Farm Equipment - D21 pump info

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D21 pump info

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=196680
Printed Date: 25 Sep 2024 at 1:22pm
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Topic: D21 pump info

Posted By: im4racin
Subject: D21 pump info
Date Posted: 15 Aug 2023 at 10:43pm

Dr, in the 210 sn thread you had inj pump info on the 210 and 220. Do you have pump info for D21 s1 and s2? Have a couple pumps and thought they may be D21 stuff.

Thanks

Replies:

Posted By: DrAllis
Date Posted: 16 Aug 2023 at 12:19am

D-21 pump tag would say DCGFC 629 xxxxx and have electric shut-off.

Posted By: injpumpEd
Date Posted: 16 Aug 2023 at 7:24am

While I'm not the Dr, I can answer a little.

The series 1 D21 pump would be DCGFC629-2AG 84-88cc @ 2200, 88-93cc @ 1200

The series 1 D21 converted DCGFC629-47AG 99-104cc @2200, 102-107 @ 1200

The factory series 2 D21 is DCGFC629-25AG. 102-104cc @ rated 2200, 105-114@1200

As stated, all very similar, non advance pumps with electric shut off solenoid.

The 25AG is the hottest set one of the 3. Not sure which one was on the neb test tractor. The 25AG has the strongest torque rise, though the hp @ rated speed would be nearly identical to the 47AG

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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!

Posted By: DrAllis
Date Posted: 16 Aug 2023 at 8:19am

I've got some old info that the 128 HP D21 had 468 ft lbs peak torque, while a 131 HP 5020 John Deere (531 cubes no turbo) only had 371 ft lbs peak torque. Which one would you rather pull a 7 bottom plow with ??????? !!!!

Posted By: im4racin
Date Posted: 16 Aug 2023 at 12:18pm

The pump we have has DCGFC 631-1 jn on it. Any listing for that one?

Posted By: injpumpEd
Date Posted: 16 Aug 2023 at 12:57pm

1JN is a 210 pump

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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!