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Re: Re: Cleaning spark plugs
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Posted by Brian G. NY on April 15, 2002 at 19:36:21 from (64.246.154.182):
In Reply to: Re: Cleaning spark plugs posted by JohnnyK on April 15, 2002 at 18:38:43:
That's easy to say.........unless you have some really old iron......then, you just don't go down to your friendly auto (or tractor) parts store and pick up a new set. I think sandblasting tends to round (read wear) off the electrodes. Cleaning with a stiff wire brush and a very thin file will remove most carbon buildup. I use a piece of piano wire (a large safety pin also works) to clean all the carbon down inside between the insulator and the plug body. We discovered in the early days of snowmobiling (before oil injection) that a plug not firing across the electrodes would sometimes be shorting out down inside between the insulator and the body of the plug. Using the stiff fine wire would clean out the carbon and get us going again. It helps to use carburetor cleaner whilst you're scraping with the wire as well. A good blast from the air compressor will finish the cleaning job very nicely. This is time consuming, but most old tractors have only 4 plugs and the JDs have only two.
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