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77 problem


 
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8NHENRY
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Joined: 04 Jan 2014
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Location: NW Iowa

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PostPosted: Wed Jun 22, 2022 4:53 pm    Post subject: 77 problem Reply to specific post Reply with quote

So my 77 that I bought a few months back has a problem I need help with. It has only did this 4 times. Under wide open throttle, no real load just for a split second it acts like it looses ignition, then continues on.. An't thoughts? Thanks in advance.
 
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scootergmc
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PostPosted: Wed Jun 22, 2022 5:18 pm    Post subject: Re: 77 problem Reply to specific post Reply with quote


I'm assuming it's a gasser?
 
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8NHENRY
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PostPosted: Thu Jun 23, 2022 2:29 am    Post subject: Re: 77 problem Reply to specific post Reply with quote

scootergmc wrote:
(quoted from post at 03:18:46 06/23/22)
I'm assuming it's a gasser?
Yes it's a gasser.
 
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ss55
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PostPosted: Thu Jun 23, 2022 3:11 am    Post subject: Re: 77 problem Reply to specific post Reply with quote

Could the governor be hunting (galloping)?
 
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J.Wondergem
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PostPosted: Thu Jun 23, 2022 4:13 am    Post subject: Re: 77 problem Reply to specific post Reply with quote

Maybe a loose wire, or short. Check to see of the throttle linkage is hitting a wire when it's wide open.

This post was edited by J.Wondergem on 06/23/2022 at 05:15 am.

 
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scootergmc
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PostPosted: Thu Jun 23, 2022 8:13 am    Post subject: Re: 77 problem Reply to specific post Reply with quote


I agree. I would check with all the plug wires. There could be a short through the insulation due to vibration, etc. Had that happen on a car once. Couldn't find the miss until we turned off the lights and revved it to kingdom come.
 
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8NHENRY
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PostPosted: Thu Jun 23, 2022 2:10 pm    Post subject: Re: 77 problem Reply to specific post Reply with quote

Thanks for the advice. Heading out shortly to look around for shorts. The ol girl runs so nice and the she does that, scares the crap out of me. Mostly afraid it's just going to die.
 
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8NHENRY
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PostPosted: Sat Jun 25, 2022 8:53 pm    Post subject: Re: 77 problem Reply to specific post Reply with quote

Thanks for everyone's advice, the problem as far as I can tell is it was the points. I cleaned them and regapped them. Took it on a tractor ride today and she worked like a champ. Time will tell.
 
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gary66
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PostPosted: Sun Jun 26, 2022 5:57 am    Post subject: Re: 77 problem Reply to specific post Reply with quote

mine had an odd problem, it would blow the coil wire out of the cap but not the boot. Did it several times. I don't remember how I
caught it. I think I used some silicon to keep it on. It would just cut out.

Sounds like a connection issue of something, it will probably be obvious when you find it so if it's maybe this it probably
isn't.
 
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