[C320-list] Fouled Prop?

[SCHWARTZ]

Ahoy all.....I have been painting my prop for many years, lately using hydrocoate sr with very good antifouling. I have not noticed any reduced performance motoring from before it was painted. I do dive under the boat frequently, and a light rub with a handeled kitchen sponge gives me a clean hull and prop. 
> On July 15, 2019 at 12:04 PM Gene Gammon <captaingene at msn.com> wrote:
> 
> 
> I bought the Lanacote also but it doesn't apply well under water with partial painted or prop coats or after scraping off barnacles.  It may work well if applied out of the water on freshly sanded bronze prop and shaft.  I have used Lanacote since it was introduced into the US from Australia in 1983 by a friend.  It penetrates metals and will absolutely stop rust and corrosion.  It was used by the Americas Cup teams on their rigging attachments where SS was attached to Aluminum to stop dissimilar metal corrosion and marrying..  Not a lubricant as some say.
> 
> I used to advise owners, if not using their boats often, to dive under with a plastic garbage bag filled with fresh water an a little Clorox.  Fill it with a hose while you are in the water :-)
> Dive down and open around the prop and use a wire twist tie to hold closed.  Now your prop can't get any growth.  When you are ready to go again just start and put in gear and it will emulsify the bag(they are supposed to be biodegradable now) and you are on your way.
> 
> Your other option is a monthly diver or run your engine in fwd and reverse once a week in the slip.
> 
> 
> 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 Joe Geiger <joe.geiger at gmail.com>
> Sent: Monday, July 15, 2019 10:54 AM
> To: C320-List at Catalina320.com
> Subject: Re: [C320-list] Fouled Prop?
> 
> Since the Petit stuff is not good, what does work?  Or is diving under the boat once a month to scrape off the prop and shaft the best protection?  I have some Lanocote but have heard mixed reviews of its effectiveness.
> 
> Joe
> --
> Joe Geiger
> Vega #722
> Greenwich Cove, RI
> 
> 
> 
> > On Jul 15, 2019, at 10:17 AM, Gene Gammon <captaingene at msn.com> 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
> >>
> >>
> >>
> >>
> >>
>