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Old 19-04-2015, 05:14   #1
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Join Date: Mar 2013
Location: SEA
Boat: 44'
Posts: 148
Kohler 6 EOD with ADC 2100 no good?

I know NL is a better bet but I may be getting a used Kohler with ADC due to budget constrain.

The older models for Kohler 6.5 EFOZ were simple genset without the Advanced Digital Control computer board.

All the new models comes with ADC 2100 which cost about USD 900 a piece.

Does anyone has any idea how well these "magic board" last in a sailboat?

Would you stay away from Kohler with computer board ?

Is there a way to get the Kohler to run without this ADC which consist of a computer to start/stop and AVR to regulate the voltage?

I am asking this question assuming I get the kohler genset and the ADC gets faulty at some exotic anchorage like Chagos in the middle of Indian Ocean. Like to know what I can do besides keeping several "magic board" as spares.

Thanks for your response.

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Old 25-04-2015, 15:57   #2
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Join Date: Mar 2013
Location: SEA
Boat: 44'
Posts: 148
Re: Kohler 6 EOD with ADC 2100 no good?

After talking to a local alternator repair and rewinding shop, the specialist said they have modified of the kohler gensets. The ADC 2100 board is a computer with AVR which is needed to regulate the alternator to produce 120v/240v.

Coincidently, my friend who is using 13EZOFD has a problem with his genset giving error code of CC1 and SCF0. SCF0 = software communication fault 0 is the computer board gone bad and had to be replaced?

So this what the common modifications are made to the gensets:-

1. Remove the faulty ADC 2100.

2. Install a separate universal AVR to the alternator end. All this is done by the alternator specialist.

3. The mechanic will handle the basic engine side, rewiring the sensors ie low oil pressure, low coolant, high engine temperature and no raw water flow, etc to control relays to cut off the power to solenoid. The engine speed is controlled by a mechanical governor.

Interestingly the engine block of NL for 0.762 liter comes from Japan manufacturer which supplies to Perkins and Volvo.

Will keep my progress posted here on the modification.
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