Re: Mike's 53 Clipper
Posted by Packard Don On 2017/11/3 20:21:45
As I understand it, the .028 gap is generally for positive ground where the spark has to jump from a colder surface which takes more energy but on negative ground it has to jump from a hotter surface which is easier so a wider gap is needed. When converting from positive to negative ground, this change is often overlooked but I'm not an engineer so maybe one can explain it in better detail.
By the way, below from my 1954 Patrician is the type of plugs I generally use. They are Fire Injector 14 plugs which I believe I bought from J.C. Whitney decades ago although Bosch makes similar plugs today. Not sure if J.C. Whitney still carries these but when I added them I had to tune down the idle speed and mileage improved as a result.
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By the way, below from my 1954 Patrician is the type of plugs I generally use. They are Fire Injector 14 plugs which I believe I bought from J.C. Whitney decades ago although Bosch makes similar plugs today. Not sure if J.C. Whitney still carries these but when I added them I had to tune down the idle speed and mileage improved as a result.
Attach file:
(230.30 KB)
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