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 Catalina/Capri 25/250 Sailor's Forums
 Catalina 250 Specific Forum
 Snap Fitting Replacement		  New Topic  Topic Locked
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Steve Raffel
Captain

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262 Posts
Initially Posted - 05/25/2007 :  21:38:25  Show Profile
The male part of the clip that the hatch cover snaps to on the boat has rusted off. How do you replace it? Is it simply screwed to the boat? What should the hole be filled with for the new fitting?

Thanks.
Steve Raffel
C 250 WK #408
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britinusa
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Response Posted - 05/25/2007 :  21:52:27  Show Profile  Visit britinusa's Homepage
Steve, are you referring to the snaps that secure a canvas cover over the main cabin top hatch. Like these...
http://www.sailrite.com/Categories/Snap-Fasteners

If so, you just drill them out, open the void and fill with fiberglass resin and filler, redrill to correct size and put the new snaps in place.

Trick: Use a dremmel to cut a slot in the tip/side of the fastener screw so that it cuts it's way into the resin instead of trying to squeze into and therefore crack the new resin.


Paul.
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Steve Raffel
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262 Posts
Response Posted - 05/26/2007 :  13:03:51  Show Profile
Paul, thank you for you excellent suggestions. Would Marine Tex work as the filler? Could you give me some more info on the dremmel part. I don't understand that part.

Thanks.
Steve
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britinusa
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Response Posted - 05/26/2007 :  17:47:14  Show Profile  Visit britinusa's Homepage
Steve, never used marine tex, I keep a gallon can of west marine resin in the garage.

About the dremmel part. It's a simple trick, you can turn any screw into a self tapping screw if you simply cut a groove along the lower length of the screw with a dremmel rotary disk cutter.

It's particularly effective when using self tapping screws, like on the snap fittings, into fiberglass. If you predrill the hole the correct size, the self tapper cuts it's way into that hole. If you don't use a self tapper, you risk the cracking of the new resin/existing fiberglass as the screw tries to force it's way. Obviously this is not an issue if you are screwing into wood, but even then, it dramitcally reduces the chance of splitting.

Paul.
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Steve Raffel
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262 Posts
Response Posted - 05/27/2007 :  16:12:20  Show Profile
Again many thanks for your directions. I am not the handiest guy in the world but feel I can do this job with what you have given me.

Steve
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Steve Raffel
Captain

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262 Posts
Response Posted - 05/29/2007 :  16:58:45  Show Profile
Paul, I have been thinking about this repair and hope you don't object to 2 more questions that have I have.

Would it make any sense to fill the hole with resin,put the new snap in and let the resin harden the snap into place rather than drilling it?

If I do drill the resin, do you recommend enlarging the hole before filling it with resin?

Again, thanks for your help.

Steve
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SEAN
Admiral

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772 Posts
Response Posted - 05/30/2007 :  08:39:54  Show Profile
Try to drill a Hole (in the stud) about have the size of the broken off stud or a little bigger and use a easy-out(home depot) to back the screw out .
it will probably spin out while your drilling .
if you use backward cutting drill bit it should come out while your drilling .

Try to stay on the the metal and not slip off in to the fiberglass .you could dremal a flat spot on the stud to drill on center .

If you can get the stud out you should be able to screw the new one in the same hole .
Edited by - SEAN on 05/30/2007 08:42:03
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.