Garboard drain assembly

Cali_Boat_Guy

Seaman Apprentice
Joined
Jun 7, 2022
Messages
37
I have an '86 Sea Ray 270. The hole for the Garboard drain is about 1 1/4" in diameter. The garboard drain on the boat now has a sleeve, the part that goes into the hole, about 1 1/8" wide. The problem is the sleeve is too short to cover the exposed transom wood in the hole. If too much water gets into the bilge then the exposed wood will get wet. Where can I find a garboard drain that is a little wider in diameter and longer to cover the wood? Should I just use 4200 sealant to cover the wood? As always, thank you for your help!
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
49,537
Most expanding drain sleeves go all the way thru the transom. You also need the flaring tool.

The garboard flange gets sealed on the outside of the hull.

Remove flange
Replace tube
Replace flange
Seal with uv4000 as needed
 

Cali_Boat_Guy

Seaman Apprentice
Joined
Jun 7, 2022
Messages
37
I was looking at those online, however, the garboard drain on the boat doesn't have a tube. The boat is new to me so I guess the previous owner may have removed it. I sealed the brass flange (circlular piece with three screw holes that the plug screws into?) on the outside of hull. It is the bilge side that concerns me. Should I seal the bilge side of the tube as well after installing it? Thank you very much for the help! It is greatly appreciated. I'll check the iboats store for parts and give it a go.
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
27,840
A lot of garboard drains do not have tubes. Seal the transom wood with epoxy or polyester resin. Seal the garboard fitting with silicone.
 

Cali_Boat_Guy

Seaman Apprentice
Joined
Jun 7, 2022
Messages
37
A lot of garboard drains do not have tubes. Seal the transom wood with epoxy or polyester resin. Seal the garboard fitting with silicone.
Thanks Chris. That's a good idea. I'll check transom near the drain with a moisture gauge before doing so. If there is any increase in moisture I'll wait until the readings drop back down. I had a few border line moisture readings and was able to drop them much lower using a heating pad (used to germinate seeds) taped to the transom. I also drilled a few spots in the transom to double check the wood condition and all was good. I treated the exposed wood and drilled holes with 10% boron solution a couple of times as well.
 
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