Farm Equipment - Inj pump swap

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Inj pump swap

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=40620
Printed Date: 23 Aug 2025 at 10:09am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Inj pump swap

Posted By: Dans 7080
Subject: Inj pump swap
Date Posted: 15 Nov 2011 at 9:34pm

I am thinking of swapping the Roosa-Master pump on my 7080 with a Simms pump. The Roosa-Master is set at 210hp, and the Simms at 350. I dont plan on pulling any larger equipment or going any faster. The main reason is for the "out of field" 15 and 16000lb class, a few times a year. I can get the pump, lines and gear for a good price. What do you think? Good? Bad?

Replies:

Posted By: DrAllis
Date Posted: 15 Nov 2011 at 9:57pm

You'll need larger injectors too if fuel delivery is set that high....probably 4 hole x .020" diameter.

Posted By: 427435
Date Posted: 15 Nov 2011 at 10:16pm

You could run into turbo over speed problems too, with that much more fuel going through.

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Mark

B10 Allis, 917 Allis, 7116 Simplicity, 7790 Simplicity Diesel,
GTH-L Simplicity

Ignorance is curable-----stupidity is not.

Posted By: injpumpEd
Date Posted: 16 Nov 2011 at 10:09am

A 3LM466 would be a nice fit. I have one I'd sell.

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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!