Bilge and Keel Repair

Nov 6, 2004
6
We just bought the Aeolus v383 as "salvage" and we are working our way
around the boat inside and out planning to get her in the water next
summer. Over the years and multiple owners, most everything has been
removed (engine, stove, heater, head) except for the mold and mildew.
We knew the boat needed a lot of work so no surprises but I am unsure
of how to deal with the keel. There appears to be a leak in the bilge
allowing water into the keel.

The boat has been out of the water the last few years. On the bottom
of the keel on both side but much worse on the side opposite the bilge
plug are many small leaks. When I scrap away the antifouling paint, I
uncover circular plugs that appear to be metal. Water is leaking
around the plugs. All of these are below the level of the bilge plug.

I drilled a small hole near the bottom of the aft keel and drained a
fair amount of rusty colored water from the keel. This is in a boat
that has not been in the water for two years.

A careful examination of the bilge reveals a crack near the bottom
below and extending to above the bilge plug. The fiberglass at the
bottom of the bilge on the side opposite the plug needs repairing.

Finally, a careful look at the keel in the area of the plugs and leaks
opposite the bilge plug reveals a subtle but definite bulging compared
to the other side. In addition, the keel taps hollow in the aft part
of the keel whereas the forward is clearly solid. I think over the
last couple of winters, the water that leaked from the bilge probably
froze in the keel.

My questions are a couple. Are the multiple plugs seen at the bottom
of the keel part of the original manufacturing or something done
afterwards, and why? More importantly, what is the best way to repair
the leaks?

My plan was to grind down the bilge and build up with a half-dozen
layers of mat. Waterproof seems more important than strength in this
area. On the exterior keel, I was not going to grind down a lot of
fiberglass, just enough to get a good surface, and lay up the
following layers: mat-mat-woven-mat-woven-mat-mat in increasing areas
to seal the keel on both sides and underneath. Should I also fill the
hollow gap between the ballast (iron in the aft) and exterior
fiberglass or just leave alone? The fiberglass seem structurally sound
here.

Let me end by saying that the Vega is an incredible boat. Aeolus is 35
years old and the fundamental aspects of the boat are in great shape.
Nothing a little resin and mat can't fix.

I would appreciate any help, suggestions or advice.

Bill Wood
v383 Aeolus
 
Mar 27, 2001
121
Hi Bill

welcome to the group. I'm sure you'll get lots of feedback from
others who know a lot more than I do, but I'll start the ball rolling.

You have a Mk I vega. The aft section (from the aft edge of the
battery case back) is indeed hollow. See diagram in the files
section "keel_construction.jpg".

If you were to cut a hole in the false bilge you would see the void.

As to plugs, I have several, one atleast was original. I guess its
important to remember that boats of this age probably have been
modified by previous owners.

My personal preference for resin would be epoxy rather than polyester.

I'm still ruminating about filling the void, probably with a mix of
sand and polyseter resin. It will weight, but I view that as a small
price to pay for removing the dreaded void.

I suggest you do a search in this forum for "void", it was discused
at lenght a while ago.

Good luck

George Towler "Vista" 1043
 
Oct 30, 2019
27
Hi Bill,

Two years ago I had a similar problem with my boat, I treated her then
with an epoxy coat, "Gellshield" by International. Last year, after having
put the boat ashore, I noticed a bulging on one side of the keel (the
hollow part). The Gellshield had done its work but the water seemed to come
from the inside.
After having looked for leaks, I came tot the conclusion that the water
came from the cockpit, filled the bilge and leaked through the rear part of
the bilge, which is only a thin mutiplex board. I removed the water,
treated the keel and painted the bilge with an excellent bilge paint.
Next Friday she will be lifted out of the water and I'm looking forward to
the results of last year's work.
If you are interested I'll put this in the newsgroup but I can also send
some photographs (too big to add here) to your e-mail addres.

By the way, there is one bilge plug in the keel of my boat (which I
replaced last year) and when she's ashore I remove the plug to make sure
there is no water left during the winter.

Kind regards,

Flor Oyen
S/V Mohana V 566

bill_wood_04401 schreef:
 
Nov 6, 2004
6
Hi Flor,

Thanks for the feedback. I would appreciate any pictures so I know
what I am getting myself into.

I was thinking I could just paint the bilge but when I start poking
around I can tell the fiberglass on the side opposite the bilge plug
is damaged so I think a repair is in order. While I was at it I was
going to bilud up the bottom of the bilge so that no water can collect
even with the plug out when the boat is out of the water.

I am getting to learn about all kinds of new projects.

Thanks

Bill
bill_wood_04401@...