A continuation of this thread around my leaking keel
. Was trying to narrow down the pathway for the leak in/out of my bilge
. Boat is an old Viking 28, built by C&C
40 years ago. A very shallow bilge
, i'll post a couple of pix. Here's the drill....
Isolated each bilge section between stringers and flooded with acetone, then climbed down the ladder and stood next to the stern of the keel
where the leak was trickling out. Turned out to be one section only (sternmost) with two 1/2" diam studs/nuts. Glass layup
in that region looks like a couple of bits of cured hull
were bonded onto the actual hull
, under say 3 stringers for about two feet, only near the stern end. Poor fitting of extra hull pieces left gaps on each edge, that had been covered in matt and was all delaminated.
So I isolated each side and poured in more acetone. Starboard section leaked out the keel joint in half a minute. Starboard pour showed no leaks
. Getting closer. Now here's the rub, being a newbie boat owner and having read that keel nuts should be torque periodically, I decided that was worth a try. 10 nuts, all poorly torqued down, so I brought them back to correct C&C
spec of 80 ft-lbs using my trusty torque wrench. Got 1-3 turns on each to hit that setting. Repeated the acetone bath and now NO LEAK. No sign of an outbound keel joint leak at all. Happy daze in every sense.
Here's the question: Am I done here? I'd used acetone to prep/degrease the "crack" prior to trying to inject some resin down, but if the acetone can't get through after retorquing the keel nuts I can't imagine how much better I can make it without the huge effort of dropping/rebedding the keel.
Second question: Cast iron keel, very shallow keel stub in hull, and a good layer of filler faired over everything. Took it down to bare metal/glass around the leaking stern section of the keel joint. Again, have a pic to post. My inclination is to grind it/blast it until shiny, butter the dug out keel seam with epoxy/HD406 filler, then put a couple of layers of glass over the region to seal the outside. After than, likely about 1/2" filler to fair. Is this good practice? Yes, I'd love to strip the entire keel to bare shiny iron and apply 4 coats of epoxy
, but it ain't happening this year, launch is about 2 weeks away. If I'm on track with this, can someone suggest a brand of "bondo" that best suits this application. Appreciated.