Farm Equipment - Elec fuel pump D-21 puller

Print Page | Close Window

Elec fuel pump D-21 puller

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=29823
Printed Date: 04 Mar 2025 at 7:33pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Elec fuel pump D-21 puller

Posted By: BLee Mn
Subject: Elec fuel pump D-21 puller
Date Posted: 26 Apr 2011 at 7:34pm

have my inj pump turned all the way up without getting radical, turned rpms up to 2700, have 7080 injectors, still only have a little over 200hp, was thinkin im not getting enough fuel to pump, so thinkin of adding a elec fuel pump. what do you guys think?

-------------
Cowboy UP

Replies:

Posted By: DrAllis
Date Posted: 26 Apr 2011 at 8:36pm

How did you turn up the pump??

Posted By: injpumpEd
Date Posted: 26 Apr 2011 at 8:58pm

As DR says, there is alot more to turning up the fuel on a DC pump than backing out the torque screw, and bottoming out the leaf springs. The pump needs to be taken apart and shoes of a different dimension need to be installed to add to the roller dimension. Not a job for a beginner. By the way, I run a Black Holley on my 210 Farm puller with a Roosa pump. 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!

Posted By: injpumpEd
Date Posted: 27 Apr 2011 at 2:45pm

BLEE, your mailbox is full. I tried to pm you back but couldn't.

-------------
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: Gary(WI)
Date Posted: 27 Apr 2011 at 2:59pm

You might have to go to a Bigger injection pump mhead a 3.1 mm head if you want much more than that we put a surflo electric pump on our 7030 when we used to pull it

Posted By: DrAllis
Date Posted: 27 Apr 2011 at 8:35pm

You'll have a very hard time matching a good IH1066 with a D21 inj pump. They can make 240-260 HP with larger injector tips and stock inj pump and turbo. 7080 injectors are a step up with .015" holes, but .020" holes are even better. Also setting injectors at 2500-2800 psi will help too, even tho a pump shop will argue the point--just do it. Removing the pumps internal leaf springs has never caused me one minutes downtime in 35 years and will gain you some fuel output improvement, but a D21 pump is a little small compared to a 220 or even better the Roosa DB450 hyd head that would be more in line with 300 cc's of fuel delivery.....what did they say your pump flowed for cc's??? Also there's waaaay better turbo's out there than a D21 turbo.

Posted By: BLee Mn
Date Posted: 28 Apr 2011 at 8:17am

pm box is now empty sorry

-------------
Cowboy UP

Posted By: WI D-21
Date Posted: 28 Apr 2011 at 1:22pm

Are they any modifications to put 7080 injectors in a D-21 ? Do the lines fit?

Posted By: injpumpEd
Date Posted: 28 Apr 2011 at 2:35pm

just put 7080 nozzle tips in the D21 holder. 74035509. A small improvement, but when you step up more you need to lazer(EDM) the nozzle holes larger. Alot more work involved to put in the am bosch injectors. Ed.

-------------
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!