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Roosa Master Question for jdemaris?

A

Anonymous-0

Well-known Member
jdemaris, your tips, advice and knowledge of the Roosa Master IP"s has been very much appreciated by many of us who frequent the YT forum. Thank you for willingly sharing it with us. I have a question concerning a DBVCC pump on a Ford 601 Workmaster that actually may not be an issue since I haven"t re-installed it yet but after tearing it down and completely resealing it, I installed the drive-shaft complete with new seals but have noticed that the shaft appears to be off center where it exits the housing. Obviously the shaft is not designed to be a machine fit within the sleeve but instead fits somewhat loosely. To your knowledge, does it matter if the shaft is kicked over to one side like this? I was wondering if it basically "floats" in the lower part of the housing perhaps attributed to governor response during operation? Thanks in advance for any advice you can offer.
 
If I can tag-a-long here I need to rebuild the pump on my 971 this winter. You have told where to get the kit, and said that it is not that hard to do. Does the kit include instructions?
 
If I can tag-a-long here I need to rebuild the pump on my 971 this winter. You have told where to get the kit, and said that it is not that hard to do. Does the kit include instructions?
 
Don"t mind at all. I believe jdemaris is the indiviual that stated where to get the kits much cheaper than what I paid for mine however, the one I used was $28.00 and was purchased from an Injector Pump shop located in Alabama. The manufacturer of the kit was one that jdemaris had rated as a high quality but he knew where to get them for around $12.00+/-. It does not include rebuild/reseal instructions. You will need to get a manual like the one most of the folks on here suggest which is a John Deere supplement on Injector Pumps. I can"t remember the number of the manual but you can find them pretty easily on Ebay for about $20.00. Just remember that the manual references a clockwise rotatating pump so if you"re rebuilding a counter-clockwise pump, you will need to reverse a couple of the clockwise rotating assembly instructions. Hopefully jdemaris will jump in here soon however you may be able to search the archives and find out what the John Deere manual number is that covers the Roosa Master pumps or I"ll try to post it later after I get home from work.
 
I believe that manual is SM-2045. You can order it from Deere or else you can contact Deerely Departed as I believe they have that manual in stock as well. Mike
 
It sounds like you need to replace the bronze bushing/pilot bearing in the housing where the shaft comes out.
 
The shaft should be centered in the bushing.
When you installed the shaft you have rolled one of the seals. It will leak fuel into the engine crankcase. Need to replace the seals.
 
After pulling the shaft back out, I discovered that the O'ring that retains the shaft in the housing had rolled out of its groove on one side and had kicked the shaft off-center. The cup seals were undamaged so I didn't have to replace either one so after eliminating that little issue and reinstalling the pump, bleeding the air and checking for leaks, the Roosa Master is back at work. jdemaris was right when he stated that "resealing" one is easier than rebuilding a Rochester Quadra-jet Carburetor and the Roosa Master has less moving parts.
 
Mike is correct, the manual is a SM-2045 and the rebuild kit is a Stanadyne #24371 or Spaco #U24371. I used the Spaco kit which is excellent quality and had everything needed to rebuild the DB pump on my Ford except for the O'ring that retains the shaft in the pump so I just re-used my old one since it doesn't serve any other purpose than to keep the shaft from falling out in vertical mounted applications.
 
I think I need to replace the bushing in the housing where the seals ride on my DB pump. Can this be done? The bushing has a pretty deep groove in it where the inner seal rides.
 
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