Water Leak From Exhaust Relief

atv_freak

Seaman Apprentice
Joined
Jul 8, 2016
Messages
39


From what I'm reading this looks like the y-pipe is cracked/has hole/bad seal? It leaks into the boat when I back the trailer in and it leaks from the boat when I fill the bilge up. 1990 Donzi DL190 with OMC 4.3L and cobra out drive.
 

atv_freak

Seaman Apprentice
Joined
Jul 8, 2016
Messages
39
Is that the transom seal or an exhaust seal? I seperated the manifolds from the y-pipe and was surprised to see the flappers were still there. I stuck the hose down the y-pipe and did not see any water leaking into the bilge, just the exhaust holes under the out drive and the exhaust bellow. That means the y-pipe is alright correct? I removed the piece of saggy gasket and ran a bead of 5200 under there, so tomorrow I'll fill the bilge up and see if there is still a leak. If this solves the leak, I realize this is just a temporary fix.
 

bruceb58

Supreme Mariner
Joined
Mar 5, 2006
Messages
30,610
If it's leaking between the transom and the transom mount, you may have bigger issues. Hopefully, the transom isn't rotten.
 
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