Water leak under exhaust outlet.

[cp4000]

Hi again everyone,
Replaced my aft bilge pump and float this weekend and while down there, noticed a puddle under my STBD exhaust outlet.  (Where fiberglass exhaust tube meets the hull.)  Felt around the area and didn't notice anything soft.  Wiped my hand across the hull just underneath the outlet and it seemed to be some slow seepage coming in.  PORT is dry.  Has anyone else had this issue?  How extensive is the fix?  

Thanks! 
cp4000

[neto]

probably rudder packing, check the nut and see if there is any water

[cp4000]

Hi Neto,
The leak is where the fiberglass exhaust attaches to the side of the hull.  Just below that joint seems to be leaking.  It is well above the rudder.  Just wondering if anyone else has had this issue and how bad was the repair?
Thanks guys and stay safe!

[cp4000]

Update on the exhaust water leak...
Sent some pictures into Centerpointe Marine as they have some experienced mechanics on older Tiaras. He had me pull off the fiberglass exhaust cap, clean all the old sealant off and then it was apparent where the water was coming through. I thought the exhaust tube and the hull were one solid piece. The fiberglass exhaust tube is installed into a hole in the hull, then sealed on the outside and glassed over from the inside. Cleaned it down to the gelcoat and resealed it up with 3M4200 and he claims it should last another 20 years!
Really appreciated the help from those guys, hope this helps others...

[JTKashou]

    Hello everyone, I tried to take my exhaust ring off as it’s leaking the same exact way you described, but no Luck. The closest I got is to put a putty knife at the edge and let it drain.  Wondering what to do next.

[MC1600]

You try tapping it with a rubber mallet from the inside? Probably just some sealant you can’t break from the angle you’re at. Given how that’s cracked already, not sure how you’ll do this without replacing the whole piece.

[cp4000]

Hey JTKashou,
Ran into the same problem. Two of the 3 are screws, and one is a bolt that has a nut on the inside which holds a grounding wire. Take that nut and wire off, push the bolt out and remove the other two screws. Take the exhaust cap off. You should see where the water is coming through then. Dry it out really well and seal the hull side with 3M4200 sealant as it will need to be done every decade or so. Put the cap back on and should be good-to-go!

[JTKashou]

Hey JTKashou,
Ran into the same problem.  Two of the 3 are screws, and one is a bolt that has a nut on the inside which holds a grounding wire.  Take that nut and wire off, push the bolt out and remove the other two screws.  Take the exhaust cap off.  You should see where the water is coming through then.  Dry it out really well and seal the hull side with 3M4200 sealant as it will need to be done every decade or so.  Put the cap back on and should be good-to-go!

---

Hello CP4000
Tried tapping from the inside. That didn’t work. All 3 screws are standard screws nothing with a grounding nut. (Other reply). Can you even get a replacement ring anywhere. I searched but again nothing.

[cp4000]

Wow, maybe someone used a permanent sealer last time?  I was told to use 3M4200, semi-permanent.  I was also told those caps are hard to find.  May want to try my Tiara dealer here in Milwaukee.  They usually can get me what I need.  1-414-273-0711, Centerpointe Marina.  Good luck!