Welcome! Please use the navigational links to explore our website.
Company Logo (800) 853-2651 Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Case Tractors Discussion Forum
:

case 930 oil pressure update

Welcome Guest, Log in or Register
Author  [Modern View]
fairchm

12-29-2013 00:31:32




Report to Moderator

I asked for some advice on this problem in the spring. Was hoping for some more input. My 930 has a freshly rebuilt motor and refurbished older style side mounted oil pump. The pump was bench tested before assembly. After 10 hours or so of successful operation it developed an interesting oil pressure problem that seems to come and go. Sometimes the oil pressure comes right up to 40psi within seconds of starting and is rock solid. Sometimes the oil pressure rises slowly to 20psi or less and jumps erraticly.The pressure can change 10psi or so in a second.
The behavior seems to correlate with temperature. @40f or below i"ve seen the jumping behavior and @30 or below a failure to generate pressure.
I"ve checked the gauge, changed the oil and filter without improvement.
One person suggested the pump could be sucking air but apart from the joint between the inlet screen there isn"t an obvious source for air..
Anyone in the Midwest have experience with these tractors at low temperatures? I"m assuming this is not typical. Anyone convert to the newer front driven oil pump? Wondering if that might be the way to go.

[Log in to Reply]   [No Email]
casecollectorsc

12-29-2013 16:20:02




Report to Moderator
 Re: case 930 oil pressure update in reply to fairchm, 12-29-2013 00:31:32  
The oil pressure "jumpin around" have seen as a spun main bearing sometimes.



[Log in to Reply]  [No Email]
dzc3

12-29-2013 16:00:24




Report to Moderator
 Re: case 930 oil pressure update in reply to fairchm, 12-29-2013 00:31:32  
I agree take the line loose at pressure gauge watch flow, if you want to get scientific get a couple of glass measuring cups see how much you collect at different times. What about trying a different gauge?



[Log in to Reply]  [No Email]
Jerry he

12-29-2013 04:57:41




Report to Moderator
 Re: case 930 oil pressure update in reply to fairchm, 12-29-2013 00:31:32  
Being that eradicate I would look for anything that can move. I do not think it has to do with tolerances. This would be the pressure relief on the pump, dirt in a gallery going to the pressure gauge. You might try taking the line off of the pressure gauge and putting end in the dipstick hole. Run tractor for a while to make sure line is flushed good. Any chance that a rag was left in the engine somewhere?

[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


Today's Featured Article - What Price Enthusiasm? - by Anthony West. Quite frankly, for some time now restorers like myself have become more and more concerned about the rapid increase in the prices of old farm machines here in England. There is now a growing market for "As found" machines. Which as machines get rarer, has found the birth of a new industry....one of the "procurement agent". These agents appropriate as much old machinery as possible then inflate prices at auctions. So at what price enthiusiasm? We are now seeing poor machines which 3 years ago ma ... [Read Article]

Latest Ad: 4- D6 cat dozers and accessories [More Ads]

Copyright © 1997-2022 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