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Allis Chalmers D21 questions: Solved

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55allis View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 55allis Quote  Post ReplyReply Direct Link To This Post Topic: Allis Chalmers D21 questions: Solved
    Posted: 01 Oct 2022 at 11:58pm
Hi a’ll,
I’m working on a D21 that has been setting for about 15 years in a machine shed with injection pump off the whole time.
The owner had tried to “fix” it himself which by the way failed but luckily had another parts pump, so I dropped off the two pumps in complete pieces at my local diesel shop so he rebuilt the best one with the best pieces.
So now with the problem, I think the engine got turned a little bit with the pump off and so screwed up the timing so now I’m asking if anyone with experience could explain how to get it right.
My brother and I tried to start it and we only got smoke, with a drip of starting fluid it would run for a second.

Thanks

Edited by 55allis - 05 Oct 2022 at 11:56pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 02 Oct 2022 at 6:30am
That sounds like you are 180 degrees off. So, the injection pump drive shaft must have been removed from the engine ??? Because the drive shaft technically only fits into the pump ONE WAY.
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55allis View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 55allis Quote  Post ReplyReply Direct Link To This Post Posted: 03 Oct 2022 at 4:13pm
Yes the drive shaft was taken out but I personally made sure it was lined up, the diesel shop made sure I knew.
I’m thinking because the original pump pretty much blew up it spun and I’m 180 degrees off after you mention that, it puts the puzzle together...
I also think the owner ran bio diesel in it right before it sat.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 03 Oct 2022 at 10:36pm
34 degrees BTDC.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 55allis Quote  Post ReplyReply Direct Link To This Post Posted: 04 Oct 2022 at 1:51pm
Thanks DrAllis
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Post Options Post Options   Thanks (0) Thanks(0)   Quote injpumpEd Quote  Post ReplyReply Direct Link To This Post Posted: 04 Oct 2022 at 2:54pm
These gear/shaft assemblies are known to slip and then gaul in place when a DC pump seizes up. It is still usable, but the dot on the gear(if even has one) and the slit in center of shaft are no longer in proper orientation. It really does not matter though. With #1 injector out, and a plug stuck in hole, or friends finger, turn engine cw viewed from front until plug or finger blows out. Now you know you're on #1 compression stroke. Turn engine a little further until the 34* mark lines up. At this point is when the marks inside the pump need to line up, no matter where the pump gear dots go. They eventually did away with pump gear dots thankfully lol! Good luck!
210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 55allis Quote  Post ReplyReply Direct Link To This Post Posted: 05 Oct 2022 at 2:34pm
Thanks to all of you guys, it runs like a good Allis should!!!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 55allis Quote  Post ReplyReply Direct Link To This Post Posted: 05 Oct 2022 at 2:39pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote darrel in ND Quote  Post ReplyReply Direct Link To This Post Posted: 05 Oct 2022 at 3:06pm
That's awesome
Darrel
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Post Options Post Options   Thanks (0) Thanks(0)   Quote injpumpEd Quote  Post ReplyReply Direct Link To This Post Posted: 06 Oct 2022 at 7:16am
So, what was actually wrong? Others will surely benefit from your experience. 
210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 55allis Quote  Post ReplyReply Direct Link To This Post Posted: 06 Oct 2022 at 7:35am
Originally posted by injpumpEd injpumpEd wrote:

So, what was actually wrong? Others will surely benefit from your experience. 


