Ken, you are removing all the mystery and potential for disaster from the exercise:). The glass is pretty thick there, but it's worth a try.
Rich > On Nov 5, 2013, at 16:28, Ken Heaton <kenhea...@gmail.com> wrote: > > How about two small powerful magnets, one on the inside taped in place and > one on the outside? The one on the outside will locate the one on the inside > pretty easily. Move it around until you find the sweet spot. > > Look for Rare-Earth Circular Magnets like these: > http://www.leevalley.com/en/wood/page.aspx?cat=1,42363,42348&p=32065 > > Ken H. > > >> On 5 November 2013 16:04, Rich Knowles <r...@sailpower.ca> wrote: >> Peter: you should be able to see where the lead/fibreglass join is on the >> outside. If you have a sump at all, and I'm sure you do, your drill should >> emerge at or just above the juncture. If you don't like the ⅛" hole, plug >> it. No big deal. >> >> Rich >> >>> On Nov 5, 2013, at 15:55, "Petar Horvatic" <phorv...@gmail.com> wrote: >>> >>> Rich, >>> >>> your explanation is great, it makes perfect sense. So I got the drainplug, >>> and I went over there last weekend to look at the possible location. I >>> don’t have a lot of confidence that if I drill horizontally sideways, from >>> the lowest point in the bildge, (what I believe you describe as the 90 deg >>> angle), I will actually end up perpendicular to the bottom surface on the >>> outside. I don’t know how deep LF38 bildges are but on 38MkII, bildge is >>> very shallow. If I end up higher then intended it could be very bad as the >>> bottom profile quickly turns from vertical to horizontal. My intuition >>> suggests that I might need to drill at like 30 or 45 deg angle from >>> horizontal in order to end up perpendicular to the bottom surface on the >>> outside. Maybe I just need to overcome my fear, but I wish there is a way >>> to find out what lowest point in the bildge projects to on the outer side >>> of the hull without actually drilling a pilot hole. Maybe a pic of an >>> actual 38MkII , and not a landfall or ideally a cross-section drawing of >>> the keel-hull join showing hull thickness would indicate exactly how to >>> drill. >>> >>> >>> >>> Petar Horvatic >>> >>> Sundowner >>> >>> 76 C&C 38MkII >>> >>> Newport, RI >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Rich >>> Knowles >>> Sent: Wednesday, October 23, 2013 4:06 PM >>> To: cnc-list@cnc-list.com >>> Subject: Re: Stus-List Installing a garboard drain plug on 38MkII >>> >>> >>> >>> Peter: Using a 90 deg. angle drill, I drilled a 1/8" pilot hole out from >>> the interior of the boat at the intersection of the bilge wall and floor at >>> the lowest point in the bilge. >>> >>> >>> >>> I then used a Forstner bit the same diameter as the outside of the flange >>> of the drain casting to create a recessed hole in the hull exterior the >>> depth of the thickness of the flange plus a bit for caulking. >>> >>> >>> >>> Once the outer hole was drilled, I drilled the hole for the neck of the >>> drain casting deep enough to allow the casting to sit flush with the hull. >>> I then used a 1/2" drill at an up angle into the bilge floor to create the >>> water passage from the bilge floor into the casting. Three 1 1/4" #10 flat >>> head self tapping screws and some 5200 hold and seal the casting in place. >>> I note that the flange straddles the hull/keel joint with the majority of >>> the fitting and two of the three screws in the hull. The third screw is in >>> the lead. No problems to date. That includes dropping and replacing the >>> keel during my recent post grounding repair. >>> >>> >>> >>> There are nylon or bronze plugs with hex sockets available if the notion of >>> drag caused by the protruding square bolt head impeding perfect water flow >>> bothers the racing mentality at all. Personally, I can't tell the >>> difference:). One could also cut the bolt head off the threaded portion and >>> saw a kerf for a large screwdriver in the end of the threaded bit. >>> >>> >>> >>> That little gadget is one of the best additions to the boat as it ensures >>> the bilge dries out completely every haul out and stays that way. I leave a >>> large note to myself to replace the plug in the spring:) >>> >>> Rich Knowles >>> >>> Indigo >>> >>> 1981 LF 38 >>> >>> Halifax. NS >>> >>> >>> On Oct 23, 2013, at 15:16, "Petar Horvatic" <phorv...@gmail.com> wrote: >>> >>> Does anyone have pics or advice on how best to install a garboard drain >>> plug. >>> >>> Shallow bildge and external lead keel make it pretty difficult to have >>> something that is flush on the outside yet encompass the lowest point in >>> the bildge to allow water to drain. >>> >>> >>> >>> Petar Horvatic >>> >>> Sundowner >>> >>> 76 C&C 38MkII >>> >>> Newport, RI >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> _______________________________________________ >>> 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
