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

Allis Chalmers Discussion Forum
:

PTO Gasket

Welcome Guest, Log in or Register
Author 
CH

04-03-2004 12:18:44




Report to Moderator

Can anybody tell me the difference in the gaskets for a PTO assemble w/o hydraulics and one with. I'm changing the PTO on my "B", putting one on with hydraulics, and the parts manual calls for two different part numbers.

Thanks




[Log in to Reply]   [No Email]
Rod (NH)

04-03-2004 13:52:14




Report to Moderator
 Re: PTO Gasket in reply to CH, 04-03-2004 12:18:44  
Hi CH,

The B transmission and PTO assemblies share a common lubrication sump and use the same lubricant. The hydraulic pump, if so equipped, takes it's suction from the PTO area of this common sump. The PTO gasket for a PTO equipped with a hydraulic pump has a continuous portion of gasket material across the bottom portion. That gasket then acts as a dam to partially divide the transmission and PTO sumps. This fact prevents the hydraulic pump from ever totally draining the transmission lubricant. The pump will be starved for oil before the lube is removed from the transmission area.

The gasket for a PTO w/o hydraulic pump has no such barrier section and is just a normal peripheral gasket.

A fact to remember is that if you add another hydraulic cylinder or use one with a larger diameter or longer stroke than originally supplied, you can easily starve the hydraulic pump of oil since the volume available to it is quite limited by design, especially with the proper PTO gasket.

An interesting side note is the "official" lubricant specified for this area. Before hydraulics, the lube recommended by AC for both the transmission and PTO (same sump, remember) was SAE 140 gear oil above 32 deg F and SAE 90 gear oil below 32 deg F. The later recommendations for lube (transmission and PTO) with hydraulics was changed SAE 20W since the heavy gear oil was unacceptable for use with the hydraulic pump.

third party image Rod

[Log in to Reply]  [No Email]
CH

04-04-2004 14:34:30




Report to Moderator
 Re: Re: PTO Gasket in reply to Rod (NH), 04-03-2004 13:52:14  
Thanks Rod,

The gasket pictured in the parts book is the one with more material coming up from the bottom like you said, that's why I asked. My owners manual calls for 20w.

Thanks for the comformation.



[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 - Timing Your Magneto Ignition Tractor - by Chris Pratt. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. On our first cosmetic restoration, not having a manual, we carefully marked the wires, taped the magneto in the position it came off, and were careful not to turn the engine over while we had these components off. We thought we could get by with this since the engine ran perfectly and would not need any internal work. After the cleanup and painting was done, we began reassembly and finally came to t ... [Read Article]

Latest Ad: Wanted 13x28 power adjust rim for D 17 allis in NE Nebraska [More Ads]

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