Three piece mold for sparkplug boots

[Brian Rupnow]

At some point over the last ten years, on one of my small engine forums, someone had posted plans for a three piece mold to cast your own sparkplug boots from silicone. I'd like to have a closer look at that post now, but I can't find it. Does anybody have a link to that post?---Brian

 

[Ghosty]

Brian,
I remember that, he made black, white and clear boots, I will have a look around and see if I can find it
Cheers
Andrew

 

[Ghosty]

Brian,
Found one at https://www.homemodelenginemachinist.com/threads/spark-plug-boots.32035/
I will have a look at other sites, there may be more
Cheers
Andrew

 

[Brian Rupnow]

Thanks Andrew---That's not the thread I was thinking of, but it shows everything I would have to know to create my own molds.----Brian

 

[Ghosty]

Thanks Andrew---That's not the thread I was thinking of, but it shows everything I would have to know to create my own molds.----Brian

Brian,
That is not the one I was thinking about either, just the first I found, I think the one I was thinking about is on another site.
Cheers
Andrew

 

[GailInNM]

I did this thread about 3 years ago.
https://www.homemodelenginemachinist.com/threads/ignition-boot-molding.14539/

Gail

 

[Brian Rupnow]

Yes Gail, that is the post I remembered.---Thank you so much for putting that up.----Brian

 

[Vietti]

Seems to me someone posted a way to use rubber automotive vacuum hose fittings (Dorman?) to make boots on some forum in the recent past.

 

[Sparky_SC]

Seems to me someone posted a way to use rubber automotive vacuum hose fittings (Dorman?) to make boots on some forum in the recent past.

Yes, for the 1/4 size spark plugs. Quick, easy and cheap.

 

[dsage]

Dorman #47410 soft vacuum elbow is what I use on all my engines with 1/4-32 plugs.
Used to be available at almost every car parts supplier. But last time I checked they had to order them because the cars they used to be used on are all in the scrap pile by now.
Pretty cheap, nice looking and easy to use.
I believe the were recommended in one of Jerry Howells plans.