External check valve: Don't waste your money.

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Steve Jelf
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Joined: Fri Jan 04, 2019 9:37 pm
First Name: Steve
Last Name: Jelf
* REQUIRED* Type and Year of Model Ts owned: 1923 touring and a few projects
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External check valve: Don't waste your money.

Post by Steve Jelf » Sat Sep 04, 2021 5:42 pm

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...making them difficult to use.

No. As usually sold, they are impossible to use. Why? Because they are sold with a modern chuck on them, not a Model T era chuck. How can a pump without a check valve possibly work? By relying on the valve in the tube stem to perform that function. A modern chuck has a center post that holds that valve open, rendering it inoperative. Install an old style chuck without a center post on your pump, and it works just as well as it did a hundred years ago.

http://dauntlessgeezer.com/DG115.html
The inevitable often happens.
1915 Runabout
1923 Touring