Tire pump

[Will_Vanderburg]

Spent some time refurbishing my tire pump. Cylinder all smooth and shiny.

Forgive the modern hose clamps. I cleaned the hose to tube connection. It was clogged tight. It pumps air and does inflate a bicycle tube. There’s no ball bearing in it. And I didn’t remove the valve plunger.

What color should the base be? Right now it’s red oxide.

[Steve Jelf]

Don't bet the farm on this, but I think all black would be correct. I left the tube polished brass, but I think it's incorrect. My version of "natural" wheels.

I was pleasantly surprised to find that the local Ace Hardware had the old style compression clamps you loosen with pliers to install.

These pumps were made without a check valve and with a chuck that had no center post, relying on the tube's stem valve to keep the pressure in the tire. I don't understand how your pump can work with a center post in the chuck.

[Will_Vanderburg]

There’s a tiny hole in the side of the center post of the chuck

[Will_Vanderburg]

Steve,

Can you post a pic of the clamps you speak of?

[Steve Jelf]

At the pump end of the hose is a clamp from the hardware store.

At the other end I have twisted baling wire. I'm not sure why. I probably broke the real clamp trying to install it.

[Will_Vanderburg]

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At the pump end of the hose is a clamp from the hardware store.




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At the other end I have twisted baling wire. I'm not sure why. I probably broke the real clamp trying to install it.

When I removed my chuck to clean it, it was secured with wire as well.

[Steve Jelf]

When I removed my chuck to clean it, it was secured with wire as well.

The standard Ford repair kit.

[Will_Vanderburg]

I took the pump again and tried to pump up a hand truck tire. It does pump it up, but I do notice there is some air being sucked back out of the tire. A small amount.

There was no ball bearing in the pump but the chuck does have the center post. I’m going to get a bearing and see if that stops the leakage.

I really don’t want to destroy an original chuck. I do know chucks are available without the center post. Maybe I’ll try that.

[Allan]

As Steve said, the centre post is there to depress the valve core centre to allow air to enter. While it is depressed any air pumped in is free to escape.
You need to either remove the centre stem in the chuck, or fit a non return valve at the pump end of the hose.

Allan from down under.

[Steve Jelf]

I do know chucks are available without the center post.

Yes, I found them online pretty easily.

[TXGOAT2]

I believe the tire pump would be more efficient with a check valve at the pump end of the hose. That way, you would not lose the small volume of compressed air in the hose with every stroke.