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TROUBLE LOCATING CHART
Trouble
Reason
Low temperature
Fuel supply failure Check
by turning engine and
listen for the
characteristic squeak in
the injector
Engine will not
Poor compression
start
Incorrect lubricating oil
Causes
Failure to prime (see Cold Starting)
No fuel in tank',
Air in pipe line.
Broken fuel pipe or leaking connection
Fuel filler choked
Faulty injector nozzle
Fuel pump plunger sticking
Fuel pump tappet sticking
Valves sticking
Cylinder head loose
Cylinder head gasket blown
Piston rings stuck in groove
Worn cylinder and piston
Valves not sealing properly
Too high a viscosity oil causing
excessive engine drag
Suggested Remedy
Prime with lubricating oil
Fill tank and bleed fuel system, if applicable
Repair or renew the pipe or tighten the connection
Fit new fuel filter element
Fit new nozzle
Fit new pump
Free and clean tappet
Free the valves
Tighten all nuts
Fit new gasket
Check rings and clean the piston
Overhaul the engine
Check valve springs
Grind in if necessary
Check the valve clearance
Drain the sump and fill with correct oil
9
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