Defective Fuel System
Air in Fuel System
Incorrect Timing
Restricted Air Intake - Dirty Air Filter
Poor Quality Fuel
Dirty Fuet Filters
Out cf Fuel or Shut Off Closed
Worn or Damaged Transfer Pump, Leaking Diaphragm
Faults Injection Pump, Nozzles or Gaskets
Fuel Line Leaks
Wrong Timing Button in Injection Pump
Wrong Thickness Pump Mounting Gaskets
Run For Long Periods of Time at NO LOAD
- Oil Supply
Defective OH Gauge
i Oil in Crankcase
Oil Leaks From Engine Base or Connections
Light or Diluted Crankcase Oil
Leaky Oil Seals
Faulty Oil By-Pass
Worn Oil Pump
Heavy Oil or Clogged Passages
Dirty Oil Filter
KW.V.W.V.V.V;
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GOVERNOR SYSTEM
r Disconnected Linkage
Bindiig Linkage
: Wear in Linkage
Incorrect Governor Adjustment
High Spring Sensitivity
Incorrectly Installed Governor Yoke or Cup
Overloaded Generator
OLINC SYSTEM ;
Insufficient Coolant
Faulty Thermostat
Worn Water Pump or Defective Seals
Water Passages Restricted
Blown Head Gasket
Overheating
Restricted or Too Long Water Lines
Defective Expansion Tank Pressure Cap
Dirt on Cooling Fins (Air Cooled)
Inadequate Air Circulation (Air Cooled)
INTERNAL ENGINE
Loose Piston
Loose Connecting Rod or Crankshaft Bearing
Incorr-sct Valve Clearance
Broken or Weak Valve Spring
High Exhaust Back Pressure
Vaives Not Seating Properly
Worn Bearings
Worn Cylinder Walls,'Pistons. Rings
Sticking Valves
Worn or Dirty Valve Guides
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