Any one heard of a 8 commercial champion spark plug. Was the plug of the day in the 50's. All the parts houses subbed to the D-16. I had some disagrements with them so wrote to the champion spark plug company and they verified my claim the 8-com was slightly different than the D-16 in heat range but apparently IH had a lock on it so they didn't supply them to auto parts stores. Still have that letter some where in my old files. The D-15Y was the one that IH went to to replace it for normal service and D 18-Y for lighter service. I use the D-21 in a lot of the engines now that don't work hard for any length of time with good results.
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Today's Featured Article - New Hitches For Your Old Tractor - by Chris Pratt. For this article, we are going to make the irrational and unlikely assumption that you purchased an older tractor that is in tip top shape and needs no immediate repairs other than an oil change and a good bath. To the newcomer planning to restore the machine, this means you have everything you need for the moment (something to sit in the shop and just look at for awhile while you read the books). To the newcomer that wants to get out and use the machine for field work, you may have already hit a major roadblock. That is the dreaded "proprietary hitch". With the exception of the
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