(800) 853-2651
SHOP NOW

removing a broken tire valve core from a 15.5 tube

S

SDE

Well-known Member
With the valve at the 6 o'clock position, you can look down into the valve stem. The poppet valet is still there, but the center raised frame that it sets into is broken. That is the part the the removal tools grabs onto to unthread the core. Has anyone very had to attempt to remove one the these after it has been damaged? The valve leaks because the valve won't stay centered in the core. I think if I stick a tool down in there I will damage the internal thread and then it will not be able to be screwed out or a new one back into the valve.
TY
SDE
 
Some removal tools have a rethreader die. Sometimes it works,sometimes it doesnt. Try it,either it will work ,or it wont and you will need to buy a new water valve.Simple as that.
 
It would be easier to replace the whole valve stem assembly than to try to dig the core out and rethread and hope it holds. You either have a inner or outer valve stem, just get a 2 pack at the farm store and replace both and be done with it.
 
I had a broken valve core that the removal tool wouldn't extract. I drilled out the core using a bit slightly smaller than the inside diameter of the stem. I was then able to retap the stem using the removal tool. Worked for me.
 
What valve stem does the tube have? If it is like TR218A fluid stem, on a 15.5 - 38, you can replace the valve core housing, which screws into the tube stem. For a one piece stem as found on smaller tubes, if the core seat is damaged beyond cleaning up with a core tool, you may have to replace the tube. Or you can try putting a replacement stem on the tube. The newer TR220 stems use the newer core housing as well. Internal or external threads on the core housing will tell you which you have.

mvphoto93806.jpg

mvphoto93807.jpg

mvphoto93808.jpg


This post was edited by Jim.ME on 06/27/2022 at 03:28 am.
 
Since if it has fluid in them you need to turn the stem to the top and then just replace the whole stem piece by screwing it out or off the pipe. they get corroded with fluid and time anyway. I just change the whole thing less mess and faster when there is fluid in the tire then change the core to put it in another tire without fluid in it like a grain cart or such.
 
Jim, thank you for the pictures. I looked at them and I had expected this bad valve stem to unthread from the tube like the first two pictures. Below the threads for the valve cap is a hexagon that I think is there to hold the stem while you tighten the lock ring down against the rim. I guess I could try to hold the valve stem with a vise grip and try to turn the top of the valve stem with a wrench. Maybe I'm wrong, but it looks to be a one piece valve stem and I think I will destroy it trying to turn it.

My temporary fix was a steel cap, Teflon tape and tightened down the cap with a wrench. There wasn't a leak detected afterward, but I don't like this bandage fix.
 
(quoted from post at 08:12:33 06/27/22) Jim, thank you for the pictures. I looked at them and I had expected this bad valve stem to unthread from the tube like the first two pictures. Below the threads for the valve cap is a hexagon that I think is there to hold the stem while you tighten the lock ring down against the rim. I guess I could try to hold the valve stem with a vise grip and try to turn the top of the valve stem with a wrench. Maybe I'm wrong, but it looks to be a one piece valve stem and I think I will destroy it trying to turn it.

My temporary fix was a steel cap, Teflon tape and tightened down the cap with a wrench. There wasn't a leak detected afterward, but I don't like this bandage fix.
Click to expand...

It would help if you posted a picture of what you have. And what size tube exactly are you dealing with 15.5 is only part of it.

This post was edited by Jim.ME on 06/27/2022 at 05:18 am.
 
I'm getting a little better with extracting pictures from my phone. I will try to post a picture tonight. It is the neighbors tractor and while he might not object to my doing it now. I don't like poking around when he's not home.
TY
SDE
 
(quoted from post at 08:22:38 06/27/22) I'm getting a little better with extracting pictures from my phone. I will try to post a picture tonight. It is the neighbors tractor and while he might not object to my doing it now. I don't like poking around when he's not home.
TY
SDE
Click to expand...

Is this a tractor rear tire like a 15.5 - 38 or something else?

The stem is the part molded to the tube, or clamped into the rim for a tubeless tire. The valve core housing (pictures 1 or 2) which is what you remove from the stem, holds the valve, which you say has broken. Some valve core housings may have a hex on them instead of the grip ridges.
 
This valve looks to be a one piece unit. If I clamp a vise grip onto the threads will I be able to unscrew the upper half? Unfortunately, after more than five attempts to attach a photo I am giving up on it.
 
(quoted from post at 20:23:16 06/27/22) This valve looks to be a one piece unit. If I clamp a vise grip onto the threads will I be able to unscrew the upper half? Unfortunately, after more than five attempts to attach a photo I am giving up on it.
Click to expand...

I can't see it. You don't/won't tell the full tube size. You say it looks like one piece, you don't say it looks like the TR218A stem.
I can't tell you if it will unscrew if you put vice grips on the threads and force the top without damaging something based on those things.

If it is a TR218A, or similar stem, on a tube like a 15.5 - 38 tube. When the valve core housing is screwed into the stem, you may not see separation line between the two and I can guess it will unscrew,but that is just a guess at this point. I have had to use pliers on the valve core housing to start some loose from the stem in the past. If you decide to try it, all l can say is be gentle.
 
After loading the photos to the computer, I noticed that the photos didn't have a img or jpg with the photo. I renamed them but they still didn't load. Yes it is a 15.5 38 tube. My Band-Aid repair is holding so far.
 

Then it should be a TR218 type stem arrangement. Gently hold the threads above the nut securing the stem to the rim (which maybe nylon or metal if it is there) and you should be able to unthread the valve core housing from the tube stem and replace it (the entire valve core housing). You just need to see if it is the old type that has a nut that threads on to the stem or the newer style that has threads that screw into internal threads of the stem. A couple pictures of the two types mounted in rims to help you with ID so you can get the correct type/style.

mvphoto93824.jpg


mvphoto93825.jpg
 
You must log in or register to reply here.

Similar threads

K
Valve stem core size Ford 3000 Front Tire
Replies
16
Views
936
BarnyardEngineering
BarnyardEngineering
S
Removing the valve stem core of a liquid filled tire
Replies
5
Views
892
grizz02
G
B
Tire valve stem broken on Ford 555
Replies
4
Views
962
bvahjen
B
R
JD 4240 general questions
Replies
4
Views
618
Tx Jim
Tx Jim
B
ZANE'S Hydraulic Troubleshooting
Replies
2
Views
752
ZANE
Z
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