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Go Back   SailNet Community > On Board > Gear & Maintenance > Small hole completly aft at waterline
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Thread: Small hole completly aft at waterline Reply to Thread
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Topic Review (Newest First)
03-09-2009 01:21 PM
Bene505 Not trying to send you someplace else, but I posted an update to this thread at anything-sailing.com and have received some good replies back. (Didn't remember that this is where I posted the original question until someone over there reminded me.)

I removed the rub rail and found a mess of old holes. So now this is a pre-launch priority fix, along with fixing the keel spalding, seacock fixes and bottom painting.

Latest picture is here:



other thread is here: Holes under aft rub rail

Regards
03-02-2009 11:36 AM
Bene505 The rubrail seems firmly attached, at least I grabbed it and tried to pull on it. That was when I was taking the first picture in this thread, while standing on the outside.

It looks like they tapped holes to screw the screws into. Only for some reason, they tapped every hole all the way through.
03-02-2009 11:11 AM
JohnRPollard
Quote:
Originally Posted by Wayne25 View Post
Yes John, that's what I was thinking. Those old holes may be stripped out or slightly oversized now and would need potting to get a good bite.
Yeah, could be. If so, it would definitely serve to fill with epoxy then re-tap after it has cured. If there's coring, it should be done no matter what. Heck, it wouldn't hurt a thing to fill with epoxy then re-tap these holes regardlesss.

But I didn't get the impression that Bene505 was having any difficulty with the rubrail mount. I.e., the rubrail had not shown signs of being loose or not well set on the hull-to-deck joint. My impression was that it was more a question of the fasteners being a bit too long for the job and not adequately bedded. So I was just focussing on the simplest solution. Also, I usually give a lot of deference to the factory guys.

I guess we'll have to hear from Bene as to whether there are any other issues in play here.
03-02-2009 10:52 AM
Wayne25 Yes John, that's what I was thinking. Those old holes may be stripped out or slightly oversized now and would need potting to get a good bite.
03-02-2009 10:10 AM
JohnRPollard If the material that these fasteners pass through is not cored, there really is no need to fill the holes with epoxy. Unless you do not plan to reuse them, and instead plan to tap new holes.

I assume there is no coring there, otherwise the factory rep should have urged you to check the condition of the coring before resetting the rubrail fasteners.

If it's solid laminate, I would go with the factory rep's suggestion of 5200, MAYBE downgraded to 4200 if you think you'll need to remove the rubrail at some point.

Even if you fill those holes with epoxy, you will have to wait for it to set-up before you sink the fasteners into it again. And then you will still need to use some kind of waterprooof, durable bedding compound when you tap the screws back in.
03-02-2009 10:02 AM
Bene505 SD,

To Wayne's question, what about filling with epoxy AFTER the new screws are in place? Would that mean that one couldn't remove the new screws in the future? (If yes, then what about putting something on the screws so they don't stick to the epoxy?)

Regards
02-28-2009 11:02 AM
sailingdog Wayne—

The fasteners still go through the holes is my guess...you wouldn't want to fill the hole with epoxy if you might have to remove the fasteners in the future.
02-28-2009 10:49 AM
Wayne25 Its great you got the reason for the hole answered. Must be nice to have the factory still in business for questions like that :-)
I know they recommended 5200, but if I was asking the question, I would of asked why not pot the holes with thickened epoxy as is recommended for most hull and deck holes? Maybe he is responding as he would to a typical owner that doesn't know what potting a hole means, but can handle a caulking gun. Or, that's what they used at the factory in the holes during construction.
02-27-2009 08:48 PM
sailingdog I wouldn't use 5200 for that... I'd recommend using 4200 or something that you'd be able remove in the future.
02-27-2009 06:16 PM
Bene505 I just got off the phone with Ward at Beneteau USA. He took the time to look at this thread and even downloaded the video to look at the series of holes.

The holes were drilled for the screws that hold the rub rail (bumper) in place.

He recommended removing the bumper, unscrewing the screws that are leaking and resealing them by squirting 3M5200 (with a caulking gun) right into the hole and then screwing the screws back in.

I love the positive attitude they have there. I asked if this was the strangest question he got all week. He said no, this is one of the good ones, it's coming from someone who is trying to take care of their boat. These guys must love sailboats.

Anyway, I got another contact at Beneteau, I'm sure I'll be asking him more questions - intelligent or otherwise. Thanks everyone for the input.

(And I'm thinking maybe I should fill-in the holes from the inside. It couldn't hurt, other than squeezing into the tight space and breathing epoxy fumes, right? But it may be difficult if I use a lot of that 3M5200.)
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