s5fskzfv

I have schrader valves on my bike tires and I use a floor pump to add air. When I attach the pump head to the tire valve there is a lever to lock the pump to the tire. When this lever locks there is a "post" or "rod" inside the pump head that presses against the tire valve and opens the tire valve and you hear a brief hiss when you do this.

I want to get a pump or a replacement part so that that "post" or "rod" inside the pump head is made of metal. Because the one I have is plastic and it is worn down and doesn't work well (see photo) - I lose a lot of air when I am trying to get the pump head off the valve.

I would like to be able to place the pump head over the tire valve and then when I turn the lever on the pump head it opens the tire valve at the same time it locks the pump head to the tire valve. The reason I want to do this is so that when I take it off, releasing the lever allows the tire valve to completely close so I don't lose air while I am trying to get the pump head off the tire valve.

Can someone tell me either what brand and model of pump has a metal post in the pump head? Or what is the correct term for that part so I can try to find one on-line?

Thanks in advance.

rumrunn6

I call it a "chuck". you don't necessarily have to replace the whole pump, just cut the line & slice in a new chuck. I had to modify my current electric pump to have the kind of chuck I wanted (when the old pump died). My current chuck is like yours but works well. I have learned, tho, not to press it too far onto the valve, so that's it's easier to remove, thereby losing less air. now, when I release the lever, there is a small burp, but the air doesn't continue to flow out. maybe you can try that technique? parts can be found at places like The Home Depot & automotive parts stores

here's one

& on Amazon

I know you're a hand pump guy, but this is my home pump. not suggesting you need an electric pump, just showing you how I spliced in what I wanted. I used the chuck end & hose from another pump that I liked but it had died, then got more pneumatic hose & connectors at THD in their air tool aisle. they've got little drawers with smalls parts, also some on wrapped cardboard packages. like this barbed coupler



this is the pump I scavenged the chuck & hose from

s5fskzfv

That is what I want it to do. But if the part inside the chuck that pushes open the tire valve is made of plastic I am afraid it will wear out. I think I remember many years ago I had a bike pump where the part inside the chuck that pushes open the tire valve was metal. I would like to get one like that if possible. It is impossible to tell from on-line descriptions what it is made from so I am hoping someone in this forum can recommend something.

HillRider

I have a Bontrager "Charger" floor pump with a dual use (Schrader and Presta) head and the center post in it is made of brass. I don't know if you can buy the head as a separate item.

Of course another solution is to use grommets or bushings in your rim's valve holes and use Presta tubes.

JohnDThompson 

A couple years ago the chuck on my Meidai floor pump wore out. I replaced it with this chuck from Silca:


https://silca.cc/collections/floor-p...schrader-chuck

Works pretty well, all-metal construction, easy on and off the valve, not too pricey.

Iride01 

You can buy replacement chucks or hoses that include the chuck for a little or a lot. Or just buy a new 10 dollar floor pump for the same price.

https://www.jensonusa.com/Floor-Pumps

https://www.nashbar.com/search?cID=14901&s=floor+pump

rumrunn6

understood

Retro Grouch 

Of all the Presta vs. Schrader arguments, the most convincing to me has to do with how you inflate your tires.

If you use a hand pump, I find Presta valves with their simple poppet valve much more convenient to use.
If you use an air compressor, Schrader valves with a connection that you just push against rather than thread onto the valve stem is much faster and more convenient.