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I have a Kohler 10kw diesel generator that start easily. However the HZ only come up to 45hz. I can bring up the RPM using the governor adjustment but this causes the engine to create white exhaust and unburned fuel.

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Hi. What you are experiencing is known as "wet stacking". Read on. A diesel engine is subject to "wet stacking" or over fueling if run for long periods of time with ultra light loads (less than 40% of the rated output). "Wet Stacking" causes the engine to smoke and run rough because the injectors become carbonized. Running a heavy load will usually clean up the over-fuel condition and allow the engine to perform properly. Diesel engines operate better and more fuel efficient when loaded (70-80% of the rated output is optimum); J.

Posted on Jul 09, 2010

  • telwaro Jul 09, 2010

    Thanks Jo. Will this also correct the low hz output as well? Currently 45hz. At 45 hz the gen will not start my air conditioner water pump. it simply viberates without rotating. Voltage is also down at 105VAC.



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