Go Back  Offshoreonly.com > Technical > General Q & A
Broken Exhaust Dam Flapper >

Broken Exhaust Dam Flapper

Notices

Broken Exhaust Dam Flapper

Thread Tools
 
Old 12-12-2025 | 09:08 AM
  #51  
Registered
Veteran: Navy
20 Year Member
 
Joined: Oct 2005
Posts: 274
Likes: 153
From: texas
Default

Originally Posted by Brad Christy
Guys,






Easy peasy.

Thanks. Brad.
Outstanding. Solution...
My tips look like those
I have the swirly things in them


powerboatr is offline  
Reply
Old 12-12-2025 | 09:14 AM
  #52  
Registered
15 Year Member
 
Joined: Jun 2007
Posts: 7,318
Likes: 1,824
From: Merritt Island, FL
Default

I have dry to tip with SS rings, and gaskets. The gap filled with 4200. Wish it was that easy.
Wildman_grafix is offline  
Reply
Old 12-12-2025 | 04:37 PM
  #53  
Thread Starter
VIP Member
Community Builder
VIP Member
 
Joined: Jun 2021
Posts: 3,512
Likes: 2,136
From: SW Ohio
Default

Guys,

Getting ready to reinstall these, using 4200. What do we use to clean up the overage? I don't think I want to use acetone or MEK like the tube suggests. It says to not use alcohols, as it will inhibit curing. Kinda wish I'd read that before I installed the bracket and bulkhead fittings for my steering conversion....

Thanks. Brad.

Last edited by Brad Christy; 12-13-2025 at 09:41 PM.
Brad Christy is offline  
Reply
Old 12-12-2025 | 05:39 PM
  #54  
Registered
5 Year Member
 
Joined: Mar 2020
Posts: 372
Likes: 182
From: East Tennesseee
Default

Mine was put together with a regular rubber gasket that goes between the flange and the transom. They seal up great. Boat is 38yrs old and transom is as dry as the day it was built. I'd find the proper gasket before gluing everything together when you don't have to.
Smitty275 is offline  
Reply
Old 12-12-2025 | 05:49 PM
  #55  
Registered
Veteran: Navy
20 Year Member
 
Joined: Oct 2005
Posts: 274
Likes: 153
From: texas
Default

Originally Posted by Brad Christy
Guys,

Getting ready to reinstall these, using 4200. What do we use to clean top the overage? I don't think I want to use acetone or MEK like the tube suggests. It says to not use alcohols, as it will inhibit curing. Kinda wish I'd read that before I installed the bracket and bulkhead fittings for my steering conversion....

Thanks. Brad.
i have used a plastic razor blade followed by acetone, then wipe with fresh water soft cloth.
i also use blue painters tape to ensure the 4200 only goes where i want it, once done you can remove the tape and GENTLY fair the seam if its standing to proud on the tape edge,
SLOW and steady

Last edited by powerboatr; 12-13-2025 at 06:14 PM.
powerboatr is offline  
Reply
Old 12-12-2025 | 07:06 PM
  #56  
Registered
20 Year Member
 
Joined: Jan 2005
Posts: 4,822
Likes: 376
From: IL
Default

Mineral spirits
boatnt is offline  
Reply
Old 12-13-2025 | 09:27 AM
  #57  
Registered
15 Year Member
 
Joined: Jun 2007
Posts: 7,318
Likes: 1,824
From: Merritt Island, FL
Default

What powerboat said. But acetone doesn’t seem to bother the gel.

just wax good after.
Wildman_grafix is offline  
Reply
Old 12-13-2025 | 09:41 PM
  #58  
Thread Starter
VIP Member
Community Builder
VIP Member
 
Joined: Jun 2021
Posts: 3,512
Likes: 2,136
From: SW Ohio
Default

Originally Posted by boatnt
Mineral spirits
BoatNT,

And mineral spirits for the win. Worked great.

Thanks. Brad.
Brad Christy is offline  
Reply
Old 01-05-2026 | 01:08 PM
  #59  
bn
Registered
25 Year Member
 
Joined: Oct 2000
Posts: 706
Likes: 6
From: Syracuse, NY
Default

Looks like I'm a little late on on this one, but these worked great for me 4" Slip-On Silent Seal Flap Assembly. Hopefully this helps out the next person that has to do this.
bn is offline  
Reply
Old 03-15-2026 | 09:00 AM
  #60  
Registered
10 Year Member
 
Joined: Aug 2013
Posts: 169
Likes: 46
From: bellingham wa.
Default


Omg worked like a charm, thanks for the idea
496blower is offline  
Reply


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.