Chery Tiggo. Manual — part 25
• 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
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• 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
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Valve & Valve Guides
Specifications
Valve & Valve Guide Specifications
DESCRIPTION
SPECIFICATION (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
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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
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