
Connecting Rod Radial Clearance 0.016 - 0.051
Connecting Rod Axial Clearance 0.002 - 0.013
Disassembly
1. Remove the connecting rod cap bolts.
2. Remove the connecting rod bearing cap.
3. Using a hammer handle or similar tool, push the
piston and connecting rod assembly (1) out
through the cylinder head side of the engine block.
NOTE: Before removing the piston and connecting
rod assembly, check the connecting rod side
clearance.
ENGINE UNIT REPAIR
BESM020043
BESM020044
02–58Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 4. Remove the connecting rod bearings.CAUTION: When removing the connecting rod
side bearings, note the installation position.
Keep them in the correct order.
Inspection
•Check the radial clearance of connecting rod bearing.
CONNECTING ROD RADIAL CLEARANCE
Radial Clearance 0.016 - 0.051 mm
Assembly
NOTE :
The rod bolts should not be reused.
1. Before installing the NEW rod bolts, the threads and under the bolt head should be oiled with clean engine oil.
2. Install each bolt finger tight, then alternately tighten each bolt to assemble the cap properly.
3. Tighten the connecting rod bolts using the two step torque-turn method:• 1st Step: Tighten bolts to 25 N·m
• 2nd Step: Tighten the connecting rod bolts an
additional 90°
4. Using a feeler gauge check connecting rod side clearance. •Check axial clearance of connecting rod.
ENGINE UNIT REPAIR
BESM020045
LTSM020208
BESM020064
02
02–59Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Crankshaft
Specifications
Torque Specifications
DESCRIPTIONTORQUE (N·m)
Main Bearing Cap Bolts 1st Step: Tighten the bolt to 45 N·m
2nd Step: Tighten the bolt an additional 180°
Lower Cylinder Block Bolts 23
Clearance Specifications
DESCRIPTIONSPECIFICATION (mm)
Diameter of Crankshaft Main Journals 53.981 - 54
Diameter of Crankshaft Rod Journals 47.884 - 47.9
Out-of-Round Maximum of Crankshaft Main Journals 0.008
Axial Clearance of Crankshaft 0.07 - 0.265
Radial Clearance of Crankshaft 0.0035 - 0.034
Coaxality Crankshaft Main Journal 0.05
Thrust Washer Thickness 2.4 - 2.405
Disassembly
1. Remove the front crankshaft oil seal (See Front Crankshaft Oil Seal Removal & Installation in Section 02
Engine).
2. Remove the rear crankshaft oil seal (See Rear Crankshaft Oil Seal Removal & Installation in Section 02 Engine).
3. Remove the pistons with connecting rod assemblies.
4. Remove the lower cylinder block bolts in the sequence shown.
NOTE: Before loosening the lower cylinder block
bolts, measure the crankshaft side clearance.
5. Remove the lower cylinder block.
6. Remove the crankshaft.
7. Remove the main bearings and thrust bearings from the cylinder block and lower cylinder block. NOTE: If reusing the bearings, identify and number the bearings so that they are assembled in the same position
and direction.
ENGINE UNIT REPAIR
BESM020074
02–60Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Inspection
•The crankshaft main journals should be checked for
excessive wear, roundness and scoring. Limits of
roundness on any crankshaft main journals should
be held to 0.008 mm. Limits of roundness on any
crankshaft rod journals should be held to 0.005
mm. DO NOT nick crank pin or bearing fillets. Lim-
its of out of round on any crankshaft journals
should be held to 0.005 mm.
• Check the axial clearance after installation. Stan-
dard of axial clearance should be 0.07 mm. Limits
of axial clearance should be held to 0.265 mm.
• Clean the journal and bearing.
• Install the crankshaft.
• Cut the plastic-gauge to the same width as the
bearing, and then put it onto the crankshaft journal
to make it parallel with the central line of the crank-
shaft.
• Install the main bearing cap carefully, and tighten
the bolts to the specified torque.
• Remove the main bearing cap.
• Measure the oil clearance with the plastic-gauge.
Standard oil clearance of crankshaft rod and
main journals should be 0.022 mm
Limits of oil clearance of crankshaft rod and main journals should be 0.058 mm
Standard oil clearance of crankshaft main journal
should be 0.022 mm. Limits of oil clearance of crank-
shaft main journal should be 0.058 mm.
