SpudFiles

I'm sure this is out there somewhere, but i've searched the forums and can't find the answer.

How does one attach a schrader bike valve to an endcap?

more specifically, what brand of sealant do I need to use?

I have cut the valve out from a bike tire and I was thinking maybe epoxy putty to make a base around it then jb weld?

thanks for input!

thats what i do and it works just fine. just make sure that you put it in the inside. you dont need the putty, i just use jb weld and it hold just fine and doent leak.

No, you don't want to do that. Go to your local Ace hardware store and in the section where the pneumatic parts are, buy a threaded schrader valve. Tap a hole and don't forget to use teflon tape.

I use pop-in valves. Drill a hole (I think mine was 5/16'') so its just big enough for the "stem" of the valve to fit through. It should make a natural seal. Also, blue tac makes a great seal.

Talking from experience, I know that automobile pop-in valves can be a mighty bitch to install. Thats why I recommended the threaded schrader valves.

Cool, and the threads / teflon tape should be enough to hold like 100 psi of pressure?

Should be ok up to around 200 psi.

benstern wrote:Talking from experience, I know that automobile pop-in valves can be a mighty [female doggy] to install. Thats why I recommended the threaded schrader valves.

Not really. I just drilled a hole, popped it in, and I've taken it to 80 psi (which is like the highest I can go with my bike pump) and it hasn't leaked. It does take a little pushing, but not as much as shoving a pop-in valve through the top of a coke bottle. Few tools except brute force and determination can help you there.

I think what Benstern said about the threaded shrader valve is and would be the best thing to use. I know some say it's not hard to put the pop-in valve in and that it is easy to put in with some elbow grease so to speak but for safty sake I would use the treaded schrader valve. It's not hard to put it in and its not as flimsy as a pop-in valve. Just drill a hole tap the hole to except the treads from the schrader valve, teflon the treads and put it in. I'm sure you won't regret it, just be sure to put it were two pieces of pvc join (IE a glue point in the back) sorry for this being so long, but I don't want people to be hurt Benstern Is completly right!

dude, i picked up this schrader valve from the local tire fitting shop for 4.50AUD:


works a treat easy as to install. just drill a snug hole, and insert the schrader.

final product:

That set up is pretty much the same concept that Benstern and me were talking about. That will work too because it is techniclly bolted it good job on it and it looks good too

I think a lot of people struggle with the pop in ones because they think they are fragile, the brass part of the stem goes all the way to the larger rubber grommet end, so just grab the thing with a pair of channel locks (like above) and pull it through, also, I think a lot of people make the hole to small, the pop in valves I got from walmart were for 1/2" holes, so it was a cinch.

And I think these are safer, as if they do fail, the atleast they are coated with rubber and will probably not hurt as bad as one of those cool thread in ones.

Joey (24 posts to go...)