2009 CHERY TIGGO engine

Downloaded from www.Manualslib.com manuals search engine Disassembly
1. Remove the camshaft bearing caps bolts.NOTE: Equally loosen camshaft bearing cap bolts
in several steps.
2. Remove the camshaft bearing caps and place them in proper order. NOTE: The camshaft bearing caps are marked for identification.
3. Remove the camshafts and then remove the camshaft seals.
Inspection
Inspect the camshaft for the following:
• Measure the camshaft cam lobe height.
• If wear is beyond the limit, replace the camshaft.
CAMSHAFT CAM LOBE HEIGHT
Intake Cam Lobe Height 37.15 mm
Exhaust Cam Lobe Height 37.05 mm
CYLINDER HEAD UNIT REPAIR
BESM020035
BESM020037
02
02–140Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine •Measure the outer diameter of the camshaft
journal.
OUTER DIAMETER OF CAMSHAFT JOURNAL
Journal #1 Outer Diameter 31.934 - 31.95 mm
Journal #2, #3, #4, #5, Outer Diameter 23.947 - 23.96 mm
• Measure the inner diameter of the camshaft
bearing.
INNER DIAMETER OF CAMSHAFT BEARING
Cam Bearing #1 Inner Diameter 32 - 32.025 mm
Cam Bearing #2, #3, #4, #5, Inner Diameter 24 - 24.021 mm
• Calculation of camshaft journal clearance
Journal clearance = (inner diameter of camshaft bearing) - (outer diameter of camshaft journal)
CAMSHAFT JOURNAL CLEARANCE
Journal #1 Clearance 0.05 - 0.091 mm
Journal #2, #3, #4, #5 Clearance 0.04 - 0.074 mm
CYLINDER HEAD UNIT REPAIR
BESM020038
BESM020039
02–141Chery 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
02–142Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Valve & Valve Guides
Specifications
Valve & Valve Guide Specifications
DESCRIPTIONSPECIFICATION (mm)
Intake Valve Deflection 0.02
Exhaust Valve Deflection 0.04
Intake Valve Guide Clearance 0.012 - 0.043
Exhaust Valve Guide Clearance 0.032 - 0.063
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
1. Using the special tool CH-20018 (1), compress the valve springs.
CYLINDER HEAD UNIT REPAIR
BESM020067
02–143Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 2. Remove the valve keeper (1), valve spring retainer(2) and valve spring (3).
3. Remove valves (4) from the cylinder head.
Inspection
Inspect the valves for the following:
• Clean all valves thoroughly and discard burned,
warped and cracked valves.
• Check valve seats and valve faces for damage.
• When reconditioning valves follow the specifications
outlined for both intake and exhaust valves.
CYLINDER HEAD UNIT REPAIR
VISM080041
BESM020066
02
02–144Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine ITEMSPECIFICATION (mm)
Valve Outer Diameter Intake Valve
5.98 ± 0.008
Exhaust Valve 5.96 ± 0.008
Valve Guide Inner Diameter Intake Valve
5.4 ± 0.1
Exhaust Valve 5.4 ± 0.1
Fringe Thickness On Top Of Valve Intake Valve
0.3 ± 0.15
Exhaust Valve 0.3 ± 0.15
Valve Tilt Angle Intake Valve
65°
Exhaust Valve 68°
Valve Height Intake Valve
107.998
Exhaust Valve 106.318
• Measure valve deflection.
VALVE DEFLECTION LIMIT (DIAL GAUGE READING)
Intake 0.02 mm
Exhaust 0.04 mm
• If it exceeds the limit, check valve to valve guide clearance.
Measure valve stem diameter and valve guide inner diameter.
Check that clearance is within specification.
If it exceeds the limit, replace valve or valve
guide.
VALVE TO VALVE GUIDE CLEARANCE STANDARD
Intake 0.012 - 0.043 mm
Exhaust 0.032 - 0.063 mm
Assembly
1. Install the valves into the cylinder head (larger diameter on intake side).
2. Install the valve springs.
3. Install the valve spring retainers.
CYLINDER HEAD UNIT REPAIR
BESM020073
02–145Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 4. Using valve spring compressor CH-20018 (1), com-press the valve springs.
5. Install the valve keepers.
6. Strike the valve stem lightly with a plastic hammer after installation to verify proper assembly.
Valve Springs
Specifications
Valve Spring Specifications
DESCRIPTION SPECIFICATION (mm)
Spring Free Length 47.7
Spring Height At 620 Newtons Of Pressure 32.0
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
1. Using the special tool CH-20018 (1), compress the valve springs.
CYLINDER HEAD UNIT REPAIR
BESM020067
BESM020067
02
02–146Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 2. Remove the valve keeper (1), valve spring retainer(2).
3. Remove the valve springs (3) from the cylinder head.
Inspection
Inspect the valve springs for the following:
•Whenever valves have been removed for inspec-
tion, reconditioning or replacement, valve springs
should be tested for correct load.
• Discard the springs that do not meet specifications.
• The following specifications apply to both intake
and exhaust valve springs.
VALVE SPRING LENGTH/HEIGHT
Spring Free Length 47.7 mm
Spring Height At 620 Newtons Of Pressure 32.0 mm
If it is not within specifications, replace the valve spring.
CYLINDER HEAD UNIT REPAIR
VISM080040
BESM020072
02–147Chery Automobile Co., Ltd.