ENGINE UNIT REPAIR
BESM020075
BESM020076
BESM020077
02
02–61Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine CYLINDER HEAD UNIT REPAIR
Cylinder Head
Specifications
Torque Specifications
DESCRIPTIONTORQUE (N·m)
Cylinder Head Bolts 1st Step: Tighten the bolt to 40 ± 5 N·m
2nd Step: Tighten the bolt an additional 90 ± 5° 3rd Step: Tighten the bolt an additional 90 ± 5°
Cylinder Head Cover Bolts 11
Clearance Specifications
DESCRIPTIONSPECIFICATION (mm)
Cylinder Head Flatness 0.04
Intake Valve Deflection 0.02
Exhaust Valve Deflection 0.04
Spring Height 47.7
Disassembly
NOTE :
The following special tools are required to perform the repair procedure:
•CH-20011 - Valve Seal Installer
• CH-20012 - Valve Stem Seal Installer Guide
• CH-20013 - Valve Seal Remover
• CH-20017 - Valve Keeper Installer
• CH-20018 - Valve Spring Compressor
NOTE :
Replacement cylinder head comes complete with valves, seals, springs, retainers, keepers, tappets, and camshafts. 1. Remove camshafts.
2. Remove the hydraulic tappet assembly (1).
BESM020071
02
02–63Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine •Measure the axial clearance of camshaft.
CAMSHAFT AXIAL CLEARANCE
Intake Camshaft 0.15 - 0.20 mm
Exhaust Camshaft 0.15 - 0.20 mm
Assembly
1. Using special tool CH-20010 (1), install the cam-
shaft holder to hold the camshafts in place.
NOTE :
The camshaft holder will prevent the camshafts from
rotating in either direction.
2. Installation is in the reverse order of removal.
Installation Notes:
• Install the intake and exhaust camshaft bearing
caps in the proper order.
• Slowly tighten bolts to the specified torque.
• Follow the torque sequence as shown.
CYLINDER HEAD UNIT REPAIR
BESM020070
BESM020016
BESM020036
02
02–69Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine DESCRIPTIONITEMSTANDARD LIMIT
Intake Camshaft Axial
Clearance -
0.15 - 0.20 mm -
Exhaust Camshaft Axial
Clearance -
0.15 - 0.20 mm -
Intake Valve Guide
Clearance -
0.012 - 0.043 mm -
Exhaust Valve Guide
Clearance -
0.032 - 0.063 mm -
Valve Outer Diameter Intake Valve
5.98 ± 0.008 mm -
Exhaust Valve 5.96 ± 0.008 mm -
Valve Guide Inner
Diameter Intake Valve
5.4 ± 0.1 mm -
Exhaust Valve 5.4 ± 0.1 mm -
Fringe Thickness On Top
Of Valve Intake Valve
0.3 ± 0.15 mm -
Exhaust Valve 0.3 ± 0.15 mm -
Valve Tilt Angle Intake Valve
65°-
Exhaust Valve 68°-
Valve Height Intake Valve
107.998 mm -
Exhaust Valve 106.318 mm -
Torque Specifications
CAUTION:
When torquing a fastener in two steps, DO NOT use a torque wrench for the second step.
