Starts instantly then quits. Sensor? Oil and coolant reservoir are full. Anything else I can check before calling for service?
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Thread: Kohler 21k starts but dies
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12-15-2018 10:27 AM #1
Kohler 21k starts but dies
1977 Hatteras 58' MY, Hull No. 304, 4-stateroom galley up model with 8V71TIs in Knoxville, Tennessee
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Re: Kohler 21k starts but dies
That s typically a sensor problem. Oil pressure, coolant temp, water flow on some. I always keep a full set on board. Sometimes you can bypass them one at a time to troubleshoot
Doesnitnquineight away or after a few minutes when fully warmed up?Pascal
Miami, FL
1970 53 MY #325 Cummins 6CTAs
2014 26' gaff rigged sloop
2007 Sandbarhopper 13
12' Westphal Cat boat
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Re: Kohler 21k starts but dies
I find if you don’t warm it up before you switch it over to a full load it dies. Just another thought.
SEVEN
1979 53' MY Hull #563
Antioch, California
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12-15-2018 11:57 AM #4
Re: Kohler 21k starts but dies
It fires and then instantly quits. No load yet.
1977 Hatteras 58' MY, Hull No. 304, 4-stateroom galley up model with 8V71TIs in Knoxville, Tennessee
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Re: Kohler 21k starts but dies
Kohler sets need to generate 120 v a/c after start, if not they shut down instantly, see you manual, it's described in there.
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Re: Kohler 21k starts but dies
How old is it and is it controlled by electronics like Ohnos or purely mechanical like NLs?
Never had to troubleshoot a Koehler. On Some Ohnos, there is no oil pressure switch, instead the oil pressure sender output is used by the electronics to shut down if it drops below alarm level so you can not bypass it for testing. If you have both a sender and switch, you try either disconnecting or grounding the switch same with the others. Some senders are normally open others are normally closed.Pascal
Miami, FL
1970 53 MY #325 Cummins 6CTAs
2014 26' gaff rigged sloop
2007 Sandbarhopper 13
12' Westphal Cat boat
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12-15-2018 02:16 PM #9
Re: Kohler 21k starts but dies
I just remembered last time this happened I called the tech and when he arrived it ran perfectly. Apparently it’s an intermittent problem.
1977 Hatteras 58' MY, Hull No. 304, 4-stateroom galley up model with 8V71TIs in Knoxville, Tennessee
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Re: Kohler 21k starts but dies
As mentioned a full set of replacement sensors-switches is a must have on board.
Pascal
Miami, FL
1970 53 MY #325 Cummins 6CTAs
2014 26' gaff rigged sloop
2007 Sandbarhopper 13
12' Westphal Cat boat