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 Catalina/Capri 25/250 Sailor's Forums
 Catalina 25 Specific Forum
 20 or 25" shaft		  New Topic  Topic Locked
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frich
Captain

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USA
418 Posts
Initially Posted - 11/28/2004 :  10:44:23  Show Profile  Visit frich's Homepage
Hi All

Just wanted to get some feedback with regards to going to a 20" shaft from a 25 I presently have.

I operate on the great South Bay of LI, where I do get choppy conditions. I do have an adjustable bracket. Even so when down (1) position from the bottom the motor does cavitate on occasion. Going all the way down I think would make it un comfortable to operate from the cockpit.

Thanks
Frank R
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Bill Holcomb
Admiral

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USA
769 Posts
Response Posted - 11/28/2004 :  11:21:25  Show Profile
Hey Frank,

The conventional wisdom is to use a long a shaft as possible. If your 25" shaft cavitates your motor occasionally, the 20" shaft will cavitate a lot - possibly burning out your water pump prematurely.

Bill Holcomb - C25 Snickerdoodle #4839
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ClamBeach
Master Marine Consultant

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3072 Posts
Response Posted - 11/28/2004 :  11:25:15  Show Profile
IMHO: A 20" shaft outboard won't cut it on anything but flat calm waters.

I'd strongly recommend getting a XL shaft model... you'll be kicking yourself later on if you don't.
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frich
Captain

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USA
418 Posts
Response Posted - 11/28/2004 :  12:17:15  Show Profile  Visit frich's Homepage
Thanks Guys

I respect your opinons and will go with a 25" (there goes the Ebay Bid)

Frank
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lcharlot
Master Marine Consultant

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Antigua and Barbuda
1301 Posts
Response Posted - 11/29/2004 :  08:09:07  Show Profile
"Quiet Time" came to me with a 20" Honda 7.5, and while the engine worked adequately on Folsom Lake, when I would take the boat down to San Francisco Bay or the San Joaquin River delta, it became obvious that 20" was not enough as the prop would cavitate in even relatively small waves. I replaced the old Honda with a 25" shaft Yamaha 8 a few months ago, mostly to get electric start, and it seems to work well, although I have not been able to try it out in choppy conditions yet, due to the premature closure of Folsom Lake Marina last July (the marina closure actually took place before I got the new motor installed).
Edited by - lcharlot on 11/29/2004 08:10:42
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.