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Troubleshooting
Low air pressure in cylinder： Blue smoke
1. valves 1. Abrasion of valves
Incorrect adjustment of valve clearance 2. Damage or leakage of oil drip pan
Poor seal of valves 3. Leakage of cylinder head gasket
Wrong timing of gas distribution 4. Wide clearance between piston rings
Crack of valve spring
2. Cylinder head Noisy
Poor connection between cylinder head and spark plug 1.Incorrect valve adjustment
Damage of leakage on cylinder head gasket . 2.Valve seized up or spring crack
Crack or sand hole on cylinder head 3. Camshaft worn out
3. Cylinder body, piston 4. Long timing chain
Wide clearance between piston rings or crack 5. Wrong timing of gas distribution
Pistion with crack or damage 6. Abrasion or damage on tensioner of timing chain
Big cylinder bore or with sand hole 7. Abrasion of timing sprocket wheel
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