9929758 R01 - 2019 TAYLOR-DUNN G-100 Service Manual
© Copyright TAYLOR-DUNN
3.29
Low Compression
• Cylinder head gasket leak
• No valve clearance (cam wear)
• Cylinder or piston worn
• Piston rings worn, leaking, broken, or sticking
• Bent valve or stuck valve
• Valve spring broken or weak
• Valve not seating properly (bent or carbon
accumulated on sealing surface)
Backfiring
• Fouled spark plug or incorrect plug or plug gap
• Exhaust system air leaks
• Valve sticking
• Ignition system faulty:
• Spark plug cap cracked / broken
• Ignition coil faulty
• Ignition or kill switch circuit faulty
• Poor connections in ignition system
• Ignition timing incorrect
• Sheared flywheel key
COOLING SYSTEM
Overheating
• Low coolant level
• Air in cooling system
• Wrong type/mix of coolant
• Faulty pressure cap or system leaks
• Restricted system (mud or debris in radiator fins
causing restriction to air flow, passages blocked in
radiator, lines, pump, or water jacket, accident
damage)
• Lean mixture (vents, fuel pump or fuel valve)
• Fuel pump output weak
• Electrical malfunction
• Water pump failure/ Loose impeller
• Thermistor failure
• Cooling fan inoperative or turning too slowly (perform
current draw test)
• Low oil level
• Spark plug incorrect heat range
• Faulty hot light circuit
• Thermostat stuck closed or not opening completely
• Radiator is missing its internal diverter plate not
allowing coolant to flow through entire radiator
Temperature Too Low
• Thermostat stuck open
• Thermostat missing
Leak at Water Pump Weep Hole
• Faulty water pump mechanical seal (coolant leak)
• Faulty pump shaft oil seal (oil leak)
Summary of Contents for G0-010-00
Page 60: ...2 36 9929758 R01 2019 TAYLOR DUNN G 100 Service Manual Copyright TAYLOR DUNN NOTES MAINTENANCE...
Page 196: ...4 48 9929758 R01 2019 TAYLOR DUNN G 100 Service Manual Copyright TAYLOR DUNN NOTES FUEL SYSTEM...
Page 224: ...5 28 9929758 R01 2019 TAYLOR DUNN G 100 Service Manual Copyright TAYLOR DUNN NOTES CVT SYSTEM...