Carburetor diferance

[shot560]

I was wondering how much difference there is in carburetors for a 221, 263 and a 291? And if so what are they. Thanks

 

[the tractor vet]

Well they all LOOK the same on the outside . Inside Jetting and venture i do not have the size difference setting inft of me so i am not going to say .

 

[shot560]

Ok thanks. What I would like to do is put a 291 in the 460. since the air intake on the carb for the 291 faces the other direction I thought maybe I could have the 221 carb rebuilt to match the 291 specs.

 

[the tractor vet]

OH I see , Well let me enlighten you , Why stop at a 291 carb ?? When i had my 460 ( hated that tractor ) in the quest for more pony power and being a little Looney toons i replaced the venture with one out of and 806 and that is 1 1/8 bore now as for jetting here is where it gets tricky , the jets they use were DRIVE IN's and they can be a bear to get out and once out you can not just stuff it back it . It will not stay. Now when i did this the 460 was not that old of a tractor as i did this back in 1970 . My 460 was a 58 with a S/N of 571 so it was the 70th off the line . Back then i had five I H dealers all with in and hour drive in any direction and getting pieces and parts was no problem with most time what i needed was on the shelf so to speak . Then ya add in my expertise on working on carbs and tweaking them since 1963 with the 806 venture and i think it was a # 56 jet that i used and i could wean it with the load screw i had plenty of air and i could adjust for a good mixture and burn . Also i did a little trick work in the dist. a little valve set playing and it ran ok when it ran . Just after i got the tractor we put it to work plowing with the same 4 bottom plow i was pulling with my 450 Diesel and a 460 will NOT hold a candle to a 450 i don't care what the Nebraska test books say . While plowing the right inside axle bearing took a lunch break and put a lot of fine grinding into the rear end , We did the repair in the field in the furrow with the aid of a back hoe . Washed it out best we could with diesel and gas lots of blow drying , new Hy tran and filters and went back to plowing , finished that field and then on to the next farm after a road trip to it about seven miles and started in there only to have a pin shear on the fast hitch and that caused the tractor to stand straight up in the air luckly i did not go over backwards , fixed that problem and the next problem started as some of the filings made there way into the pressure regulator valve and would not allow the flow to go thru and it would just plum kill the tractor dead in her tracks . The hyd. filter on mine was the old style dual donuts inside the wire steel basket i replaced them somany times that i used up three cases of DONUTs went thru 55 gallon of Hy Tran , had the deck off that tractor to clean the rear end five times even placed Cow magnets in her belly and filter housing . She may un fine for a month and you just started to think you had won the battle when a sneek attach would come so fast and plum kill the engine in 25 feet . Happened twice at two different tractor pulls , vary embarrassing one min. your screaming down the track running wide open by passing the gov and all of a sudden she would die dead in her tracks and have the sled come up and hit you and have to be pulled off the track . Did i mention that i hated that tractor.

 

[shot560]

Ok thanks for the info