Chery Tiggo. Manual — part 48
Oil Filter Wrench
MB-991828
Oil Filter Wrench
MB-991396
Lubrication System
The engine lubrication system operates as follows:
• Oil is drawn into the oil pump through the oil pump strainer tube in the sump of the oil pan.
• Oil is pumped through the oil filter to the cylinder block.
• Oil enters the main oil gallery where it is distributed to the crankshaft main journals and to the cylinder head.
• From the main journals, the oil is routed through cross-drilled passages in the crankshaft to lubricate the con-
necting rod bearings. Controlled leakage through the crankshaft main bearings and connecting rod bearings is
slung radially outward to cool and lubricate the cylinder walls as well as the entire connecting rod, piston and
piston ring assembly.
• The lubrication system is a fully force-fed, full-flow filtration type. The oil pump is a gear type which is driven by
the crankshaft via the timing belt.
GENERAL INFORMATION
02
Oiling System
Oil Pump
1 - Engine Front Cover
2 - Oil Pump Driving Gear
3 - Oil Pump Driven Gear
4 - Oil Pump Cover
5 - Oil Pan
6 - Oil Strainer
7 - Oil Filter
8 - Oil Filter Adaptor
1 - Front End Cover
2 - Front End Cover Pad
3 - Oil Pump Rear Cover
4 - Oil Pump Driven Gear
5 - Oil Pump Driving Gear
GENERAL INFORMATION
LTSM020045
LTSM020046
Oil Filter and Oil Filter Adaptor
1 - Oil Filter Adaptor
2 - Gasket
3 - Pressure Limiting Valve Plunger
4 - Spring
5 - Spacer
6 - Plug Screw
7 - Oil Filter
GENERAL INFORMATION
LTSM020047
02
DIAGNOSIS & TESTING
Engine Performance Diagnostics
CONDITION
POSSIBLE CAUSES
CORRECTION
Engine Does Not Start
1. Weak battery.
2. Corroded or loose battery
connections.
3. Faulty starter.
4. Faulty coil(s) or control unit.
5. Incorrect spark plug gap.
6. Contamination in fuel system.
7. Faulty fuel pump.
8. Incorrect timing.
1. Test battery. Charge or replace if
necessary.
2. Clean and tighten battery
connections. Apply a coat of light
mineral grease to terminals.
3. Test starting system. Check for
codes. (Refer to Appropriate
Diagnostic Information)
4. Test and replace as needed.
(Refer to Appropriate Diagnostic
Information)
5. Set gap.
6. Clean system and replace fuel
filter.
7. Test fuel pump and replace as
needed. (Refer to Appropriate
Diagnostic Information)
8. Check for a skipped timing belt.
Engine Stalls Or Idles Rough
1. Idle speed too low.
2. Incorrect fuel mixture.
3. Intake manifold leakage.
4. Faulty ignition coil(s).
1. Test minimum air flow. (Refer to
Appropriate Diagnostic Information)
2. (Refer to Appropriate Diagnostic
Information)
3. Inspect intake manifold, manifold
gasket, and vacuum hoses.
4. Test and replace if necessary.
(Refer to Appropriate Diagnostic
Information)
Engine Loss Of Power
1. Dirty or incorrectly gapped spark
plugs.
2. Contamination in fuel system.
3. Faulty fuel pump.
4. Incorrect valve timing.
5. Leaking cylinder head gasket.
6. Low compression.
7. Burned, warped, excessive
clearance, or pitted valves.
8. Plugged or restricted exhaust
system.
9. Faulty ignition coil(s).
10. Burned spark plugs.
1. Clean spark plugs and set gap.
2. Clean system and replace fuel
filter.
3. Test and replace if necessary.
(Refer to Appropriate Diagnostic
Information)
4. Correct valve timing.
5. Replace cylinder head gasket.
6. Test compression of each
cylinder.
7. Replace valves.
8. Perform exhaust restriction test.
Install new parts.
9. Test and replace if necessary.
(Refer to Appropriate Diagnostic
Information)
10. Replace spark plugs.
DIAGNOSIS & TESTING
02
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