adding a hydraulic pump on a wd45
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=138913
Printed Date: 05 Sep 2025 at 11:54pm
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Topic: adding a hydraulic pump on a wd45
Posted By: Rick143
Subject: adding a hydraulic pump on a wd45
Date Posted: 30 May 2017 at 12:25pm
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I am looking to ad a hydraulic pump on my WD45. I see some nice looking pumps on surpluscenter.com. I want to put in a priority valve for power steering and a spool valve for double acting hydraulics. My question is how big of a pump do I need (gpm?
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Replies:
Posted By: jbirnsch
Date Posted: 30 May 2017 at 4:42pm
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Are you adding this so that it is live all the time? If you look at a Gleaner E there is a pump/reservoir all in one unit that is belt driven from the front crank pulley. The gleaner E has a 2 groove crank pulley just for this. It would hang out the side but would be live all the time.
Just and idea.
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Posted By: Michael Crowe
Date Posted: 30 May 2017 at 10:48pm
A pump from a 445 loader runs off the crank pulley and works real slick. The 455 loader has live power.
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Posted By: Rick143
Date Posted: 31 May 2017 at 12:15pm
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I'm thinking about mounting it on the front of the crank. They have some Eaton pumps on surpluscenter.com that look shallow enough. But I don't know how big of a pump I need?
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Posted By: DrAllis
Date Posted: 31 May 2017 at 2:20pm
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A front pump to a 445 loader was around 10 GPM at 1700 RPM.
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Posted By: B26240
Date Posted: 31 May 2017 at 2:26pm
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I sure wish M&W was still making pumps that went between govenor and dist. I have had a couple of them on Farmalls and they work good, compact as well. Might be a idea for some body to make up a kit to do this as this is a common request to put hyd on older tractors like WC's etc
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Posted By: Rick143
Date Posted: 01 Jun 2017 at 12:15pm
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Thanks for the reply the pump I am looking at is about 11 or 12 gpm for $245.00. I don't think I'll do better than that.
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