WD/WD-45 Hydraulic Pump Questions
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=200944
Printed Date: 01 Dec 2024 at 12:40am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: WD/WD-45 Hydraulic Pump Questions
Posted By: wjohn
Subject: WD/WD-45 Hydraulic Pump Questions
Date Posted: 17 Apr 2024 at 10:40pm
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1. For all of the balls/seats, what is the best way to check them? Visual inspection, and then is there a good way to pressure test them individually? 2. Do you need to seat new balls to old seats (if I assume at least some of my old seats are okay)? EDIT: To clarify, using a hammer and drift... I know this needs to be done with new seats, but it's not clear with old seats/new balls.3. Is the scoring shown below in the bore for the valves/sleeves a lost cause, or can this knocked well enough to work with careful use of something like Scotch-Brite? One of the scores is just deep enough that I can catch it with my fingernail if I really try. I know Mack always said on here to not buy the complete kit from AGCO as you really only need a handful of parts for most of these pumps.  ------------- 1939 B, 1940 B, 1941 WC, 1951 WD, 1952 CA, 1956 WD-45 |
Replies:
Posted By: Allis dave
Date Posted: 19 Apr 2024 at 8:10am
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Those do look scored, but I don't know how critical that is. As far as the seats. When I rebuilt my pump I had a lot of issues. I kept the old seats. Bought 2 sets of new balls. I put in one set of new balls and gave them each a good wack with the hammer and brass punch to seat them. Then I put in the 2nd set of balls incase I deformed the 1st set. |