Steve, Think I have an extra housing from an Airmar DST 800. Let me know if you want me to look for it.
Joel On Thu, Feb 13, 2014 at 1:21 PM, Stevan Plavsa <stevanpla...@gmail.com>wrote: > I had a whole episode last spring after launch where the new speed > transducer was leaking. We had a terrible experience at the boatyard where > we launched and once the boat was splashed I wanted to get the hell out of > there ASAP. I checked "all" the thru-hulls and none were leaking. Fired up > the A4 and took off. Half way back to our club I asked my girlfriend to > check the bow where the new speed transducer was, I had forgotten to check > that one! And though the water level in the bilge remained low I thought > "better safe". She yells from the v-berth "it's full of water here". I > figured she was joking. Once it was determined that she wasn't joking my > heart sank. I didn't want to have to pull the damn boat again! The yard > would rape me! > > I was puzzled (still motoring around at this point trying to figure out > what the hell to do). The limber hole from the bow section to the bilge was > glassed over! argh > Hence no indication from the bilge pump. > > Long story less long, the transducer was leaking between the housing and > the paddlewheel plug. WTF?!? I knew that I had bedded the housing/thru-hull > properly (I'de gone through that exercise with the other thru-hulls the > season prior) and inspection confirmed. Twisting the ducer in the housing > yielded changes in the amount of water intrusion. Anyway, I managed to get > the leak down to a reasonable "won't sink the boat overnight" level and > called it a day. Came back early in the morning and bailed out the bow > compartment and fixed the leak with oversized o-rings I got at Home Depot. > I could still make it weep by twisting the ducer so I found a nice position > where it wouldn't leak and left it there. Not ideal. I plan to replace that > housing with the bronze offering before launch. I think because the hull is > curved there the housing may have deformed ever so slightly causing the > o-rings not to seal properly. Larger o-rings are not an elegant and > worry-free solution so I'll caugh up the dough for the bronze > thru-hull/ducer. > > I probably already posted this stupid story here before ... > > the point being that I'm not excited about more holes in the boat :) > Also work. Drilling and stuff, that's work! I have enough work to do on > the boat. I'll try the silicone first, it's easy enough. If that doesn't > work I'll drill. > > Thanks all. > > Steve > www.sv-suhana.com > Toronto > > > > On Thu, Feb 13, 2014 at 11:34 AM, Rich Knowles <r...@sailpower.ca> wrote: > >> Correct! :) >> >> Rich >> >> On Feb 13, 2014, at 12:25, "dwight" <dwight...@gmail.com> wrote: >> >> I would not hesitate to put a plug in any hole that was letting water >> into the boat, would you? One less hole in the hull if it is not needed >> is a good thing by my standards, and that says nothing about doing these >> necessary holes in the right way...just one less means one less to do right >> >> >> ------------------------------ >> >> *From:* CnC-List >> [mailto:cnc-list-boun...@cnc-list.com<cnc-list-boun...@cnc-list.com>] >> *On Behalf Of *Rich Knowles >> *Sent:* February 13, 2014 12:11 PM >> *To:* cnc-list@cnc-list.com >> *Subject:* Re: Stus-List Drill another hole? >> >> >> >> A through hull or hose can fail. Hence the plug. Not to fill a hole in >> the hull itself. >> >> Rich >> >> >> On Feb 13, 2014, at 11:51, "dwight" <dwight...@gmail.com> wrote: >> >> Still, these holes are one of the main reasons for carrying plugs...I >> have never had to use a plug >> >> >> ------------------------------ >> >> *From:* CnC-List >> [mailto:cnc-list-boun...@cnc-list.com<cnc-list-boun...@cnc-list.com>] >> *On Behalf Of *Rich Knowles >> *Sent:* February 13, 2014 11:15 AM >> *To:* cnc-list@cnc-list.com >> *Subject:* Re: Stus-List Drill another hole? >> >> >> >> Re plugs: I've had 14 boats with many holes in each of them and have yet >> to have a problem other than stuck valves. I have installed many >> transponders in all kinds of boats, and I have yet to see a properly >> installed through hull transponder leak or cause any problems. I think the >> fears of drilling holes in hulls are unfounded. Just sayin'... >> >> Rich >> >> >> On Feb 13, 2014, at 11:04, "dwight" <dwight...