Re: How to make old gas tractors run well

Posted by the tractor vet on April 05, 2008 at 17:19:27 from (76.212.238.60):

In Reply to: Re: How to make old gas tractors run well posted by Brian Jasper co. Ia on April 05, 2008 at 08:52:05:

Well Boys that is what was the grade of fuel back then And some Coops offered farm gas and it was 90-93. Over this way there are still a bunch of older gas tractors that are used everyday on dairy farms and i have seen many problems with the 87 octain use in them . I even went as far as having the gas that was hauled out to one farm tested in a lab and what i learned form them as to what happens during combustion. First off it BURNS WAY HOTTER it makes oxygen from the additive that is in it to make the EPA happy . this is fine for a car or light truck NOT a working Ind. engine . I tryed everything that i know to make these engines run correctly and nothing worked . TILL we switches gas and went to the 93 . Up till the hightest got to be 20-30 a gallon higher in price i ran it everything . When i was haulen in tractors and equipment that i was buyiing out in Ind. and Ill. i ran and 88 F350 4X4 dually pullen a 28 foot goose neck empty weight on truck and trailer was 15000 it had a 460 and a 5 speed never towed loaded in 5th
Running under load the engine was twisten 32-3400 i ran hightest in it as the 87 would ping and fuel milage went down Fully loaded she would get between 10-12 mpg and i still have my records for that truck and show ya everyone of the 287000 miles and every drop of gas . I farmed with a ratty old 706 gas with a 291 and ran hightest in Ran that tractor till there was nothing left but parts. NEVER a problem with the engine or plugs A lot of my good friend run 706 gassers and they all run the 93 . Now if ya don't believe me then look in the owners manual for a 706 gas built from 1963 till 1967 and THE BOOK TELLS YA NOTING LESS THEN 93 octain gas is to be used in that tractor. Now the 50 seires OIL ALL OVER was built in that same time frame and it also had about the same requierments for fuel. Now here you guys that just play with tractors or farm are tryen to tell me that this is not so . Well let me put it to you this way and i am at the stag in life i don't care what i say or how i say it When you have built as many engines as i have gas or diesel in the 40 some years that i have twisted wrenches raced cars and pulled tractors fineuned many engines that either ran down the drag strips around here and either walked away with the money or all the guys that i tuned there tractors that won . Then you can tell me how things work. Just how many of you can trick a old dist.or tweek a carb to gain power with out over fueling or built a hot diesel . How many of you have done total machine work on engines balanced a rotating assy. CC heads . Taken parts out of a dumpster and built a winning pulling tractor with someone junk . And like i said try it it's only money ya can't take it with ya . ANd if the friggen hightes was not so high i would be running it in the wife Durango as when we bought it that is what we started it off on and got just shy of 18.4 MPG on a trip on a 03 Durango with the 360 ( not into this metric B/S ) Always thought that it should do better And was talken to the service manager and he told me that oh don't run the 93 ok will try the 87 , Now the best it gets is 14.7 on a trip . Nothing changed nothing reset. Old 706 on the plow a set of 4x16's running 1st high in corn ground 8-10 inches deep worken the snot out of it 4.5-5 gallon and hour . 806 D same plow same fields same depth same tires same gear 5-5.5 gph And at todays prices it's cheaper to RUN THE GASSERS. Yes i lashed at ya but like i said i tell it like it is. You set that gas tractor correctly and run the correct gas as long as it is not pumpen four qt's of oil a day out the stack she will run better run cooler and make more ponys and use less fuel as ya get a longer cooler burn off the 93 and this come from a Lab in Columbus Ohio.

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