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Tractor Principles / The Action, Mechanism, Handling, Care, Maintenance and Repair of the Gas Engine Tractor cover

Tractor Principles / The Action, Mechanism, Handling, Care, Maintenance and Repair of the Gas Engine Tractor

Chapter 29: CHAPTER XIV CAUSES OF TROUBLE
By Roger B. Whitman
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About This Book

A practical, illustrated guide to gasoline-powered farm tractors that explains engine operation, fuels and carburetion, ignition systems (magneto and battery), and transmission and clutch designs alongside chassis and steering arrangements. It covers lubrication methods, breaking-in, daily inspection, cold-weather starting, driving techniques, and common adjustments and repairs. Various component types and design variations are compared so readers can identify parts and troubleshoot across different makes. Detailed diagrams and step-by-step maintenance advice support hands-on care, timing and governor adjustment, carburetor and ignition tuning, and safe, effective operation.

CHAPTER XIV
CAUSES OF TROUBLE

 
Engine will not start. No mixture.
No ignition.
No compression.
Engine starts,
 but will not
  continue running.		 Clogged fuel pipe or strainer.
Air-bound tank or carburetor.
Clogged exhaust.
Wet spark plugs.
Governor out of adjustment.
Engine loses
   power.		 Retarded spark.
Poor compression.
Overheating.
Clogged exhaust.
Incorrect mixture.
Governor out of adjustment.
Tight bearings.
Dragging brake.
Slipping clutch.
Overloaded.
Engine stops suddenly. Ignition trouble.
Engine slows down
   and stops.		 Clogged fuel supply.
Incorrect Mixture.
Overheated.
Regular miss in
   one cylinder.		 Defective spark plug
   or wire.
Irregular miss in
   all cylinders.		 Sticking contact breaker.
Defective distributor.
Clogged fuel line.
Irregular fuel feed.
Water in fuel.
Faulty ignition connections.
Engine runs
    unevenly.		 Incorrect spark plug gap.
Incorrect mixture.
Binding carburetor float.
Sticking valves.
Sticking governor.
Engine overheats. Spark retarded.
Faulty cooling.
Faulty lubrication.
Engine smokes. Black smoke;
mixture too rich.
Blue smoke; too much oil.
Broken or stuck piston rings.
Poor oil.
Engine backfires
   through carburetor.		 Mixture too lean.
Sticking inlet valve or
   weak inlet valve spring.
Explosions in
   exhaust pipe.		 Missing spark.
Mixture too rich.
Sticking exhaust valve.