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Help with a D-21
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Wendell,W.N.H. View Drop Down
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Joined: 28 Jul 2012
Location: Langdon,N.H.
Points: 28 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Wendell,W.N.H. Quote  Post ReplyReply Direct Link To This Post Topic: Help with a D-21
    Posted: 05 Dec 2023 at 12:27pm
I'm trying to put a rebuilt Stanadyne injection pump back on a 1966 D-21. With the engine timing set and the pump timing marks set and the small tang in pump seems to be ok, it"s lacking 3/16 of going together. Must be doing something wrong, but sure don't know what. Appreciate any help, thanks.
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 20479 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 05 Dec 2023 at 12:31pm
More info. You removed the pump and did NOT remove the pump drive shaft from the engine?? Yes or no. If yes, you must be one spline off on the pumps driveshaft. Timing to be 34 degrees BTDC.
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Wendell,W.N.H. View Drop Down
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Joined: 28 Jul 2012
Location: Langdon,N.H.
Points: 28 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Wendell,W.N.H. Quote  Post ReplyReply Direct Link To This Post Posted: 05 Dec 2023 at 12:39pm
No I did not remove pump drive shaft.
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 20479 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 05 Dec 2023 at 1:49pm
Some times you've got to wrestle them a little but you still might be off one spline. Rotate it back and forth and see what happens.
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I M Fedup View Drop Down
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Joined: 01 Jul 2020
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Points: 28 		Post Options Post Options   Thanks (0) Thanks(0)   Quote I M Fedup Quote  Post ReplyReply Direct Link To This Post Posted: 05 Dec 2023 at 4:49pm
Was the pump sent out for repair? If so did it come back with the throttle shaft tied fully back? Did you tie the throttle shaft all the way back before removing the pump? If all that is a no, I would take the pump back off, look down into the bore and see if there is a tab with two tangs that may be out of the slots they need to be in. Work that into place then tie the lever back and try again. 
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55allis View Drop Down
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Joined: 30 Jun 2020
Location: Griswold Iowa
Points: 697 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 55allis Quote  Post ReplyReply Direct Link To This Post Posted: 05 Dec 2023 at 9:07pm
I go with Fedup, when I pulled the one on my d262 I never tied the throttle to full and my local diesel specialist got mad at me…
1955 AC WD45 diesel with D262 repower, 1949 AC WD45
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Wendell,W.N.H. View Drop Down
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Joined: 28 Jul 2012
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Points: 28 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Wendell,W.N.H. Quote  Post ReplyReply Direct Link To This Post Posted: 06 Dec 2023 at 7:00am
I did't tie throttle shaft back when I took it off, but it was wired back when it came back. I will look to see about the tangs and slots in the pump. Thanks for the replies. If all else fails can I remove the 6 bolt round cover on the front of the engine, take the nut off that holds the pump drive gear on, and remove the shaft, then re-assemble?
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injpumpEd View Drop Down
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Joined: 13 Sep 2009
Location: Walnut IL
Points: 4907 		Post Options Post Options   Thanks (0) Thanks(0)   Quote injpumpEd Quote  Post ReplyReply Direct Link To This Post Posted: 06 Dec 2023 at 1:47pm
I always take the front access cover off when installing a DC pump like this on a D21/210/220, then I can wrestle the gear in my right hand, and the pump in my left. The thrust button and spring in the front takes some effort to compress though. Good to be cautious, never force anything lol!
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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injpumpEd View Drop Down
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Joined: 13 Sep 2009
Location: Walnut IL
Points: 4907 		Post Options Post Options   Thanks (0) Thanks(0)   Quote injpumpEd Quote  Post ReplyReply Direct Link To This Post Posted: 08 Dec 2023 at 7:21am
Well, did you get it to cooperate?
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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Wendell,W.N.H. View Drop Down
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Joined: 28 Jul 2012
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Points: 28 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Wendell,W.N.H. Quote  Post ReplyReply Direct Link To This Post Posted: 09 Dec 2023 at 3:58pm
Happiness is ---- the pump sliding into place. Taking off the front cover did the trick. Thanks for your help Ed.
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SteveM C/IL View Drop Down
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8235 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 09 Dec 2023 at 10:53pm
Originally posted by Wendell,W.N.H. Wendell,W.N.H. wrote:

Happiness is ---- the pump sliding into place. Taking off the front cover did the trick. Thanks for your help Ed.

Now lets just hope you were CAREFUL and didn't roll the rear umbrella seal....
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SteveM C/IL View Drop Down
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Joined: 12 Sep 2009
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Points: 8235 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 25 Dec 2023 at 9:42am
move to page one for the guy in Florida
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Dwight from Orlando View Drop Down
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Points: 59 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dwight from Orlando Quote  Post ReplyReply Direct Link To This Post Posted: 26 Dec 2023 at 7:30pm
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Points: 59 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dwight from Orlando Quote  Post ReplyReply Direct Link To This Post Posted: 16 Jan 2024 at 8:58pm
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