The timer discussion reminded me of this, so I thought I'd mention it in case anybody is unaware of it. It hadn't occurred to me until John Regan warned me about it.
High voltage can jump across a small gap anywhere, not just in a spark plug. Keep those plug wires away from low voltage wires, especially the one from the magneto. I believe ¼" is enough distance between wires, but I try to keep my plug wires at least ½" away from each other and from low voltage wires.
I suspect my failure to do so may be the reason I can no longer start on MAG.
Wiring warning: Keep 'em apart
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Steve Jelf
Topic author - Posts: 7237
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Wiring warning: Keep 'em apart
The inevitable often happens.
1915 Runabout
1923 Touring
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1923 Touring
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Oldav8tor
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Re: Wiring warning: Keep 'em apart
John Regan pointed the same thing out to me, as possible explanation for why the diode in my "Hot Shot" charger failed. Regardless, it makes sense to keep high voltage wires away from others just to be safe.
Steve, have you checked the AC voltage your mag puts out with an analog meter? That might tell you part of the story.
Steve, have you checked the AC voltage your mag puts out with an analog meter? That might tell you part of the story.
1917 Touring
1946 Aeronca Champ
1952 Willys M38a1 Jeep (sold 2023)
1953 Ford Jubilee Tractor
1946 Aeronca Champ
1952 Willys M38a1 Jeep (sold 2023)
1953 Ford Jubilee Tractor
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Steve Jelf
Topic author - Posts: 7237
- Joined: Fri Jan 04, 2019 9:37 pm
- First Name: Steve
- Last Name: Jelf
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- Board Member Since: 2007
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Re: Wiring warning: Keep 'em apart
No, I haven't checked yet. The car runs OK on MAG when I switch over from BAT, but the car won't start on MAG even when it's warmed up, so I'm guessing the magnets have been discharged at least a little. I'll find out for sure when I test.
The inevitable often happens.
1915 Runabout
1923 Touring
1915 Runabout
1923 Touring
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Moxie26
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Re: Wiring warning: Keep 'em apart
Won't start on magneto?... Maybe your coils have to be checked by a qualified person.