It was 180 degrees off...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Calvin Schmidt Quote  Post ReplyReply Direct Link To This Post Posted: 07 Oct 2022 at 7:47pm
We have a local injection shop who rebuilds a lot of pumps from IH tractors. I know of several AC pumps that he has sent back out 180 degrees. IH is on the other side of the engine. 
Nothing is impossible if it is properly financed
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 55allis Quote  Post ReplyReply Direct Link To This Post Posted: 08 Oct 2022 at 6:10pm
I think it was my fault because I didn’t see the little timing dots on the gears, my brother found them while I was cranking the engine over...
I’m thinking about disking with it with my Dad’s older John Deere 20 foot disk..
But I don’t want to hurt anything on it so what’s other peoples opinion? Does anyone think it would hurt it?
1955 AC WD45 diesel with D262 repower, 1949 AC WD45
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AC720Man Quote  Post ReplyReply Direct Link To This Post Posted: 08 Oct 2022 at 7:16pm
20ft leveling disk? My XT handles our 20ft AC disk with no problem. Should be a walk in the park for a D21 if it’s a leveling disk.
1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 55allis Quote  Post ReplyReply Direct Link To This Post Posted: 08 Oct 2022 at 9:15pm
Hmm, I’m not sure what it’s considered because it’s not the lightest but it’s not heaviest.
I know my Dads John Deere 4320 will pull it about right....
1955 AC WD45 diesel with D262 repower, 1949 AC WD45
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AC720Man Quote  Post ReplyReply Direct Link To This Post Posted: 08 Oct 2022 at 9:40pm
If the gangs are shaped like this >:< then it’s a leveling disk. If it’s like this \ : / then it’s an offset or cut disk. If it’s 20’, it would most likely have 4 gang wings. Look up a AC2000 disk, it is a leveling disk.
1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 55allis Quote  Post ReplyReply Direct Link To This Post Posted: 08 Oct 2022 at 10:53pm
Aha that makes sense, guess I never heard it put that way LOL!!
It would be a leveling disk...
1955 AC WD45 diesel with D262 repower, 1949 AC WD45
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 55allis Quote  Post ReplyReply Direct Link To This Post Posted: 07 Apr 2023 at 10:32pm
Well we hooked it on to a 25 ft John Deere field cultivator and it pulled okay!!
We only used it because it was the only tractor available at the time to bring up sticks…
1955 AC WD45 diesel with D262 repower, 1949 AC WD45
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 55allis Quote  Post ReplyReply Direct Link To This Post Posted: 07 Apr 2023 at 10:53pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AC720Man Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2023 at 7:21pm
Nice looking D21. So, is it now your tractor? Was it for sale?
1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 55allis Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2023 at 7:28pm
Originally posted by AC720Man AC720Man wrote:

Nice looking D21. So, is it now your tractor? Was it for sale?

Yes, my Dad and my older brother decided to help too.
It wasn’t listed anywhere but my Dad bought the farm it and the rest of the tractors was/are on and we decided we couldn’t see them go so the owner ( my cousin) said he’d sell everything on the farm to us if we wanted them.
1955 AC WD45 diesel with D262 repower, 1949 AC WD45
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AC720Man Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2023 at 8:55pm
That’s great, a good one to have in the shed. Curious, you said it did ok. Not enough power or spin out?
1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 55allis Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2023 at 9:51pm
Well the fuel tank needs cleaned really good because it has loose rust that keeps plugging up the sentiment bowl holes…
It would plug up and die…
1955 AC WD45 diesel with D262 repower, 1949 AC WD45
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Post Options Post Options   Thanks (0) Thanks(0)   Quote EPALLIS Quote  Post ReplyReply Direct Link To This Post Posted: 09 Apr 2023 at 12:51am
Good looking ride.  Thanks for saving another A-C and bringing him back to life!!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 55allis Quote  Post ReplyReply Direct Link To This Post Posted: 09 Apr 2023 at 7:32pm
I don’t think it would have gone to a buyer that wasn’t going to take care of it…
My cousin is a purebred Allis guy, he grew up on Allis and he still loves them, only reason he never fix these up is he’s 82 years old…
1955 AC WD45 diesel with D262 repower, 1949 AC WD45
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AC720Man Quote  Post ReplyReply Direct Link To This Post Posted: 09 Apr 2023 at 7:55pm
In that case, I’m sure he is grinning ear to ear. Your family is lucky to be in that situation, keeping it in the family. And a nice D21, wow, buy some lottery tickets!,
1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 55allis Quote  Post ReplyReply Direct Link To This Post Posted: 09 Apr 2023 at 8:11pm
Yes, he’s grinning ear to ear!!!
None of his kids/grandkids have an interest in these old tractors so he was happy that someone in the family has the orange blood…
That’s me driving the 21 in the picture above…
1955 AC WD45 diesel with D262 repower, 1949 AC WD45
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AC720Man Quote  Post ReplyReply Direct Link To This Post Posted: 09 Apr 2023 at 8:22pm
What other AC’s did your family buy from him?
1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 55allis Quote  Post ReplyReply Direct Link To This Post Posted: 09 Apr 2023 at 11:05pm
It’s quite a list but I can list what I remember…
1957 Wd45 with factory power steering, wd with a 33 picker, 1934 wc,2 1935 wc’s, 3 other parts wc’s, 1948? Wd (bad rear end he thought), parts wd, a 770 4 row planter, a snap coupler 4 row planter, and 4 18” plow.
That’s everything I can remember…
That was as a package deal but before that decision I got a 45 with a d19D repower and a ‘49 wd for myself…
1955 AC WD45 diesel with D262 repower, 1949 AC WD45
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