I bought the tractor used lift was not working I bought a lift kit for it had a guy works on tractors some put it in changed fluid he said it was clean on inside went through all of it found nothing really bad lift still didn't work if you have lower arms off top arms pic up a little soon as you put lower ones back on nothing he thinks it's pump said if you have it on you have no pressure in line you can put finger over line no pressure I have been told it's probably another problem by others that 9 out of 10 times it's not pump
- Thread starter crfjr36
- Start date
not 100 percent sure on that he said down by transmission he said wasn't enough pressure to even push your finger off and he said the plug in bottom of pump if you take it out barely any oil comes out but a place I called today that sells pumps told me you won't have much oil come out I'm going to get tractor from guy this weekend said he has all he knows to do that he thinks I need s pump trying to figure out best route to go now
The reason I asked is that such pump makes virtually no pressure without a restriction. When unloader valve gets stuck in bypass position (a common problem) then there is only a very low pressure via the back pressure valve. Just enough to 'try' to lift the arms. Low volume pumps, so the flow when the pump plug is removed isn't exactly a gusher. Sometimes it is just a matter of pump losing prime , but that can be as a result of an air leak in suction at a gasket/O-ring or a shaft seal. Several possibilities.
Ultradog MN
Well-known Member
- Location
- Twin Cities
Welcome to the Ford board.
I don't have an answer to your question but
I can tell you your posts will be a heck of
a lot more readable if you use some
punctuation.
I don't have an answer to your question but
I can tell you your posts will be a heck of
a lot more readable if you use some
punctuation.
Destroked 450
Well-known Member
- Location
- Harned, Ky
Telling us what model of tractor you have also helps, some 69 3 cylinder models have different pumps and lift tops.
Sean in PA
Well-known Member
c5nn600aa is an engine mounted piston pump used by the 2000 & 3000 series, and also by the S-O-S version of the 4000. There are metal lines going from the right side of the rear axle center housing forward, then up and across in front of the steering column to the pump on the left side of the rear of the engine. My guess would be that there is a leak at the center housing end of the suction line, which is the thicker of the two lines.
If the tractor was made before October 1, 1969 then the two lines are actually a single assembly with both lines permanently attached to a manifold at the center housing end and there should be three o-rings behind the manifold, so I would replace all of them.
If the tractor mas made on or after October 1, 1969, then the two lines are separate parts and you can just disconnect the suction line, but you need to replace the double nut assembly and the o-ring. I think that the o-ring comes with the double nut assembly.
If the tractor was made before October 1, 1969 then the two lines are actually a single assembly with both lines permanently attached to a manifold at the center housing end and there should be three o-rings behind the manifold, so I would replace all of them.
If the tractor mas made on or after October 1, 1969, then the two lines are separate parts and you can just disconnect the suction line, but you need to replace the double nut assembly and the o-ring. I think that the o-ring comes with the double nut assembly.
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