190 xt gas?
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=210640
Printed Date: 07 Apr 2026 at 7:04am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 190 xt gas?
Posted By: dr p
Subject: 190 xt gas?
Date Posted: 05 Apr 2026 at 7:31am
| Old friend from the dirty jersey called me yesterday. An estate near him is cleaning up and has a 190xt gas they want gone. ( too newfangled for me) did they make a lot of them with a gas engine? Got to be the most powerful tractor i have ever heard that is gas? |
Replies:
Posted By: DrAllis
Date Posted: 05 Apr 2026 at 7:50am
| 190XT gas was 89 PTO HP. Deere 4020 and IH 806 gassers were in the 93 to 95 HP range. |
Posted By: DougG
Date Posted: 05 Apr 2026 at 8:24am
| There ok- gotta get used to the combine governor on them |
Posted By: dr p
Date Posted: 06 Apr 2026 at 5:16am
| So lets say something for reasons that don't make any sense wanted to try and start this tractor. It is under cover but hasn't run for years. What would you do? I am thinking 1. Change the oil 2. Drain the gas 3. Rebuild the carburetor 4. Change the plugs. Anything else? |
Posted By: IBWD MIke
Date Posted: 06 Apr 2026 at 5:24am
| Points will need filing. |
Posted By: DrAllis
Date Posted: 06 Apr 2026 at 5:55am
| If it was me, I'm cheap. I don't know anything about the tractor. Loosen the oil drain plug to the last thread and let out a couple of ounces, looking for antifreeze. If none...screw the plug back in, the oil is OK to start it. If antifreeze is there keep draining until you get nothing but oil and then tighten the plug. Hang a gas jug with a rubber hose up high and connect to the carburetor inlet to gravity feed it, bypassing the fuel pump. Crank the engine while someone holds the coil wire close to the cylinder head and see if there is good spark or not. Got spark?? try and start the engine.No spark?? new points or whatever it takes to get spark. You'll need a good battery I'm sure. |
Posted By: DanielW
Date Posted: 06 Apr 2026 at 7:06am
| I love my 180 gasser, which had the same engine as the 190 gasser (non XT), and a very similar engine to that in the XT. A farmer near our Northern farm has a 190 gasser (non XT) and it's sure a sweet-running unit. With the price of diesel being so much higher than gas these days, I'd be happy to find another 180/190 gasser. If you're using one on a really heavy load like primary tillage, it certainly sucks back the fuel and is still perhaps a little more costly to run than a diesel. But if you're using one for lighter work (mowing, baling, etc.), I find the fuel use doesn't vary too much from a similar-sized diesel. Couple that with how simple and smooth those engines run, and they make for superb tractors. |
Posted By: DrAllis
Date Posted: 06 Apr 2026 at 7:32am
| 8.0 GPH for the XT gas @ 89 HP. 5.7 GPH for the XT diesel A 93 HP. Probably not much savings on the diesel at todays prices. |
Posted By: MadCow
Date Posted: 06 Apr 2026 at 9:14am
| From the very little I've run the diesel next to the gas. The diesel is much louder and diesel sounding. Running it all day would drive me nuts. Gas is a bit quieter and not so rumbly smoother, I have run it for at least half a day and haven't gone crazy. |
Posted By: Les Kerf
Date Posted: 06 Apr 2026 at 9:14am
Yup. I use a portable outboard motor gas tank with the little rubber squeeze priming bulb for starting anything old that has a questionable fuel system. I do use 2-stroke chainsaw mix as I believe it may help with initial lubrication of the top end, and I am confident that it does no harm.
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DrAllis wrote:Posted By: Lars(wi)
Date Posted: 06 Apr 2026 at 1:24pm
|
If I’m not mistaken, IH did have an 856 gasoline. ------------- I tried to follow the science, but it was not there. I then followed the money, and that’s where I found the science. |
Posted By: TramwayGuy
Date Posted: 06 Apr 2026 at 1:47pm
| Oliver 1850 and 1855 gas were 92 HP. Both 310 cubic inch engines. Almost 8 GPH at full load. |
Posted By: dr p
Date Posted: 06 Apr 2026 at 6:47pm
| Going to go down next week and give it a try. Also found this cool antique wooden allis thing a mo bod. Will try and get a ten year old to teach me how to post pictures |
Posted By: IBWD MIke
Date Posted: 07 Apr 2026 at 6:44am
Yes they did. MM had the G-950 gas with 426 CI and propane models with a 504. Moline Dan on YouTube has a G950 gas with .030 (I think) over jugs from a 504. That's about 525 CI of gas loving engine! Glad I'm not buying the fuel for that!
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