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'89 3807 Aft Exhaust Conversion and Aft Windows

Posted: February 18th, 2019, 9:26 am
by Grady2011
I was curious to see if anyone else has been in my shoes on this issue. My '89 3807 Aft had the little holes at the aft port and starboard for the exhaust and AC's. I was getting some serious carbon monoxide through some kind of make shift fiberglass repair to the fiberglass "exhaust chamber." on the starboard side. And the stainless heat shield had come off and was causing some serious rattling and vibration. So I contact the good people at Carver and they sent me an exhaust conversion instructions to put mufflers and go straight out mid ship to bypass the bad design and issue.

So I did the conversion... Love it. So much quieter. BUT.... now I have exhaust leaking through my aft port and starboard windows....

Guess the felts and the windows need to be resealed / rebuilt?! I have no clue how to do it or where to even start.... Pretty frustrating to spend all that money and still have the issue.

Anybody got any guidence? I appreciate it!

Re: '89 3807 Aft Exhaust Conversion and Aft Windows

Posted: February 18th, 2019, 11:21 am
by km1125
Curious if you have more info on the conversion you did. When you say 'so straight out mid ship', do you mean your exhaust leaves the boat somewhere forward of the stern (as in actually 'mid ship') ? Do you have any pictures from your conversion?

Can't answer the question on the windows though... good luck with finding that out.

Re: '89 3807 Aft Exhaust Conversion and Aft Windows

Posted: February 18th, 2019, 11:55 am
by Grady2011
I am not good at figuring out how to post things on here. But I can email you the exhaust conversion. Its like 3 pages. Worked out well. If you go to yachtworld or boattrader and start looking at the 3807's you can catch some photos that show the exhaust flanges and that's what they did. According to Carver this was pretty common to need to do this.

Re: '89 3807 Aft Exhaust Conversion and Aft Windows

Posted: November 18th, 2020, 5:52 pm
by danreinertson
Grady2011
Do you still have the exhaust conversion instructions ?

Re: '89 3807 Aft Exhaust Conversion and Aft Windows

Posted: November 19th, 2020, 4:33 pm
by uchu
danreinertson wrote:Source of the post Grady2011
Do you still have the exhaust conversion instructions ?


Grady2011 hasn't been in the forum since April of last year. You may want to PM him, but it's probably a better idea to contact Carver directly.