[C320-list] Fouled Prop?

[Gene Gammon]

Joe,

The only thing that works for sure is a bag of water over the prop or a diver to scrape.  Even my diver told me the best and most expensive products quit after a few months.  He also said that  the  cheapest being Pettit is the worst product.
He put Lanacote on mine after scraping but a month later he said a few places were showing less growth but didn't hold well on painted surfaces.


Gene Gammon, Capt.

727-644-8009

www.gcyachts.com<http://www.gcyachts.com>

www.irwinyachts.com<http://www.irwinyachts.com>

________________________________
From: C320-list <c320-list-bounces at lists.catalina320.com> on behalf of Charles Holbrook <charlesholbrook at ymail.com>
Sent: Monday, July 15, 2019 5:54 PM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Fouled Prop?

Joe:
Please be sure not to dive on the boat in the marina in case some dock neighbor has electrical problems.  I experienced your symptoms about 3 years ago and found I had line wrapped around the shaft.  I was able to clear it by putting it in reverse long enough to free up the shaft and then forward.  Later, I was able to dive on the boat and cut the line loose.
Good luck
Charlie Holbrook #192
    On Monday, July 15, 2019, 05:44:19 PM EDT, Scott Thompson <surprise at thompson87.com> wrote:

 So what do you recommend as an alternative Gene? Are they all crap? The
Petit hi-zinc paint (which I assume is what we are talking about) has
been more effective for my location and use pattern than anything else
I've tried, but it's true that if you let the boat sit then stuff will
still grow on it. I switched to the Petit paint after several years
trying to use Prop-Speed. It required professional application and was
very expensive and it didn't protect my prop from serious growth. (Maybe
it would have worked better if I used the boat every week.) As a result,
most of it got scraped off along with the barnacles after about 6 weeks.
At least the Petit stuff is relatively cheap.

On 7/15/2019 10:17 AM, Gene Gammon wrote:
> I used the Pettit prop coating.  Complete crap.  I am in the boat business and contacted the Petit rep.  He told me you have to dive and scrape monthly.  I could have done that without the cost of the Pettit junk. Fouled heavily in two months during the winter in Fla.
>
>
> Gene Gammon, Capt.
>
>
> ________________________________
> From: C320-list <c320-list-bounces at lists.catalina320.com> on behalf of Doug Treff <doug at treff.us>
> Sent: Monday, July 15, 2019 9:54 AM
> To: c320-list at lists.catalina320.com
> Subject: Re: [C320-list] Fouled Prop?
>
> Joe,
>
> Not sure what area you're in, but the water is pretty warm here in MD and the critters are growing fast. Check your prop and shaft first. It doesn't take long even when the proper coatings are used.. An idle boat is ripe for barnacles and other growth.
>
> Cheers,
>
> --
> Doug Treff
> doug at treff.us
>
> On Mon, Jul 15, 2019, at 9:44 AM, Joe Geiger wrote:
>> I returned to my boat this weekend and took her on a short cruise.
>> When I set the engine to cruising speed 2800 RPM I noticed that my
>> speed was not what is usually is and I heard noises from the prop and
>> prop shaft when running it at lower RPMs or in reverse.  The last time
>> we took her out was a couple of weeks ago and I didn’t notice any
>> issues.
>>
>> When we got back to the mooring I checked the dripless coupling and I
>> could feel the heat coming from the engine and prop shaft.  The shaft
>> was hot to the touch.
>>
>> Before launching this season I sanded and prepped the prop and shaft
>> with Petit prop anti-fouling paint and then the boat staying in the
>> slip because had my standing rigging replaced which took about a month
>> due to the rigger’s schedule and back ordered parts. I changed out the
>> transmission fluid and engine oil at the end of last season and checked
>> the levels which seem fine. Also… the cooling system for the motor
>> seems to be working fine because the temp gauge was reading normal  The
>> boat has been sitting… i.e. we have mostly been doing work on it since
>> it went in the water in May.
>>
>> I plan to dive on it and check for fouling but was wondering if these
>> symptoms are the result of something else.  Any ideas?
>>
>>
>> Joe
>> --
>> Joe Geiger
>> “Vega” Hull #722
>> Greenwich Cove, RI
>>
>>
>>
>>
>>
--
Scott Thompson
Surprise, #653