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

Allis Chalmers Discussion Forum

D17 Oil Pressure

Welcome Guest, Log in or Register
5B Ranch

03-17-2008 06:44:17

Report to Moderator


I have a 1958 first series D17 that starts and runs like a champ. After about 20 minutes, though, the oil pressure drops. I changed the oil and made sure all the seals/gaskets were right, had the right filter, had the 'stem' inside the filter, etc. (per some earlier posting recommendations on the subject). That helped a bunch - oil pressure shot right up. Still, 20 minutes later it dropped to almost nothing. Bad gauge? Any other thoughts or suggestions? I've got a couple general oil leaks and drips, but nothing dramatic.


[Log in to Reply]   [No Email]
Texas Denny

03-17-2008 10:51:35

Report to Moderator
 Re: D17 Oil Pressure in reply to 5B Ranch, 03-17-2008 06:44:17  
Sounds like bearings are worn out. Tractors will run a long time in the condition you describe if it isn't knocking or making other unfamilar noises.

I once had a car that had zero oil pressure after warming up. I added one can of STP to the oil and the pressure would only drop to 20 when warm. At low RPM, it was still pretty low. STP today is not as viscous or sticky as it was when I did that so it doesn't work as well. Back then, the engine had to be at operating temperature to add it. It is still worth a try.

Beyond that, you'll need to replace cam bearing and all crank bearings. Usually the crank can be reground and under size bearings can be purchased.

I'm not a proponent of most of these oil additives and believe some do more harm than good. But STP has always served me well.

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

Hop to:

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