2009 CHERY TIGGO engine

Downloaded from www.Manualslib.com manuals search engine Inspection
Crankshaft Axial Clearance
•Check the axial clearance of the crankshaft.
CRANKSHAFT AXIAL CLEARANCE
DESCRIPTION SPECIFICATION MAXIMUM LIMIT
Crankshaft 0.05 - 0.18 mm 0.25 mm
Crankshaft Bearing Oil Clearance (Plastigauge)
•Check the oil clearance of the crankshaft.
Clean all engine oil off of the crankshaft jour-
nals.
Cut the plastigauge into lengths as wide as the crankshaft journal.
Lay the plastigauge across the crankshaft journal.
Carefully install the main bearing cap.
Torque the main bearing cap to the specified torque.
Carefully disassemble the main bearing cap.
Use the measuring rule imprinted on the plas- tigauge package to measure the width of the
widest part of the plastigauge.
ENGINE UNIT REPAIR
BESM020076
BESM020077
02–236Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine CRANKSHAFT BEARING OIL CLEARANCE
Standard Clearance 0.02 - 0.04 mm
Maximum Clearance 0.1 mm
Crankshaft Main Journal Roundness
•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 0.006 mm. Limits of roundness on any
crankshaft rod journals should be held to 0.006
mm. DO NOT nick crank pin or bearing fillets. Lim-
its of out of round on any crankshaft journals
should be held to 0.006 mm.
CRANKSHAFT MAIN JOURNALS
DESCRIPTION SPECIFICATION MAXIMUM LIMIT
Crankshaft Journal Roundness 0.006 mm0.006 mm
Assembly
NOTE :
Cleanliness is extremely important during the engine assembly procedure. Any foreign material, including any mate-
rial created while cleaning gasket surfaces, that enters the oil passages, coolant passages or the oil pan can cause
engine failure.
Before installing the main bearing bolts, clean the threads and oil the bolts with clean engine oil.
Crankshaft Main Bearings
•Perform the following when replacing the crankshaft main bearings:
Measure and record the external diameter of
the crankshaft main journals.
ENGINE UNIT REPAIR
BESM020075
LTSM020119
02
02–237Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine •Identify the bearing markings (1) & (2) on the cylin-
der block.
• The bearing will have an identification mark (1)
imprinted in the position as shown.
IDENTIFYING CRANKSHAFT MAIN BEARINGS
Combination of Crankshaft Main Journal and Spindle Bore Identification
mark and color
of No. 1, 2, 4, 5 journal bearing Identification
mark and color
of No. 3 journal bearing
Crankshaft Main Journal
Identification
mark of spindle bore
Group Identification
Color External
Diameter (mm)
1 Yellow 56.994 - 57.000 0
Green Black
1 Yellow Green
2 None Yellow
2 None 56.988 - 56.994 0
Yellow Green
1 None Yellow
2 Blue None
3 White 56.982 - 56.988 0
None Yellow
1 Blue None
2 Red Blue
NOTE :
As an example, if the identification color of the crankshaft main journal is yellow and the identification mark of spindle
bore is “1”, choose the No. 1,2,4,5 bearing of which identification mark is “2” and identification color is “yellow” and
No.3 bearing of which identification mark is “1” and identification color is “green”.
ENGINE UNIT REPAIR
LTSM020127
LTSM020181
02–238Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine •Main bearing and thrust bearing installation.
Install the main bearings with oil grooves on
the cylinder block side.
Install the main bearings without oil grooves (2) on the bearing cap.
Install the two thrust bearings on crankshaft journal No. 3. Apply clean oil to the surface of
thrust bearing.
The grooved (1) side of the thrust bearing should face towards the crankshaft.
Main Bearing Caps and Bolts
• Install the main bearing caps with the arrow on the main caps (1) facing the front of the engine.
• Install the main bearing cap bolts in the sequence
shown.
• Torque the bearing cap bolts in the sequence
shown to 25 N·m.
• Tighten the main bearing cap bolts an additional 90°- 100° in the sequence shown.
CAUTION:
If the bolts are over tightened (exceed angle of
100°), loosen the bolts and restart the torque
sequence from Step 1
•After installing the main bearing caps, assure that the crankshaft rotates smoothly.
ENGINE UNIT REPAIR
LTSM020128
LTSM020129
LTSM020130
02
02–239Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine •Inspect the crankshaft axial clearance.
If the crankshaft axial clearance exceeds the
maximum limit, replace the No.3 crankshaft
thrust bearing.
CRANKSHAFT AXIAL CLEARANCE
DESCRIPTION SPECIFICATION MAXIMUM LIMIT
Crankshaft 0.05 - 0.18 mm 0.25 mm
ENGINE UNIT REPAIR
BESM020076
02–240Chery 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 78 N·m
2nd Step: Completely loosen the bolt
3rd Step: Retighten the bolt to 20 N·m
4th Step: Tighten the bolt an additional 90°
5th Step: Finish tightening the bolt an additional 90°
Cylinder Head Cover Bolts 11 N·m
Clearance Specifications
DESCRIPTIONSPECIFICATION (mm)
Cylinder Head Flatness 0.03
Intake Valve Deflection 0.02
Exhaust Valve Deflection 0.04
Spring Height 51
Disassembly
NOTE :
The following special tools are required to perform the repair procedure:
•MD-998772 - Valve Spring Compressor
• MD-998774 - Valve Oil Seal Installer
NOTE :
Replacement cylinder head comes complete with valves, seals, springs, retainers, keepers, tappets, and camshafts. 1. Remove camshaft.
2. Using the special tool MD-998772 (1), compress the valve spring.
3. Remove the valve keeper, valve spring retainer and valve spring.
4. Push the valve stem from the cylinder head and remove the valve.
LTSM020092
02
02–241Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 5. Using special tool CH-20013 (1), Remove the valveoil seal.
6. Remove the valve guide.
7. Remove the spark plugs.
Inspection
• Cylinder head must be flat within 0.03 mm.
• Inspect camshaft bearing journals for scoring.
• Remove carbon and varnish deposits from inside of
valve guides with a valve guide cleaner.
• Check the valve guide height.
Assembly
1. Install new valve guide if necessary.
2. Install new valve seat if necessary.
3. Using special tool MD-998774 (1), install the new
valve oil seal.
4. Install the valves into the cylinder head (larger diameter on intake side).
5. Install the valve springs.
6. Install the valve spring retainers.
CYLINDER HEAD UNIT REPAIR
LTSM020225
BESM020068 LTSM020094
02–242Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 7. Using valve spring compressor MD-998772 (1),compress the valve springs.
8. Install the valve keepers.
9. Strike the valve stem lightly with a plastic hammer after installation to verify proper assembly.
Camshaft
Specifications
Camshaft Specifications
DESCRIPTION SPECIFICATION MINIMUM LIMIT
Intake Cam Lobe Height 37.5 mm37 mm
Exhaust Cam Lobe Height 36.99 mm36.49 mm
CYLINDER HEAD UNIT REPAIR
LTSM020092
02
02–243Chery Automobile Co., Ltd.