Diagnostics

• The engine starts and stops

  The engine starts and stops Checks by the user Dirty fuel filter element Restriction in filter/cleaner or air induction system Air in fuel [...]
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• Bad compression

  Bad compression Checks by the user Restriction in filter/cleaner or air induction system Valve tip clearances are incorrect Check by the workshop personnel Valve timing is incorrect Cylinder head gasket [...]
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• Crankcase pressure

  Crankcase pressure Checks by the user Restriction in breather pipe Vacuum pipe leaks or fault in exhauster Check by the workshop personnel Cylinder head gasket leaks Worn cylinder bores Piston rings [...]
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• The engine temperature is too high

  The engine temperature is too high Checks by the user Restriction in filter/cleaner or air induction system Fault in atomisers or atomisers of an incorrect type Fault in cold start system Restriction in exhaust pipe Fan [...]
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• The pressure of the lubricating oil is too high

  The pressure of the lubricating oil is too high Checks by the user Wrong grade of lubricating oil Defective gauge Check by the workshop personnel Relief valve does not [...]
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• Vibration

  Vibration Checks by the user Fault in atomisers or atomisers of an incorrect type Restricted movement of engine speed control Engine temperature is too high Fan damaged Fault in engine mounting or flywheel [...]
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• The engine runs erratically

  The engine runs erratically Checks by the user Fault in stop control Restriction in a fuel pipe Fault in fuel lift pump Dirty fuel filter element Restriction in filter/cleaner or air induction system Air in fuel [...]
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• The engine knocks

  The engine knocks Checks by the user Fault in fuel lift pump Fault in atomisers or atomisers of an incorrect type Fault in cold start system Wrong type or grade of fuel used Engine temperature is too high Valve [...]
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• The pressure of lubricating oil is too low

  The pressure of lubricating oil is too low Checks by the user Wrong grade of lubricating oil Not enough lubricating oil in sump Defective gauge Dirty lubricating oil filter element Check by the workshop [...]
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• Blue or white exhaust smoke

  Blue or white exhaust smoke Checks by the user Wrong grade of lubricating oil Fault in cold start system Engine temperature is too low Too much oil or oil of wrong specification used in wet type oil cleaner Check by [...]
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• Black exhaust smoke

  Black exhaust smoke Checks by the user Restriction in filter/cleaner or air induction system Fault in atomisers or atomisers of an incorrect type Fault in cold start system Wrong type or grade of fuel used Restriction in [...]
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• High fuel consumption

  High fuel consumption Checks by the user Restriction in filter/cleaner or air induction system Fault in atomisers or atomisers of an incorrect type Fault in cold start system Wrong type or grade of fuel used Restricted [...]
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• Misfire

  Misfire Checks by the user Restriction in a fuel pipe Fault in fuel lift pump Dirty fuel filter element Air in fuel system Fault in atomisers or atomisers of an incorrect type Fault in cold start [...]
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• Not enough power

  Not enough power Checks by the user Restriction in a fuel pipe Fault in fuel lift pump Dirty fuel filter element Restriction in filter/cleaner or air induction system Air in fuel system Fault in atomisers or [...]
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• The engine is difficult to start

  The engine is difficult to start Checks by the user Starter motor turns engine too slowly Fault in stop control Restriction in a fuel pipe Fault in fuel lift pump Dirty fuel filter element Restriction in [...]
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• The starter motor turns the engine too slowly

  The starter motor turns the engine too slowly Checks by the user Battery capacity low Bad electrical connections Fault in starter motor Wrong grade of lubricating [...]
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• The engine does not start

  The engine does not start Checks by the user Starter motor turns engine too slowly Fuel tank empty Fault in stop control Restriction in a fuel pipe Fault in fuel lift pump Dirty fuel filter element Air [...]
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