Sealing a slow leak?

[Bansh88]

I put new tires on my 70 recently.  These have 2 piece wheels and I did put a new gasket with RTV between the halves.  I have a slow leak.  4 days or so to get low.

I made sure the beads were clean and it has a new valve stem.

What can/should I do?  I have starch which I hear a lot of you talking about.  Would a few ounces fix the leak?

 

[MWB]

Starch should seal up the slow leak just fine.

 

[Bobalos]

My first thought would be to bubble it & find out where the leak was, but ultimately I would likely just throw starch in it, regardless of leak location.  LOL.

I starched the tires on my generator.  LOL. 

 

[Fireballsocal]

If you can submerge the whole tire, I'd blow it up to 25psi and find out where it's leaking then go from there. If it's a valve stem, easy to fix. So is a bead with grit/rust in it. Just finding the leak is the first priority. 

 

[Dockmaster]

You usually don’t have to submerge it to find the leak. Just mix up a spray bottle with soapy water and soak it down with it. The leak will show bubbles. If it’s not simple like valve stem or similar, I would use starch. Starch has worked better for me than anything else.