Re: Very Slow Leaks.

On Tue, 06 May 2025 10:19:59 -0700, Jeff Liebermann <jeffl@cruzio.com>
wrote:

I once bought some inner tubes that seem to have come from the factory
with leaks. (...)

A bit more.  I didn't have enough patches handy, so I used a small
blob of automotive "gasket maker" to plug the hole. 
<https://www.permatex.com/products/gasketing/black-gasket-makers/permatex-ultra-black-rtv-silicone-gasket-maker-5-oz/>
I didn't ride enough to determine how many months or miles the black
goo was going to last, but it seems like it would work on small pin
holes.  I don't recommend it for large punctures, long cuts or cracks.

Also, I had some slow leaks that were difficult to find using soapy
water.  (At the time, I didn't think to try the ultrasonic leak
detector).  So, I over-inflated the inner tube.  I think it's probably
26 x 1 3/8:
<https://www.learnbydestroying.com/jeffl/crud/inflated-tube.jpg>
Not only did the soapy water detect the leaks, I could hear the air
leak and also feel the air with my fingers.  Also, the normal size of
the tire is the mounted tire located behind the over-inflated tire.

If I ever get around to buying a IR camera, I could try heating the
over-inflated tube, and possibly see the air leak because of the
temperature difference. 

--
Jeff Liebermann                 jeffl@cruzio.com
PO Box 272      http://www.LearnByDestroying.com
Ben Lomond CA 95005-0272
Skype: JeffLiebermann      AE6KS    831-336-2558