Spark plugs

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evildrome
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Spark plugs

Post by evildrome » Sun Apr 03, 2005 12:37 am

Hi All,

Does anyone have a cheap source of CM6 or similar small spark plugs?

Thanks,

Wilson.

Mark
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re: Spark plugs

Post by Mark » Sun Apr 03, 2005 1:44 pm

http://www.ngk.com/results_cross.asp?pid=CM-6
http://www.ngk.com/more_info.asp?AAIA=&pid=3291
Looks like they ship international orders. I don't know how much it would cost you for shipping though.
Mark
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re: Spark plugs

Post by Mark » Sun Apr 03, 2005 2:31 pm

I have a Champion Y-82 plug too, they are the same size as the CM-6 if you can come by those where you are, maybe they would be cheaper. They are the ones on the right in this first link.
There's also a 1/2 inch pipe thread spark plug, (Autolite 3095) maybe Mikey would like a few of those. ; ) (Second link) To be honest, I think I will get some myself. It's nice that the CM-6 screws into an 1/8 NPT female pipe thread and since I have the jumbo 3/4 NPT pipe thread plugs, I might as well have the inbetweener. Believe me, when you don't have to drill and tap a hole, it makes things laughably simple.
Mark
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re: Spark plugs

Post by Mark » Sun Apr 03, 2005 2:50 pm

Here's a link that makes the Autolite 3095 spark plug seem important. ha
You've got to love the simplicity of tinker toy assembly using plumbing pipe threaded parts, you just screw it whenever possible.
Mark
http://www.rtftechnologies.org/physics/fusion.htm
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re: Spark plugs

Post by Mark » Sun Apr 03, 2005 4:13 pm

I just noticed these coils which are kind of nice, being smaller than the car or motorcycle coils.
http://www.mjnfabrication.com/pages/948293/index.htm
But then these COPS are pretty small too, I'd like to have a really small ignition system that could run for years without failure, my Model T buzz coil is still going strong but it is a 5 X 3 X 2 inch brick. You will need electronics to fire the coil on plugs or get/make a make and break device.
Mark
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re: Spark plugs

Post by Mark » Sun Apr 03, 2005 4:46 pm

This looks interesting. Go to gallery, then Model Engine related items. Then click on Steve Piece spark plug for a homemade design.
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re: Spark plugs

Post by Mark » Sun Apr 03, 2005 4:58 pm

Here's a visually entertaining spark plug, kind of a lighthouse effect, which as stated would be entertaining at night.
Mark
http://www.steamengine.com.au/ic/histor ... tensifier/
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re: Spark plugs

Post by Mark » Sun Apr 03, 2005 5:22 pm

Just a funny picture to me.
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re: Spark plugs

Post by Mark » Sun Apr 03, 2005 7:51 pm

Last edited by Mark on Sun Apr 03, 2005 8:21 pm, edited 1 time in total.
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re: Spark plugs

Post by Mark » Sun Apr 03, 2005 8:03 pm

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re: Spark plugs

Post by Mark » Sun Apr 03, 2005 8:19 pm

Some pink ceramic insulators made in the distant past used beryllium oxide, so I don't know about any old spark plugs but I wouldn't grind the ceramic or place them in the hottest part of your pulsejet just to be on the safe side.
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re: Spark plugs

Post by Mark » Tue Apr 05, 2005 5:38 pm

I just called the NAPA auto parts store a few minutes ago, they will have the Autolite 3095 for me tomorrow, I ordered 3. They are $3.40 each, not too bad for tinker toy pipe fitting compatibility. Also, I'm going to get a Champion 14 or 18, a 3/4 inch pipe thread like my long reach ones, and they are very cheap too.
While I can screw a CM-6 into my snorkeler tank in the 1/8th inch female pipe fittings, it seems kind of tiny and I am sure with the Autolite 1/2 inch pipe thread, I can screw one in the top of my snorkeler tank, the size of plug more matched to the tank and I will get a larger spark from the gap. Too, if I fill the tank with methanol at the bottom, my CM-6 gets soaked and doesn't like to fire. Now if I could find a 1 inch plug, I could install 6 spark plugs in all the fittings located around /on my snorkeler tank. I don't what for other than to be funny.
Mark
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