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1940 K Engine prop shaft

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Roger Smith
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1940 K Engine prop shaft

Post by Roger Smith » Mon May 29, 2017 2:20 pm

What is the correct size nut for the propeller on a 1" shaft?

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island time
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Re: 1940 K Engine prop shaft

Post by island time » Mon May 29, 2017 7:42 pm

Hi Roger,
I just measured a spare 1" shaft that I have and that shaft has a 3/4-10 nut.

Craig Wilson
Craig Wilson
Churchville, NY
Alexandria Bay, NY

1968 23' Chris Craft lancer
1971 31' Revelcraft
1988 25' Fourwinns
1972 19' Chris Craft Lancer
1957 18' Chris Craft Sea Skiff
1958 18' Chris Craft Sea Skiff
1968 23' Chris Craft Commander

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Brian Robinson
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Re: 1940 K Engine prop shaft

Post by Brian Robinson » Mon May 29, 2017 7:54 pm

The thread varies depending on who made the shaft. Some fine, some course, some odd. Better to check with a thread gauge.
-Brian
1923 Hackercraft 23' Dolphin #03
1938 Gar Wood 22' Streamliner #6256 Empress
1952 Chris~Craft 19' Racing Runabout #363 Thunderstruck
Robinson Restoration, LLC (760) 468-1009

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