84 Onan 6.5k Generator won't shut off

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Coonash
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84 Onan 6.5k Generator won't shut off

Post by Coonash »

OK, just about got my boat complete. One issue I need to resolve is being able turn generator off. Currently the switch by helm and on the generator will turn it on but not turn it off. Can someone point me in the right direction on what to look for when I head out there today. Maybe needs a new relay?
Ash
1984 Trojan International 10 Meter
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gettaway
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Re: 84 Onan 6.5k Generator won't shut off

Post by gettaway »

1984 Silverton 37C
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Scott
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Re: 84 Onan 6.5k Generator won't shut off

Post by Drafter »

Went through this last summer.... Likely one of the 3 fuses on the front of the panel. Exact same unit. Can't remember which one. I accidentally kicked one while working on something else. Weirdest thing that it would start and then not be able to shut off!
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Re: 84 Onan 6.5k Generator won't shut off

Post by Drafter »

It's an older automotive type glass fuse on the generator itself. I broke the fuse by accidentally kicking it. New fuse, problem solved!
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Coonash
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Re: 84 Onan 6.5k Generator won't shut off

Post by Coonash »

I appreciate the manual and advice. I didn't get a chance this weekend to go to marina, but will check it out this week.
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Coonash
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Re: 84 Onan 6.5k Generator won't shut off

Post by Coonash »

All the fuses were good. Now time to check the wiring.
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Big D
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Re: 84 Onan 6.5k Generator won't shut off

Post by Big D »

There should be a stop relay in the unit. It may have failed. Also check all the connections at the switches, at the terminal blocks, at the fuse holders, and pins in the harness plug if applicable. Check the on/off switches too. It could be that the "off" side of both switches are not making contact. You can check that easily with a meter.
She was a 1969 36 ft wooden beauty with big blue 440s that we'll miss forever.
And thanks to the gang, 2012 Trojan Boater Of The Year
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Coonash
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Re: 84 Onan 6.5k Generator won't shut off

Post by Coonash »

Well, had another issue pop up. Had to change fuel line.
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Flyboy
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Re: 84 Onan 6.5k Generator won't shut off

Post by Flyboy »

did you get it to shut down? If so what was the problem. curious for future referrence.
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Coonash
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Re: 84 Onan 6.5k Generator won't shut off

Post by Coonash »

Flyboy wrote:did you get it to shut down? If so what was the problem. curious for future referrence.
Haven't gotten back to this yet. Had some other issues pop up that needed more attention. Will get back to it soon.
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Flyboy
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Re: 84 Onan 6.5k Generator won't shut off

Post by Flyboy »

Let us know when you figure it out.
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larryeddington
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Re: 84 Onan 6.5k Generator won't shut off

Post by larryeddington »

Never heard back what caused the no shutdown condition, but my 84 tri cab genny is now operational, whew. That said it will not shut off at the genny but will shut off at the remote over the galley. I suspect broken wire or bad switch. Will post when found.

Oh by the way the Onan 6.5 H carbie is a sxxxxofa bxxxx to get off. Seems they adapted a walbro downdraft carb and had to make a 1/2 inch adapter plate. The bolts are darn near impossible to get to , but with patience can be done. I wonder why they changed from side draft to this one.

:evil:
Larry Eddington
1984 F-36 Tri Cabin "The Phoenix II"
1978 F-28 "The Phoenix"
Fish Master 2350 Bay Boat
9.5' Dink
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