Johnson rotary valve bearings

[George Emmanuel]

Randy,
Sealed bearings are not shielded bearings!—Two different items.
And David Bartlett, the fuel mixture does not pass through those bearings. Originally they were greased.The bottom one has a felt wick and condensation created when running has a tendency to settle in the bottom bearing, which is not good long term.
I suggest and use sealed bearings.

George

[dmbono]

I did buy sealed bearings. They probably didn’t have reliable seals in 1929.

[Randy in Tampa]

quote George Emmanuel:

Randy,
Sealed bearings are not shielded bearings!—Two different items.
And David Bartlett, the fuel mixture does not pass through those bearings. Originally they were greased.The bottom one has a felt wick and condensation created when running has a tendency to settle in the bottom bearing, which is not good long term.
I suggest and use sealed bearings.

George

Thanks for correction on terminology George 😉

[Author]

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