Re: Carb

Posted by the tractor vet on February 05, 2009 at 06:04:46 from (76.212.225.98):

In Reply to: Carb posted by JG67 on February 04, 2009 at 19:02:22:

Well , first off is it plum wore out and are you having a issue with oil fouling ??? or is it fuel . Just who's plugs ya running . On setting the carb the first thing ya have to know is the carb. in good shape and is the float level set correctly . IF so then the main jet should be set 4-5 turns off the seat and left alone as one thing that dig into your wallet is a leaned out engine . Next is the engine timing set correctly ??? timing is set at full rated PTO RPM . The next thing to look at is the fuel that your trying to use . Are you running the cheapest gas ya can find ???: If so that is not going to cut it , you can get away with this on and old h-m-300-400 but not on a newer 4cylinder or 6 cylinder . First off you have no idea on how many times that engine had had the head milled down over the years to clean it up as back when they brought them engines out they had exhaust valve probelems wright off the start . They figured it out and this is why they brought out the LOW ASH oil for the gassers . And also the gas back then was not the gas of today . IF my memory serves on a 460-560 the minimum octane requirement is like 89-90 . In my area there are still a ton of old farmall gassers working everyday on dairy farms and i have been thru this over and over again . Ya want a old farmall gasser to run the way it is suppose to run then ya start off by a good MAJOR tune up setting the carb the way it is suppose to be set set the timing at what it is suppose to be set at with no more then +2 degrees set the valves dead on there propper set and here ya have to make sure that due to ware ya don't have what i call bridgeing between the valve stem and the rocker due to ware . Next ya run no oil other then Low Ash Run the minimum on octane on the gas but for best results set up to the good stuff . Myself i have run farmall gas tractors for thirty eight years and i think i have run into every quark that they could ever have . All of my closest friends all have Farmall gassers and every one of them is still doing what they were meant to do . On the spark plug issue throw away the champions and either go with a A/C in a C86 or the Auto lite or Motor craft and for some reason i forgot the Number this morning (CRS). If ya have to run a hot plug then your way past time for a rebuild.

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