@gmail.com> wrote: >> >> That is correct, so it looks like an upside down mushroom when mounted >> in the silicone...use a good size glob of silicone and make sure there are no >> entrapped air bubbles in it before you attempt to mount the transducer...as >> the excess squeezes out some will rise to just about the edge of the >> mushroom....I would guess the thickness of silicone between the transducer >> and the hull when you have it mounted won't be much but it must not contain >> entrapped air bubbles, just won't work well if it does...I simply held mine >> down hard for a few minutes not until the silicone had fully cured but >> within a day the silicone had cured. My boat was in the water when I did >> the mount so I was able to get instant feedback. Holes in the hull are the >> primary reasons we all carry plugs >> >> >> ------------------------------ >> >> *From:* CnC-List >> [mailto:cnc-list-boun...@cnc-list.com<cnc-list-boun...@cnc-list.com>] >> *On Behalf Of *Stevan Plavsa >> *Sent:* February 13, 2014 10:51 AM >> *To:* cnc-list@cnc-list.com >> *Subject:* Re: Stus-List Drill another hole? >> >> >> >> Dwight, I believe the ST-60 uses the same transducer as the ST-40 that I >> have. Yours is designed to be used as a thru-hull correct? >> >> >> >> Steve >> >> www.sv-suhana.com/ >> >> Toronto >> >> >> >> >> >> On Thu, Feb 13, 2014 at 9:38 AM, dwight <dwight...@gmail.com> wrote: >> >> Steve >> >> >> >> I have a Raymarine st60 system. The transducer is the ordinary thru hull >> unit. A few years back I cleaned the inside of the hull well with acetone >> in the spot I wanted to mount it and simply plunked it down in a big fresh >> glob of GE 100% silicone sealant...you have to plunk it down on a slant and >> hold it down for a while so as to squeeze out any air bubbles that might >> get entrapped. It has worked very well for the last 4 years. You may be >> able to do something like that with your new transducer when you mount it >> up forward and avoid making another hole. I plugged the hole that mine was >> in before I did the inside mount. Mine measures to 200 feet depth at least >> but in depths greater than 200 it fails to work so you do lose some range >> if that is important to you, 200 feet was fine for me. Anyway you could >> try it all out without drilling anymore holes and you could also mount the >> old one that way and avoid having to use mineral oil. >> >> >> ------------------------------ >> >> *From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of *Stevan >> Plavsa >> *Sent:* February 13, 2014 10:07 AM >> *To:* cnc-list@cnc-list.com >> *Subject:* Stus-List Drill another hole? >> >> >> >> Hi All, >> >> >> >> I installed depth and speed last season and I re-used the old >> through-hull transducer (no hole) and that works fine. However, that >> transducer is located under the starboard settee (the one forward of the >> nav station) and because it needs to be encased in mineral oil (or whatever >> it is in there) it's in a big piece of pipe right in the middle of that >> storage area. Needless to say, I don't use that storage area very much and >> I would like to. >> >> >> >> I've also had some problems with the depth instrument, sometimes it stops >> reading and I suspect the old cable or the transducer. >> >> >> >> My thinking is to drill a new hole in the hull up forward (currently it's >> next to the keel), and install the thru-hull that came with the unit and >> run the new wire. I'm hoping that this will achieve two things: >> >> >> >> better working depth instrument (with full range) >> >> a usable storage compartment (valuable on my small boat) >> >> >> >> Now my question to you all: is it worth the trouble? Drilling a hole in >> the boat is typically avoided and I already have the following holes: >> >> >> >> Engine raw water intake >> >> Two scuppers >> >> Galley drain >> >> Head drain >> >> Head intake >> >> Speed thru-hull >> >> >> >> That would make eight with a new hole. Too many? >> >> I've replaced almost all of the thru-hulls and original gate valves with >> new bronze thru-hulls and proper seacocks. >> >> >> >> Thanks, >> >> >> >> Steve >> >> Suhana, C&C 32 >> >> Toronto >> >> >> >> >> _______________________________________________ >> This List is provided by the C&C Photo Album >> http://www.cncphotoalbum.com >> CnC-List@cnc-list.com >> >> >> >> _______________________________________________ >> This List is provided by the C&C Photo Album >> http://www.cncphotoalbum.com >> CnC-List@cnc-list.com >> >> _______________________________________________ >> This List is provided by the C&C Photo Album >> http://www.cncphotoalbum.com >> CnC-List@cnc-list.com >> >> _______________________________________________ >> This List is provided by the C&C Photo Album >> http://www.cncphotoalbum.com >> CnC-List@cnc-list.com >> >> >> _______________________________________________ >> This List is provided by the C&C Photo Album >> http://www.cncphotoalbum.com >> CnC-List@cnc-list.com >> >> > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > > -- Joel 301 541 8551
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