Re: Re: Re: mcCormic deering 10-20

Posted by Bill Smith on April 05, 2003 at 13:28:30 from (63.147.130.94):

In Reply to: Re: Re: mcCormic deering 10-20 posted by brian on April 04, 2003 at 14:26:12:

O.K. I think I know a few things that will help ya. Your tractor probably original had some sort of canvass that clipped to radiator to act as radiator shutters. These were used to help tractor run at warmer temperature. If you are missing them, you might want to use a peice of card board in the same manner. You shouldn't need to if plowing on hot day, but for start up warm ups and colder weather you will need air flow restricted to radiator for tractor to run hot enough to burn kero. When burning kerosene, the procedure should go like this here. Turn on the gas valve and make sure there is gas and not kero in carb. Start tractor up. Cover the front of radiator so tractor will warm up faster. When tractor is entirely warmed up (what I call hot) then it is time to change fuels. Turn the gas valve off. Not sure if it requires a heat adjusting manifold. If so, adjust the manifold to the hot position. Open the valve for the kerosene tank. The jets in carb may also be set up for gas. If so, they will have to be changed to kero burning. This may require changing the jets if somebody put gas ones in. Tractor should run on the kero. If doing light work or operating in cooler weather, I would leave front of radiator covered. Maybe uncover it in hotter weather, or during heavy work. This will help keep tractor running hot. Maybe there is a mis-understanding here on warm up. You warmed the tractor up on gas. But don't take the meaning of warmed the wrong way. You got to warm it up to pretty much hot, to burn kero. Then when you shut the tractor down, you turn kerosene valve off, and turn gas valve on. Let the tractor run for a little bit to burn kero out of carb. If equiped with heat adjusting manifold, adjust to cooler setting. Uncover the radiator. Let the tractor cool down to about normal temperature for burning gas, and then shut the tractor off. Turn gas valve off. Never leave both fuel valves open at same time. Your fuels will blend together not only in fuel line, sediment bowl, and carb but also in the tanks if you do. You shouldn't have to blend some gas in the kero to get the tractor to burn it. If you do, something is wrong with the tractor. Spark does not have to be adjusted or changed to burn kero (Same as gas). O.K. here is something to think about. I know the later kero burning tractors had heat adjusting manifolds. These heated the intake air. Some people changed these out to a non-heat adjusting manifold (for gas burning) if they ever changed out the manifold in later years after no longer burning kero. Not sure if the 10-20 kero burners had this type of manifold. The intake air had to be heated to vaporize the kero. Also, I am not sure if there was gas burning and kero burning carb jets. If carb was ever rebuilt it might of got gas burning jets if they was available. I hope this gives you some help. Burning kero was kind of a pain in the rear. It was cheaper back then, and the trouble was probably justified. Not that way today. If I was you and got the thing to burn kero, I would just do it for demonstration purposes only and burn gas all the time. No real sense in burning the kero in todays world. Kero hasn't really been commonly burnt in these tractors probably sense the 50's.

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