Topic: Johnson magneto – Antique Outboard Motor Club,Inc

This topic has 8 replies, 7 voices, and was last updated 4 years ago by crosbyman.

Viewing 9 posts - 1 through 9 (of 9 total)

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April 19, 2020 at 9:02 am #200511
Steve Martin
Participant
US Member
Does anyone know of a source for the phenolic spark plug nuts on the bottom of Johnson magnetos?
- This topic was modified 4 years, 1 month ago by Steve Martin.
April 20, 2020 at 10:23 am #200581
squierka39
Participant
US Member
As far as I know there is no source for them. Possibly someone has some old stock or used ones off a parts motor. They are not available new. I did see a guy on FB make his own from Delrin, but he wasn’t selling them.
Try a wanted ad on the classified section.
April 20, 2020 at 10:49 am #200586
Steve Martin
Participant
US Member
Thanks. That’s pretty much what I guessed. Probably a swap meet item when we get back to having them.
April 20, 2020 at 10:50 am #200587
Mumbles
Participant
If you have access to a lathe, it’s pretty easy to spin them up out of Acetal (Delrin).
April 20, 2020 at 4:34 pm #200612
wbeaton
Participant
Canada Member - 2 Years
The phenolic compression fittings are often broken during removal. You have to be extremely careful. I find a heat gun helps. Anyway, my point is that you will probably have to buy an entire mag plate to get those fittings.

Wayne
Upper Canada Chapter

uccaomci.com
April 20, 2020 at 8:40 pm #200629
squierka39
Participant
US Member
I got lucky I guess. These just screwed right out. The rubber parts were stuck to it though.
April 21, 2020 at 7:29 am #200658
need2fish
Participant
A couple of long-shot alternatives:
– Carve phenolic board with a router and/or a milling maching. Metal tools really work well on the board.
– Find someone with a 3-d printer. The printers can produce machinable products.
April 21, 2020 at 7:52 am #200660
oldemtr
Participant
Maybe something like these little strain reliefs could work – If you could match the threads – These are 1/8″ NPT , I think:

https://www.amazon.com/Connector-Lighting-PRUNLLA-Aluminum-Threaded/dp/B07BJY9822?ref_=fsclp_pl_dp_9&th=1

Hmm – That’s weird – Supposed to be a link to Amazon, NOT a photo – Go figure …….
- This reply was modified 4 years ago by oldemtr.
April 21, 2020 at 9:36 am #200671
crosbyman
Participant
Canada Member - 2 Years
they make special silicone for sealing stove pipes (heat resistant) or special silicone for high voltages conditions on older TV flyback transformers

could you not just had a dab to glue the fittings in place without threading them in ?

or better yet glue the wires in place ..period the Tv silicon is great for insulating 25KV to prevent arcing

Joining AOMCI has priviledges 🙂
- This reply was modified 4 years ago by crosbyman.
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