DESCRIPTION TORQUE (N·m)
Accessory Drive Belt Tensioner Pulley Bolt 35
Camshaft Bearing Cap Bolts 11
Clutch Pressure Plate Bolts 25
Connecting Rod Cap Bolts 1st Step: Tighten the bolt to 25 N·m
2nd Step: Tighten the bolt an additional 90°
Crankshaft Holder 28
Crankshaft Main Bearing Cap Bolts 1st Step: Tighten the bolt to 45 N·m
2nd Step: Tighten the bolt an additional 180°
Crankshaft Timing Belt Pulley Bolt 1st Step: Tighten the bolt to 130 N·m
2nd Step: Tighten the bolt an additional 65°
Crankshaft Vibration Damper Bolts 25
Cylinder Head Cover Bolts 11
Cylinder Head Bolts 1st Step: Tighten the bolt to 40 ± 5 N·m
2nd Step: Tighten the bolt an additional 90 ± 5° 3rd Step: Tighten the bolt an additional 90 ± 5°
Dipstick Bracket Bolts 11
Drive Plate Bolts (automatic transaxle) 75
Engine Left Mount Bolt 70
Engine Right Mount Bolt 70
Engine Front Mount Bolt 60
Engine Rear Mount Bolt 60
GENERAL INFORMATION
02
02–79Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine DESCRIPTIONTORQUE (N·m)
Engine To Transaxle Bolts 80
Exhaust Manifold Nuts 25
Exhaust Manifold Heat Shield Bolts 15
Exhaust Camshaft Timing Belt Pulley Bolt 120
Flywheel Bolts (manual transaxle) 75
Fuel Rail Bracket Bolts 11
Idler Pulley Bolt 40
Intake Camshaft Timing Belt Pulley Bolt 120
Intake Manifold Bolts 10
Intake Manifold Nuts 11
Intake Manifold Bracket Bolts 25
Lower Idler Pulley Bolt 45
Lower Cylinder Block Bolts 23
Oil Filter 25
Oil Pan Bolts 18
Oil Drain Plug 40
Oil Strainer Bolts 18
Oil Pump Bolts 11
(Apply with Loctite 5910 Thread-Locker)
Rear Timing Cover Bolts 7
Timing Belt Upper Cover Bolts 11
Timing Belt Lower Cover Bolts 11
Timing Belt Tensioner Assembly 27
Timing Belt Tensioner Pulley Bolt 30
Throttle Body Bolts 11
Upper Idler Pulley Bolt 45
GENERAL INFORMATION
02–80Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine CONDITIONPOSSIBLE CAUSE CORRECTION
Engine Miss On Acceleration 1. Dirty or incorrectly gapped spark
plugs.
2. Contamination in fuel system.
7. Burned, warped, excessive
clearance, or pitted valves.
4. Faulty ignition coil(s).1. Clean spark plugs and set gap.
2. Clean fuel system and replace
fuel filter.
3. Replace valves.
4. Test and replace if necessary.
(Refer to Appropriate Diagnostic
Information)
Engine Miss At High Speed 1. Dirty or incorrect spark plug gap.
2. Faulty ignition coil(s).
3. Dirty fuel injector(s).
4. Contamination in fuel system.1. Clean spark plugs and set gap.
2. Test and replace if necessary.
(Refer to Appropriate Diagnostic
Information)
3. Test and replace if necessary.
(Refer to Appropriate Diagnostic
Information)
4. Clean system and replace fuel
filter.
Engine Mechanical Diagnostics
CONDITION
POSSIBLE CAUSE CORRECTION
Valve Train Noise 1. High or low oil level in crankcase.
2. Thin or diluted oil.
3. Thick oil.
4. Low oil pressure.
5. Worn cam lobe.
6. Worn valve guides.
7. Excessive runout of valve seats
on valve faces.1. Check and correct engine oil
level.
2. Change oil to correct viscosity.
3. Change engine oil and filter.
4. Check and correct engine oil
level.
5. Install new camshaft.
6. Replace cylinder head.
7. Grind valve seats and replace
valves.
Connecting Rod Noise 1. Insufficient oil supply.
2. Low oil pressure.
3. Thin or diluted oil.
4. Excessive bearing clearance.
5. Connecting rod journal out-of-
round.
6. Connecting rod out-of-round.
7. Misaligned connecting rods.
8. Connecting rod nuts loose.1. Check engine oil level.
2. Check engine oil level. Inspect oil
pump relief valve and spring.
3. Change oil to correct viscosity.
4. Measure bearings for correct
clearance. Repair if necessary.
5. Replace crankshaft or grind
surface.
6. Replace connecting rod.
7. Replace bent connecting rods.
8. Tighten the connecting rod nuts.
Main Bearing Noise 1. Insufficient oil supply.
2. Low oil pressure.
3. Thin or diluted oil.
4. Excessive bearing clearance.
5. Excessive end play.
6. Crankshaft journal out-of-round or
worn.
7. Loose flywheel or torque
converter.1. Check engine oil level.
2. Check engine oil level. Inspect oil
pump.
3. Change oil to correct viscosity.
4. Measure bearings for correct
clearance. Repair if necessary.
5. Check thrust bearing for wear on
flanges.
6. Replace crankshaft or grind
journals.
7. Tighten to correct torque.
DIAGNOSIS & TESTING
02–88Chery Automobile Co., Ltd.