(800) 853-2651
SHOP NOW

9N transmission case leak. Never heard of this one.

A

Abbby

Member
Been doing some major work on tractor which included splitting transmission to differential to remove stuck PTO shaft. Great because I can also fix that pesky leak at that joint. Put it back together and put in a couple gallons of oil in. Wanted to make sure no leaks. Unfortunately looks like it is leaking at the transmission to differential joint again. Dang. Closer investigation revealed to what appears to be a large crack in the transmission housing that is the source for the leak. Likely been there for a long time. Anyone have thoughts on this? My options are 1) weld/braze in place. I do not have equipment for this. 2) JB weld in place. I can do this but challenging on the bottom side. 3) Remove case and take some where for weld/braze. 4) Remove case and JB weld. I vote for option 4. I can do myself with little expense. Seems unlikely tractor will break in half. tractor been in the family for 47 years and never with a loader.
mvphoto51982.jpg
 
Drill a hole at each end of crack. V out crack with cut off wheel on
grinder. Sand clean, Smear JB weld let dry a day or two than smear
again. Should last a couple years. Look around for a good case in
you spare tim
 
So what are your thoughts on welding or brazing? Seems that would be better than JB weld.
 
(quoted from post at 17:31:13 04/05/20) So what are your thoughts on welding or brazing? Seems that would be better than JB weld.
Click to expand...

There's all sorts of places that could preheat and weld or braze your transmission properly, or possibly "stitch" it and make a permanent repair.

But that would require disassembly and more $$$ than a good used case or complete transmission can be had for.

Any attempt to weld or braze it "in place" and have it last would be a case of LUCK, IMHO.

It cracked in a "stress area", and most likely will crack there again unless correctly repaired.
 

You could make a cover plate drill and tap and bolt it on... Another repair is to use stitch pins...

I am sure its cast steel I would weld the ell out of it... Are be caught trying...
 
Had a crack that was weeping on my 9N transmission case. Drilled small hole at
each end probably 3/32" or so, grooved out with disc grinder,cleaned with laguer
thinner applied JB Weld, let it cure under heat lamp sanded,painted and have
been using it for at least 15 years with no weeps or leaks. Cheap fix give it a
shot. Hint, while the JB Weld is still slightly pliable if you will dob it with
the grit side of some 80 grit sand paper you can make it look like the original
casting. Good luck.
 
I am located in western WI about 1 hour east of St. Paul, MN. I would need to find something a little closer but thanks for the offer.
 

Abby, I see the direction of stress on that crack making JB weld no more than a wish. It is entirely different from a horizontal crack on an engine block. Gears is just one full day's drive away from you. I would consider his offer seriously.
 
There's a number of choices for a repair that is simply a leak stopper. I would ask the question what do you intend to do with the tractor. If there a lot of pulling involved then there's some level of loading that will cause that crack to propagate.

Ford castings were more likely iron not steel and the location of that crack indicates a flaw in the casting that initiates inside the housing at the fillet radius. This would be from any number of reasons such as a sharp edge on the core that formed the inner walls, metal temperature variation, and on and on. I would guess that the crack is pretty much at the end of the defect span.

If you just want to stop the oil leak then there's the easy route of JB Weld. I would drill crack stopper holes at each end before any repair. Brazing cast iron isn't easy and a big challenge is you need to get the oil out of the crack otherwise it will contaminate the braze joint.

You have an offer for a free case and that's the best you can get. Your tractor and your choice.

Good luck.
 
Good morning......
My experience with the FORD N's is very limited......(have owned and operated a 2-N for the past two years.....:))
With the above stated I own and operate a Ford 2-N.........
If and when the day should arrive that the Transmission housing is becomes damaged I shall install a 4 speed transmission from a parts 8-N that was given to me....

Yes, the tractor shall become a MUTT...but that is fine........

Just a thought.....

Bob..

Bob...
 
The cast iron in these Fords is a Very
good grade and welds or brazes nicely.
I could do either here at home.
But I wouldn't.
I would do as most of the others suggest
and drop a different transmission in it.
 
(quoted from post at 15:06:01 04/05/20) Been doing some major work on tractor which included splitting transmission to differential to remove stuck PTO shaft. Great because I can also fix that pesky leak at that joint. Put it back together and put in a couple gallons of oil in. Wanted to make sure no leaks. Unfortunately looks like it is leaking at the transmission to differential joint again. Dang. Closer investigation revealed to what appears to be a large crack in the transmission housing that is the source for the leak. Likely been there for a long time. Anyone have thoughts on this? My options are 1) weld/braze in place. I do not have equipment for this. 2) JB weld in place. I can do this but challenging on the bottom side. 3) Remove case and take some where for weld/braze. 4) Remove case and JB weld. I vote for option 4. I can do myself with little expense. Seems unlikely tractor will break in half. tractor been in the family for 47 years and never with a loader.
mvphoto51982.jpg
Click to expand...
ow much per year does it cost you for the amount of oil that is leaking out & how many years do you expect to use it?
 
You must log in or register to reply here.

Similar threads

H
Sherman combo shift rail oil leak questions.
Replies
1
Views
156
Bruce(OR)
B
T
mf30e transmission manifold suction pipe?
Replies
1
Views
275
jkk04
J
T
How to seal transmission bearing carriers
Replies
3
Views
246
T.R.K.
T
C
Brake on a W30
Replies
5
Views
265
rustred
rustred
O
Hole in transmission housing
Replies
6
Views
929
Roy Gatewood
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