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Old Mar 21, 2011, 09:57 PM
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Joined Jan 2010
215 Posts
Question
Flex Shaft End Play

Hey Guys,

I finally got my first FE in the water...its not my Cat in build but I acquired a nice Miss Vegas Deuce by the name of "Mis-Behavin'" and I love it...

Question though, should I leave some end-play on the prop end of the flex-shaft where it would touch the strut??? I have it snugged up but read some one mentioned the flex shaft swells or contracts???

Thanks for any help,
Brian
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Old Mar 21, 2011, 10:15 PM
Memento Mori
Diesel6401's Avatar
United States, NC, Charlotte
Joined Sep 2009
2,932 Posts
There should a gap between the prop drive dog and the strut ( gap should be approx the diameter of the cable.)
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Old Mar 21, 2011, 10:39 PM
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For my education, the prop shaft swells when twisted by the motor thus shortening its effective length?

Thanks for the info.
Brian
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Old Mar 21, 2011, 11:01 PM
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end play

Depends on width of cable. Power of motor and size of boat. Smaller the cable, requires more space as it winds up more do to size. The .150-.187-.250 still need space and when using these sizes, plenty of power is requires, about 3mm. Forgot prop size enters here too. Must be getting late, can't keep thoughts organized.
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Old Mar 21, 2011, 11:09 PM
I feel the need for speed!
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Southern U.S.
Joined Jun 2008
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I believe this is a vid i shot of your new boat a few months back.........nice boat!

Miss Behavin' 32" Hydro (0 min 54 sec)
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Old Mar 22, 2011, 07:16 AM
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Canada, ON, Markham
Joined Aug 2008
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Quote:
Originally Posted by RG-sailor View Post
For my education, the prop shaft swells when twisted by the motor thus shortening its effective length?

Thanks for the info.
Brian
Correct, as power is applied it shrinks in length. I generally leave the diameter of the stub shaft for space to be safe.
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