Mars Posted March 3, 2018 Share Posted March 3, 2018 5:50/19 . Tire. Had a tire that kept going flat, so I put in a new tube with liner. I can't get the valve stem to stop leaking air. Tried two other stems , no luck. Stumped and frustrated. Link to comment Share on other sites More sharing options...
Guest Posted March 3, 2018 Share Posted March 3, 2018 Drop center wheel or split rim?? What vehicle?? If you put in a new tube and liner (1) how did you try two other stems. Perhaps you mean tried two other cores? If you meant cores were the ones you installed new or old ones that you had lying around? What is leaking? It is easy to tell if the tube or the core is leaking. Inflate the tire, put a drop of water or even spit on the top of the valve stem. If it bubbles the core is the problem. If it doesn't bubble wiggle the stem back and forth, maybe you can hear the stem leaking. Two different causes, two different solutions. Knowing the style of rim/wheel would really help us help you. Link to comment Share on other sites More sharing options...
keiser31 Posted March 3, 2018 Share Posted March 3, 2018 1930 DeSoto 4 door sedan. Link to comment Share on other sites More sharing options...
Mars Posted March 3, 2018 Author Share Posted March 3, 2018 Sorry, collapsible rim, new cores soap bubbles at core. Too tight? Link to comment Share on other sites More sharing options...
Guest Posted March 4, 2018 Share Posted March 4, 2018 If the bubbles are coming out between the stem and the core you need a new core or else somehow you pinched the stem when installing the new tube. Easy to do just ask me. In that case you need a new tube or at least a new stem vulcanized onto the tube you have. I have small tool that cleans up the threads inside the stem but have found if you have pinched the stem it isn't able to be fixed.Does the tire go flat now. The reason I ask is once I thought I had a leak after putting in a new tube and it was the air trapped between the tube and the tire coming out beside the stem. I took it apart twice before I realized that is wasn't really a leak. Good luck, and may your air be contained. Link to comment Share on other sites More sharing options...
Spinneyhill Posted March 4, 2018 Share Posted March 4, 2018 Can you post a photo of the bubbles to clarify my misunderstanding? Core at end of valve brass stem, or between brass stem and rubber sleeve, or ? Link to comment Share on other sites More sharing options...
Mars Posted March 4, 2018 Author Share Posted March 4, 2018 I did have to use pliers to hold the stem from getting drawn into the rim.(another problem). I must have pinched the stem, makes sense. I have long metal stems on the other wheels, but only had short rubber tubes left. I'll be ordering long metal stemmed tubes today. Thanks to all. Link to comment Share on other sites More sharing options...
Guest Posted March 4, 2018 Share Posted March 4, 2018 (edited) Having re-mounted 4+ tires every five years or so for the last 58 years (approx 240+) on my daily driver, I have never had to use anything mechanical to keep my valve stem in place. A small amount of air in the tube holds the stem in the hole in the rim. Another idea would be to buy a cheap one of either one of these tools. Certainly would be cheaper than an new tube. Edited March 4, 2018 by Guest (see edit history) Link to comment Share on other sites More sharing options...
Spinneyhill Posted March 4, 2018 Share Posted March 4, 2018 My stems (for the DC) are long and bent at right angles so I can blow the tires up. I put a short piece of plastic tube on them to help me pull them through when mounting the tire-tube-rust band set. It is hard work with old stiff tires on the narrow locking ring rims. Link to comment Share on other sites More sharing options...
Mars Posted March 9, 2018 Author Share Posted March 9, 2018 I used straight center stems, but am thinking bent might have been better choice. It had straights when I got it so I just used the same. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now