Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo Auction Link (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Discussion Forum
:

38 allis b

Welcome Guest, Log in or Register
Author 
dave

11-26-2001 19:40:35




Report to Moderator

lost oil pressure no pressure at gauge, no flow with gauge out,not lifting oil,ran fine previous,before i split tractor any hints? bad vanes in pump? bad vane springs? relief stuck open? need help..... ..




[Log in to Reply]   [No Email]
Phil Auten (Tx)

11-26-2001 20:02:31




Report to Moderator
 Re: 38 allis b in reply to dave, 11-26-2001 19:40:35  
Dave,
The pump may have just lost prime. Remove the oil filter and pour, squirt or shove about 1/2 pint of oil down the tube that runs up into the filter. Reinstall the filter and try it. If there is no tube inside the filter, this can also cause the loss of pressure.

Good luck,
Phil



[Log in to Reply]  [No Email]
38 allis b

11-27-2001 16:31:45




Report to Moderator
 Re: Re: 38 allis b in reply to Phil Auten (Tx), 11-26-2001 20:02:31  
phil i have heard of others saying the same thing have you tried this method? i have 2 other bs and a d10 that dont get used all that much and never had a problem with oil pressure. iam lost ,i saved this b from a junk yard stuck for 7 years put in rings and a head job used for over 20 hours and all at once no oil..... .. just split tractor tonite and found no trouble with pump it is book tight????? ????? now what?????

[Log in to Reply]  [No Email]
Dick L

11-28-2001 15:34:05




Report to Moderator
 Re: Re: Re: 38 allis b in reply to 38 allis b , 11-27-2001 16:31:45  
third party image

If you pulled the pump off and the pin in the cam is not sheared off, you pulled the spring and ball out and the spring was not broken and the ball was not pitted as a lot of them get when setting for a long time. You took the cover off the pump and the cover does not have grooves cut into it, the vanes are not stuck and the vane or blade springs are not rusted to the point they have lost there tention. You have filled the pipe coming out of the pump with oil. I would check to make sure that the oil pickup pipe in the pan had not come loose, the pickup screen was not pluged.
The cover on the right came off a pump that would not build pressure. The one on the left was just resurfaced.

[Log in to Reply]  [No Email]
dave

11-29-2001 17:06:17




Report to Moderator
 Re: Re: Re: Re: 38 allis b in reply to Dick L, 11-28-2001 15:34:05  
dick
thanks so much for your info & pictures as this is just what the pump looks like, iam resurfacing the body and will reassemble thanx again..... ....



[Log in to Reply]  [No Email]
Dale E.

11-30-2001 06:02:38




Report to Moderator
 Re: Re: Re: Re: Re: 38 allis b in reply to dave, 11-29-2001 17:06:17  
Dave, Be sure you put the rotor blades back in right. Direction of rotation is critical.(think I replaced blades wrong a couple of b's ago. 5-7 lbs. is all the pressure it will build. Everything else was in good shape. I'm almost positive I messed up when I started thinking about which way the cam turned! Had the block on a table upside down and think I got confused. Will split and check over the winter.)I learn the hard way sometimes but still learning.Dale E.

[Log in to Reply]  [No Email]
Tom

11-29-2001 17:49:54




Report to Moderator
 Re: Re: Re: Re: Re: 38 allis b in reply to dave, 11-29-2001 17:06:17  
When you put the pump together put some thick oil in it, or a mixture of oil and STP. This will help you get the oil up to it and flowing, priming the pump. It might not be necessary, but putting oil in it will at the least lube the pump until oil gets to it.



[Log in to Reply]  [No Email]
steve

11-27-2001 19:05:22




Report to Moderator
 Re: Re: Re: 38 allis b in reply to 38 allis b , 11-27-2001 16:31:45  
phil is right. sometimes it just happens, but normally after setting for weeks or months. priming is a good idea if the filter is completely dry. If the pump was worn you would at least get enough oil up the to filter to drip out the gauge hole. always reprime the pump prior to going in further.



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy