Champion x plugs

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Model T Ford Forum: Forum 2014: Champion x plugs
Top of pagePrevious messageNext messageBottom of page Link to this message  By dennis delano on Wednesday, October 01, 2014 - 04:12 pm:

On another note, what is the best gap for champion x plugs in my '26 touring? The literature says .25, but I have heard .30 is better, just curious!


Top of pagePrevious messageNext messageBottom of page Link to this message  By JohnCodman on Wednesday, October 01, 2014 - 04:54 pm:

Try ,030. The wider the gap the better. As long as the ignition system can supply enough voltage to jump the gap, go as wide as you can. If you get a misfire, close it up until you don't.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Wayne Sheldon, Grass Valley, CA on Thursday, October 02, 2014 - 12:41 am:

Wider gap runs cleaner and tends to run smoother with a bit more power. Up to a point. Wider gap also tends to be tough on coils and points regardless of whether it is stock T or any sort of distributor on any make of car. So it is a bit of a balancing act. Many people have found that .025 is too close. A lot of people say .030 or even .032. I tend to favor .028 as a good trade-off for stock T ignition. It depends a bit on the specific plugs. There are so many different Champion X plugs
Interesting to note here. After-market "high tension" magnetos such as a Bosch DU4 require a smaller gap, .018 is recommended in original literature. The low gap is required at lower rpm for starting. They throw much hotter sparks at higher speeds so fouling plugs is not a problem.
Drive carefully, and enjoy, W2


Top of pagePrevious messageNext messageBottom of page Link to this message  By dennis delano on Thursday, October 02, 2014 - 01:21 am:

Thank's, I just installed a set last week for the first time and gapped them at .25, it seemed just a hair sluggish, so I will try the .30 and see what happens, thank's again!


Top of pagePrevious messageNext messageBottom of page Link to this message  By Royce in Georgetown TX on Thursday, October 02, 2014 - 08:09 am:

Champion recommended .025". It works best following Champion's recommendation. Take a look at the wax paper inside each box.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mike Zahorik on Thursday, October 02, 2014 - 11:07 am:

A few years ago I purchased a set of NEW Champion X spark plugs. I really like them and have taken them apart a few times to better clean them. When I run my Kingston L-4, any plug in my engine will soot up quickly. Anyway, I'm concerned about the copper gasket between the porcelain and the plug base. Where I can obtain some replacements for these copper gaskets? Thanks
Mike


Top of pagePrevious messageNext messageBottom of page Link to this message  By Roger Karlsson, southern Sweden on Thursday, October 02, 2014 - 12:10 pm:

Mike, see this recent thread - Steve Jelf gives a source for the copper gaskets there.
http://www.mtfca.com/discus/messages/411944/482606.html?1412099248

1/2" ID, 3/4" OD.
http://www.gen-aircraft-hardware.com/


Top of pagePrevious messageNext messageBottom of page Link to this message  By dennis delano on Thursday, October 02, 2014 - 06:59 pm:

I bought 4 new ones but they did not come with copper gaskets, I don't see how the copper would fit because half of the thread is still showing on mine when they are tightened all the way!


Top of pagePrevious messageNext messageBottom of page Link to this message  By Donnie Brown North Central Arkansas on Thursday, October 02, 2014 - 07:09 pm:

Dennis, The copper caskets Mike is talking about, go inside the plug. They are the seal between the porcelain, and the spark plug shell.


Top of pagePrevious messageNext messageBottom of page Link to this message  By dennis delano on Saturday, October 04, 2014 - 09:54 pm:

Oh, ok, thank's, mine looked so pretty when I got them that I didn't dare take them apart to look!!!! LOL


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