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Old 12-06-2017, 07:02 PM   #1
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Default Thru Hulls Rebedded or Not

I just purchased a 1999 Tiara 3500 Open. The survey results showed moisture around the thru hulls. I dropped into the engine compartment to check them out and it looks like they may have already been rebedded. What do you think? Were they rebedded or something else done?
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Old 12-06-2017, 07:03 PM   #2
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Need 10
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Old 12-06-2017, 07:04 PM   #3
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Old 12-06-2017, 07:04 PM   #4
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a picture.
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Old 12-06-2017, 07:05 PM   #5
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Sorry about that!

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Old 12-06-2017, 07:05 PM   #6
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Old 12-06-2017, 08:27 PM   #7
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I wouldn't care about the moisture readings, but would rip out the plastic thru hulls and replace with
stainless steel fittings...
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Old 12-06-2017, 08:35 PM   #8
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I don't know why a Tiara 35 would have plastic thru hulls, even above the waterline. Regardless I would replace with bronze, if for no other reason than peace of mind.
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Old 12-07-2017, 02:15 AM   #9
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Pretty sure that both Tiaras and Pursuits of that vintage used Marelon fittings. Shouldn’t be a problem.
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Old 12-07-2017, 03:35 AM   #10
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Looks like a slop job, not re bedded.
If it was done properly caulking would ONLY be outside. No evidence inside.
That said when redoing it, do youself a favor and install stainless fittings so you don't chance doing it again, when they crack
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Old 12-07-2017, 04:02 AM   #11
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Quote:
Originally Posted by jayyy View Post
I don't know why a Tiara 35 would have plastic thru hulls, even above the waterline. Regardless I would replace with bronze, if for no other reason than peace of mind.
Very good advice.
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Old 12-07-2017, 04:22 AM   #12
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Looks (obviously) like a sloppy rush job trying to fix leaks that were revealed by your survey.
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Old 12-07-2017, 04:53 AM   #13
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check the hose on the right while you're at it

looks wonky in the pics like the fitting is too small


x2 on replacing the fittings
bronze if below waterline
stainless or bronze if above waterline
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Old 12-07-2017, 04:57 AM   #14
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That vintage tiara, you need to be looking at edge sealing any exposed core and then re bedding. Many boats over the years were missing the solid glass pad for the fittings or they were in the wrong place etc.

Probably worth looking into the hatches and windows as well in your maintenance schedule.
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Old 12-07-2017, 06:52 AM   #15
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Quote:
Originally Posted by Madeira View Post
I wouldn't care about the moisture readings, but would rip out the plastic thru hulls and replace with
stainless steel fittings...
Nothing wrong with a Marelon thru-hull, except for aesthetic purposes. I would never have a SS thru hull underwater, bronze is far superior. Look at any yellowfin that's been kept in the water and you'll see what I mean.
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Old 12-07-2017, 06:58 AM   #16
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Marelon is a tough ass fitting, some of you guys are so paranoid...

There is nothing wrong with having marelon fittings on a boat above the waterline, zero, zip, nada.

If you'd like to waste some money replace those with stainless
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Old 12-07-2017, 07:13 AM   #17
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Quote:
Originally Posted by keysdiver View Post
Looks like a slop job, not re bedded.
If it was done properly caulking would ONLY be outside. No evidence inside.
That said when redoing it, do youself a favor and install stainless fittings so you don't chance doing it again, when they crack
I don't think the yellower material is caulk. I think it is some sort of epoxy. I would have expected caulk to be soft and the marks make it look like the material was spread. I'm hoping it isn't something like 5200, or I'll have to cut half the boat apart to get those thru hulls out!

Copy what everyone said on using stainless or bronze if I replace... I agree completely. I may try to remove one that is easy to access first to see what kind of job I'm looking at and to see what was done previously...
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Old 12-07-2017, 07:14 AM   #18
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Quote:
Originally Posted by Local Motion View Post
Looks (obviously) like a sloppy rush job trying to fix leaks that were revealed by your survey.
This work would have been done before my survey. I don't know if it was weeks or years though.
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Old 12-07-2017, 07:34 AM   #19
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Quote:
Originally Posted by textured captain View Post
That vintage tiara, you need to be looking at edge sealing any exposed core and then re bedding. Many boats over the years were missing the solid glass pad for the fittings or they were in the wrong place etc.

Probably worth looking into the hatches and windows as well in your maintenance schedule.
Good advice, thank you! I've read that the vents can be unsealed, now I just need to figure out how the heck to remove them, preferably without breaking them! Same goes for the windows. The hatches will be easy enough to check and reseal. Any other edges you can think of? Rub rail?
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Old 12-07-2017, 07:46 AM   #20
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Quote:
Originally Posted by johnnyq627 View Post
I just purchased a 1999 Tiara 3500 Open. The survey results showed moisture around the thru hulls. I dropped into the engine compartment to check them out and it looks like they may have already been rebedded. What do you think? Were they rebedded or something else done?
I went through the same thing on my Tiara. You need to remove them all, grind the core back and seal them with epoxy. It's the only way you can be sure it won't get worse.
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