Linhai ATV 500-D T3 EFI Service Manual page 195

CHAPTER 3 ENGINE
Complaint
Engine is
noisy
Slipping
Clutch
Symptom and Possible Causes
Valve Chatter
1. Excessive valve clearance
2. Worn or broken valve spring
3. Worn rocker arm or camshaft
Noise from Piston
1. Worn piston
2. Worn cylinder
3. Carbon deposit in combustion chamber
4. Worn piston pin or pin hole
5. Worn piston ring or piston ring groove
Noise from Timing chain
1. Stretched chain
2. Worn sprocket wheel
3. Faulty chain tensioner
Noise from Clutch
1. Worn or damaged crankshaft spline
2. Worn inner race spline
Noise from Crankshaft
1. Rattling bearing
2. Worn or burnt crank pin bearing
3. Excessive thrust clearance
Noise from CVT
1. Worn or slipping drive belt
2. Worn rollers in primary sheave
Noise from Transmission
1. Worn or damaged gear
2. Worn or damaged input or output shafts
3. Worn bearing
4. Worn bushing
1. Worn or damaged clutch shoes
2. Weakened clutch shoe spring
3. Worn clutch housing
4. Worn or slipping drive belt
LH500ATV-D T3 EFI SERVICE MANUA 19.0
Replace
Replace
Replace
Replace
Replace
Clean
Replace
Replace
Replace chain & sprocket
Replace chain & sprocket
Repair or replace
Replace crankshaft
Replace inner race
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
REplace
CHAPTER 3 ENGINE
Remedy
PAGE. 3- 162