Halliske,
I had the old spreaders on mine and I sealed them with Sika 281. It was messy but worked. The problem is that that straight spreaders like to move a bit. The adhesive sealant applied to the washers and around the bar seemed to work fine.
Now I just did exactly what you suggest. I got some swept speaders off a post 1985 5.7. The mast tang covered the holes perfectly and I bedded the whole thing with Sika 281. No problems sealing at ALL. Rigging doesn't change and I reused my 1 year old diamond wires without a problem. One warning I found out that the stock sails on the 5.2 have a luff that is too long for a high power downhaul!! Especially with a Dacron sail that stretches a bit. I dropped my boom about 6" and I can still downhaul the sail right to the boom without flattening the sail very much. Not sure how to fix that without getting the sail recut. Not sure if I want to because the sail is so nice! I probably need another foot of length. Anyone want to sell me a 5.5, 5.7 or 5.9 mast extrusion and ship it to the great white north?
D.
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Dave Bonin
1981 Nacra 5.2 "Lucile"
1986 Nacra 5.7 "Belle"
Winnipeg, Manitoba, Canada
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Nacra 5.0 mast base casting removal and re-sealing
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Posted: Jul 05, 2011 - 09:30 PM
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Posted: Jul 05, 2011 - 10:27 PM
I posted my photo to my album, with a note regarding the differences.
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Hobie 18 Magnum
Dart 15
Mystere 6.0XL Sold Was a handful solo
Nacra 5.7
Nacra 5.0
Bombardier Invitation (Now officially DEAD)
Various other Dock cluttering WaterCrap
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Posted: Sep 18, 2011 - 07:07 PM
"As Damon said, the extrusion is still the same, the base looks like a different shape, but my understanding is that only the little "pointy end" was removed on the captive base. "
Do you know if I can adapt this captive ball mast base from N5.7 to my SolCat 18 mast? If not, do you know what might be the closest to? The current system completly sucks, it disconnects during mast stepping so I am planning to improve it. I can fabricate something (got full access to machine shop) from the scratch but it is always easier and cheaper to adapt from prooven design. Any suggestions?
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Adam Bartos
Nacra 5.0
SolCat 18 (sold)
Lake Zurich, IL
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- Rank: Lubber
- Registered: May 02, 2017
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- Posts: 13
Posted: May 27, 2017 - 01:26 AM
I know this is an old thread, but I recently addressed the situation where the mast base casting leaves two small triangular gaps. I began by cleaning and roughing up the inside of the mast extrusion where the triangles are. I then built a dam out of duct tape and some blue play-doh I stole from my kids.
I then filled the area with West epoxy and flox.
After it dried I trimmed the excess with a saw, ground things the rest of the way with a grinder, and then finished up with 150 grit on a sanding block.
The final result seems much better than the giant boogers of silicone that were there before.
Steve Zicree
