(800) 853-2651
SHOP NOW

9N hydraulic system

1

1dconhawks

New User
I am the owner of a 47 Ford 9N that has, over the last five or so years contracted a distinct 'knock' in the hydraulic pump when I raise the lift arms by moving the quadrant lever to the up position. I have had this old girl since 1974, with very few problems. I have, in my spare parts box, an 8N hydraulic pump that looks identical to my 9N pump except for the position control valve lever. Am I better off to change out both the pump and the quadrant lever/lift cylinder casting as a pair? I have both parts and they were supposedly in good working order when they were removed.
 
Hate to tell you but you DO NOT have a 47 9N Ford as the 9N was not made then. The 9N was only madefrom 1939 to midway of 1942. You might have a 2N as they were made late 42 into 1947. But the control valve from an 8N will not work in a 9N or 2N. And the pump in my 1944 2N has done the knocking under heavy load for years and I see no reason to change it. I do not know if the 8N pump is interchangeable with the earlier 9N - 2N pumps or not. But forget about the knocking, it soes not hurt anything.
 
If changing out the pump and top cover to the 8n unit then
change it out.
I would check components for wear before installation. I would
upgrade the piston to an NAA piston.
If just changing out the pump to the 8n pump then you will need
the rod from the 8n top cover. This will give you position
control but you will lose draft control.

Kirk
 
You must log in or register to reply here.

Similar threads

W
Hydraulic pump operation
Replies
4
Views
196
BarnyardEngineering
BarnyardEngineering
R
Would you hazard a guess on a JD 3 pt system
Replies
4
Views
538
Tx Jim
Tx Jim
C
case 830 hydraulic pump replacement
Replies
1
Views
372
jon f mn
jon f mn
ster1
Deere 401C hydraulic help
Replies
7
Views
320
ster1
ster1
R
47 Case VIA Hydraulics
Replies
3
Views
258
Ronie
R
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.

Copyright © 1997-2024 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

Back
Top