Pearson Boats - Common Systems > Mast and Spar Issues

Mast "clanging" internal conduit loose?

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Blue Heron:
Hi all,

Last year our mast developed an annoying "clang". I suspect there is an internal wiring conduit that may have broke loose, but I can't really see up in there too well. Has anyone else dealt with this issue?

Chet

Rusty Pelican:
To my knowledge the P323 did not have an internal conduit, the wires were just run up inside the mast.
I did this 32 years ago, no problem with the mast or slapping wire sounds.

Lay the mast down, drill three or four very small holes opposite to were the internal wires will be resting inside the mast.  Squirt a very little amount of that "insulation in a can stuff" to glue the wires to the mast. The stuff expands so be careful.
You do not want to put too much in and plug the mast up.

Dolce_Vita:
In my case, the mast had an internal conduit, but it was not being used!  The wires used to clang constantly at anchor.

When I rebuilt the mast in 2013, I ran all wires to the masthead through the conduit.

Wires to the spreaders had to be run outside of the conduit.  For those, I slid foam "swim noodles" over the wires and pushed them into the mast.  The foam prevents the banging and protects the wires from chafe.

Blue Heron:
Thanks guys.
 It appears that our wires are running through a conduit, except the VHF which I think is wrapped in pipe insulation. Like I said, it's kind of hard to see in there, so I'll have to figure out a way to get a better look. I know one thing...It started last year, and I think maybe the conduit broke loose when the guys in the yard were moving it around with the sling and boom truck. It drove us crazy at anchor so I HAVE to quiet it down before we launch this year. If it is a loose conduit, I will first try to drill a small hole beside where the conduit runs, then fish a hook in the hole and try to pull the conduit up tight to the mast, drill another hole (this time through the mast and the conduit), and try to pop rivet it. If that doesn't work out, I might either the foam, or, try to stuff noodles, sponges, or something else up the mast.

selene:
Very dumb question - sorry in advance - but are you sure it is not an external line slapping?  I was convinced I had a loose internal line for a while, and after a lot of bungee cords (why does the slap only happen at 2am??) I finally convinced myself it was internal - until I tied off a last lazyjack.  Sheesh.  Who would have thought such a thin line could have made so much noise?

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