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RockyBottomFarm 
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Joined: 16 Oct 2011
Location: Fall Creek WI
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 Topic: Allis B tire sizes
Posted: 16 Oct 2011 at 8:39am |
stock sizes are 9-24 or optional 10-24
I have two B's a 38 and newest 40
the 38 has 8-24 tires, they dig really hard and can spin them in any ground in 1st or 2nd gear, even plowing.
the 40 i just bought yesterday at an auction and has brand new 11.2-24, I plan on selling them and going with a stock size but not till after i drive it down the road and drop the plow in the groung with the bigger tires.
whats do you guys have, and how do you like them? I'd like to put stock size on the 38, because the 40 i will either fix up and sell or part out.
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jccleav
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Joined: 11 May 2011
Location: Indianola IA
Points: 211
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Posted: 16 Oct 2011 at 8:49am |
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Mine has 9.5-24 tires on it. I have enough traction to lift the front up. I do not have any fluid or weights.
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The joy is in the journey.
AC "B" and "WD" and "C"
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Dick L
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Joined: 12 Sep 2009
Location: Edon Ohio
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Posted: 16 Oct 2011 at 10:26am |
I have the 11-2's on two of my B's.
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RockyBottomFarm
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Posted: 16 Oct 2011 at 10:49am |
also anyone know anything about the stock wheels? both of my tractors have different wheels. which are origonal? are they both origonal? what size wheels do you guys have with your tire sizes?
the 38 has 7in wheels with square locks...........8-24
the 40 has 8in wheels with wedges..................11.2-24
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Ken in Texas
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Joined: 11 Sep 2009
Location: Henderson, TX
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Posted: 16 Oct 2011 at 11:23am |
Original mid to late prtoduction 38 rim locks look like this. The footed clamp fit behind and over the short angle tabs rivited to the bottom of the bead flange on very narrow rims. The ones used before this were special for the 37 & early 38s with the split rims. You can also tell a 38 wheel center from all others by looking at the valve stem notches. They are half round and not the usual V notches. The bolt holes are 3/4 also. Not 5/8
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Chalmersbob
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Location: Pennsylvania
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Posted: 16 Oct 2011 at 10:21pm |
The rims on the 38 are not original rims. They are basicaly an IH rim which was more readily available in some areas the the original rims. The early B had a 7" rim and 8" tire, later ones, about 1940 had the 8" rim and 9 inch tire and near the end of the 40's they went to a 9" rim and a 10" tire. I have had all three sizes of rims at one time or another.
Bob
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CTuckerNWIL
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Posted: 17 Oct 2011 at 5:52am |
If it was mine, I wouldn't think about going smaller than the 11.2's. The pre 1940 8.25-24 is basically the same tire as today's 11.2-24 http://www.millertire.com/FAQs.asp
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Ken in Texas
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Posted: 17 Oct 2011 at 7:17am |
The rim width you have to work with plays a important roll on what tire size fits. Slapping a set of 11-2s on a 7 inch wide B rim is not a good match.
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Kip-Utah
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Location: Southern Utah
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Posted: 17 Oct 2011 at 8:04am |
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11.2 is the modern equivalent of the B era 10x24. Look on the Miller Tire web site for a good tire size conversion chart.
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HANSEN'S OLD ORANGE IRON. Showing, Pulling, & Going!!
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CTuckerNWIL
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Posted: 17 Oct 2011 at 11:03am |
 Ken in Texas wrote:
The rim width you have to work with plays a important roll on what tire size fits. Slapping a set of 11-2s on a 7 inch wide B rim is not a good match.
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I don't understand why11.2's wouldn't fit fine on a 7 inch rim. It is the exact same tire as an 8.25 from pre 1940 and that was put on a 6 inch rim according to the chart.
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EPALLIS
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Posted: 18 Oct 2011 at 7:51pm |
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10X24 on my model B. I like them fine doing Woods Belly mower work. Perhaps plowing would make a difference. At any, I love the B. Keep her running fine. Going orange is going great!
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Chalmersbob
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Posted: 18 Oct 2011 at 9:10pm |
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the chart tells you that 11.2 should go on a 10" rim. You can't compare old tire sizes to today's tires. Todays tire are built entirely different. Bob
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CTuckerNWIL
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Posted: 18 Oct 2011 at 9:26pm |
Chalmersbob wrote:
the chart tells you that 11.2 should go on a 10" rim. You can't compare old tire sizes to today's tires. Todays tire are built entirely different. Bob |
Bob, have a conversation with somebody that worked the tire industry for many years. The only thing different between the old 8.25, the 10 and the 11.2 is the width of rim it was put on and the way it was measured. There is a difference in the shape and size of the bead but the tire is basically the same, just numbered different for a different rim. Talk to TedBuiskerN.IL. he is the in house expert and can tell you all about the tire sizes and changes.
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Chalmersbob
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Posted: 18 Oct 2011 at 9:37pm |
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If you read the side of a 11.2 tire it will tell you to use a 10" rim. If you put it on a 7" rim the tire will be round, not flat because the traction surface is much wider the a 8" or 9" tire. Bob
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CTuckerNWIL
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Posted: 19 Oct 2011 at 5:39am |
Chalmersbob wrote:
If you read the side of a 11.2 tire it will tell you to use a 10" rim. If you put it on a 7" rim the tire will be round, not flat because the traction surface is much wider the a 8" or 9" tire. Bob |
Look at the drawings in the Miller tire page. There is a drawing of the early tire and how it was measured. Look at the shape of that tire on a narrow rim. It is rounded. That's the way it was and that's the way it will be now if you put it on a narrow rim. I'm not saying it is the best thing to do for traction. I'm saying that's the way the early tires were. If you took an 8.25 tire and put it on a 10 inch rim, it would be flat like the 11.2 tire is on a 10 inch rim.
Edited by CTuckerNWIL - 19 Oct 2011 at 5:41am
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RockyBottomFarm
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Joined: 16 Oct 2011
Location: Fall Creek WI
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Posted: 19 Oct 2011 at 6:36am |
the 11.2 tires are on the 8in wheels, I switched the whole package, will have it out of the garage today, will put up a few pics this afternoon, hopefully one of it running the elevator to get corn into the crib as well!!!
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