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Old 16-11-2018, 14:26   #16
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Re: Water Ingress Around Mast

Sorry it took so long to get these posted. I removed the aft-facing panel of the wood mast base in the salon and took a few pics. It appears that this entire wooden mast base is constructed as a unit and then glued as a unit to the stand-off blocks that are attached to the fiberglass...it is not meant to be removed (easily anyway).

My best guess at the leak source is the horizontal seam that appears to be separated a bit in the close-up shot of the starboard side. It could also be coming from that same seam, further forward and out of view. Next trip down to the boat, I'll try to reseal the area in question.

Note that the aft facing panel is joined to the sides with wood screws through the plastic pockets in the side panels - prying off that aft panel wasn't easy, but I was able to keep from wrecking the side panels. The one upside down pic shows the lip in the top piece that the aft-facing piece slides into.

We plan to (after fixing the leak) getting a nice piece of finished wood to replace the panel we removed (and somewhat destroyed in the process).

If anyone has found their leak and has a solution, please post.

Pat
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Old 16-11-2018, 15:06   #17
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Re: Water Ingress Around Mast

That's some good work!

If I'm understanding which run of caulk you're referencing, how does the water get to the backside of that? That's the underside of the same piece of fiberglass that the mast is sitting on, correct? Is water coming through the mast bolts and weeping across the underside of the fiberglass? Would it be advisable to remove bolts one at a time, cover with appropriate caulk, and reinsert?

If/when I get around to tackling this project I think I'm going to remove the wood fascia altogether and clean up the newly exposed fiberglass. It just seems to serve to hide a significant problem. Mine is actually getting mildewy and gross anyway.
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Old 16-11-2018, 15:54   #18
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Re: Water Ingress Around Mast

My guess, and I repeat, guess, is that it is coming in from the external mast base. Mine is a flat ring that has several slotted screw heads holding it to the deck, with some other openings in the ring without screws...just holes. I don't currently have a picture but this is where I generously coated the area with "flex seal" spray - to no avail.

Next time down to the boat I will invest more time into learning the entire mast/hull interface. It's a work in progress!

Loud Music, how's the transit going? We'll be on the hard through April...

Pat
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Old 16-11-2018, 16:55   #19
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Re: Water Ingress Around Mast

Ah yes, you mentioned the flex seal previously. Definitely worth more investigation in that area.

We're now on the hard in Ft Lauderdale. Volvo engine warranty replacement, woohoo!

Then additional works.
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