Re: Very Slow Leaks.

On 5/13/2025 8:54 PM, Jeff Liebermann wrote:

On Wed, 14 May 2025 00:16:37 GMT, cyclintom <cyclintom@yahoo.com>
wrote:
 

On Fri May 9 06:36:05 2025 zen cycle  wrote:

>
Yup: "Once located I use a marking pen to make an X but the glue lifts
that off and I end up putting the patch in the wrong spot."
>
Can't say I've _ever_ heard of that problem

>
Only you could mark the tiny leak with an "X"\, put a spot of glue on it, rub the glue around and then be able to see the "X" through the glue carrier.

 Tom... That was the method that YOU mentioned (except for where you
added the "rub the glue" part) which was not included in YOUR original
tale of woe[1].
 <https://www.novabbs.com/tech/article-flat.php?id=125411&group=rec.bicycles.tech#125411>
"Many of these leaks are so slow that they are only a bubble every
second. Once located I use a marking pen to make an X but the glue
lifts that off and I end up putting the patch in the wrong spot."
 

Tell us again about how you averaged over 17 mph for an entire year of riding. I particularly like that one.

 Are you shopping for a topic change?
 [1]  You didn't mention the color of the "marking pen".  A black pen
on a black inner tube doesn't work.  The found ink in a common
"marking pen" will smear if you try to cover it with a solvent based
blob of glue.  See "check washing" for how it's done.  You might have
a chance if you use "gel" glue, which does not smear with solvent.  It
seems to me that you've never actually done what you're suggesting.
 

I have no doubt that he's marked the hole with a pen then wiped glue on it removing the ink. The problem is, that isn't the correct method for patching a tube. He's leaving out one critical step. It's so critical that every tube patch kit comes with the item needed to perform the step. The fact that he can wipe the ink off with the glue and has complained that the patches don't stick well are proof that he isn't doing that step, not tometion the fact that if he was performing that step he wouldn't be able to see the ink mark anyway.
I'm sure you know what that step is, as does anyone who has ever patched a tube. I'm willing to let him flounder a bit until he figures it out.
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