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RPM Caterpillar generator not stable. Any solutions ? Thanks

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Bill Boyd

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Problem with the governor controls
if electronic controlled governor it could be the electronic system is faulty
If manual control , check for governor lever operation
check for fuel flow problems , blocked filters , low fuel level vent ing for the fuel tank blocked

Posted on May 28, 2016


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Bill Boyd

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SOURCE: I have a perkins generator 120kw when it reaches 80kw the rpm dropes but at 50kw its stable what could be the problem ?

could be a problem with the condition of the motor ( do a compression check )
could be a governor problem in the fuel pump or possible a fuel delivery problem
check for a black slime in the fuel tank and if found clean out the entire fuel system, filters lines and with the new fuel use a diesel conditioner . if the fuel is clean then the problem will be in the fuel pump not giving full fuel to the injectors under load
if the engine rpms are electronically controlled ( throttle lever to electronic control) check that movement of the lever or the control unit

Posted on Jan 22, 2016


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