[AJD] Champion Plugs - was Re: JD 70 running rough

[Edward Tabor]

A friend of mine has an Oliver 77 tractor that he uses for pulling, so 
it doesn't get worked hard or often.  The only plugs that he can use on 
it without having them foul are Champions, and he is anti Champion.  
Yes, he has tried Bosch, NGK, AC, Autolite, and some others, with the 
same thing.  I guess certain motors are fussy.

Ed

Bill Salisbury wrote:

>Oh yes, Champion plugs.  For years I have been experiencing some troubles with 18 mm Champion plugs, as they apply to antique outboard engines.  The most popular is the Champion D-9.  I have had new ones right out of the box that will not fire.  As I have run my supply down to nothing, I have been replacing them with NGK AB-6 and those seem to run flawlessly.
>
>I also have an aircraft with a Jacobs radial engine in it and have had only one problem with the Champion plugs in that engine.  I believe that the quality control of the aircraft plugs is a bit better than the inexpensive $2 plugs that you can buy for the tractors.  Just the same, the next time I change any plugs in that engine, I will most likely install Auburn plugs (used to be AC).
>
>Bill Salisbury
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