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How do I repair a 79 sea ray baffle leak. I have exhaust…

Customer Question
How do I repair...

How do I repair a 79 sea ray baffle leak

Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. The Marine Mechanic I'm going to connect you with knows all the tricks and shortcuts. Tell me a bit more about what's going on so the Marine Mechanic can help you best.

I have exhaust leak coming from fiberglass housing

Mechanic's Assistant: Is there anything else the Marine Mechanic should be aware of?

It has a strong exhaust smell

Submitted: 6 months ago.Category: Boat
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Answered in 6 minutes by:
11/29/2017
Marine Mechanic: Jason, Marine Mechanic replied 6 months ago
Jason
Jason, Marine Mechanic
Category: Boat
Satisfied Customers: 17,494
Experience: Degree in Marine Technology. Gas and diesel marine mechanic.
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Hello my name is ***** ***** am I speaking with? I read what you wrote. Do you have any pictures of exactly what is leaking?

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Marine Mechanic: Jason, Marine Mechanic replied 6 months ago

Are you still here?

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Customer reply replied 6 months ago
Hi Jason. My name is***** had a massive backfire at rear exhaust engine was not running at the time I was trying to time it I could smell fiberglass my exhaust pipe runs into a fiberglass housing and the exhaust is exited under the boat that is underwater the exhaust is coming from the inside wall on the side of the boat like de lamination of glass between the housing and the inside wall
Marine Mechanic: Jason, Marine Mechanic replied 6 months ago

Hi Joe. Do you happen to have any pictures of exactly what is split/cracked/leaking?

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Customer reply replied 6 months ago
Jason, are you a boat mechanic
Customer reply replied 6 months ago
Jason, are you still here
Marine Mechanic: Jason, Marine Mechanic replied 6 months ago

Yes I am. Degree in marine technology. 20+ years experience. Certified with Mercruiser and most other (but not all) brands. Whats up?

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Customer reply replied 6 months ago
Are you familiar with 1979 sea ray's
Marine Mechanic: Jason, Marine Mechanic replied 6 months ago

Are you asking me if I have a working memory of a 40 year old boat? Of course not, nobody would. I rarely work on things over 15 years old simply because they get way to expensive to fix when the customer is paying 120 bucks per labor hour. What is your issue exactly, do you have a split fiberglass muffler?

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Marine Mechanic: Jason, Marine Mechanic replied 6 months ago

I​f you have a split muffler then you simply need a new one. Did you need help in trying to find a new one?

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Customer reply replied 6 months ago
Muffler is enclosed in fiberglass as part of the boat
Marine Mechanic: Jason, Marine Mechanic replied 6 months ago

I would still need to see it. Can you take any pictures for me? There are no time limits here so if you have to get back with me later that would be fine. Either way you would have to slice out the old part and fiberglass in a new part. Its just a question of either finding the right part or finding a company to make the part for you.

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Customer reply replied 6 months ago
My thought before sawing the glass box to look inside is to pour resin between the inside wall and box where the rattle and fumes are coming maybe the backfire pressure delaminates the two
Customer reply replied 6 months ago
What do you think About my comment above
Customer reply replied 6 months ago
Hello, are you still there
Marine Mechanic: Jason, Marine Mechanic replied 6 months ago

Th​e problem is nothing is going to stick the old fiberglass. You have 40 years of burned and unburned gasoline, oil, and every other hydrocarbon out there that is on the inside of that muffler. You could whatever you wanted into the crack, smear it with bondo, smear it with a high quality fiberglass reinforced putty, and nothing is going to stick to it. It might work for a week or two under hard operation, but the "patch" is always going to fail, which is why I wrote that you need a new part. Does that make sense.

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Customer reply replied 6 months ago
The fix is on the outside housing that is clean and not exposed to exhaust the housing is laminated to the side hull
Marine Mechanic: Jason, Marine Mechanic replied 6 months ago

I ​don't understand. Have you laid together fiberglass molds or laminations together before, either by hand or by machine, have you ever made fiberglass parts both gel coated and raw? More so, i do not understand, was your last questions a statement to me or a question to me?

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Customer reply replied 6 months ago
Done fiberglass repairs only. I just want to attempt to seal the opening that was created by the pressure before attempting to saw open exhaust box
Customer reply replied 6 months ago
Opening is on outside
Customer reply replied 6 months ago
Correction, meant fumes are on outside
Marine Mechanic: Jason, Marine Mechanic replied 6 months ago

It is my professional opinion that whatever type of glue/epoxy/fiberglass/bondo/silicone ect that you try simply will not hold up in the long run, and it's nothing we would even bother attempt in the shop. Did you have any further questions on the issue or was that your primary question?

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Customer reply replied 6 months ago
Thanks anyway
Marine Mechanic: Jason, Marine Mechanic replied 6 months ago

Y​ou really just need to bring your boat into a yard and let them give you an estimate. We can't offer the same level of service here especially when we can not see what you are looking at.

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Customer reply replied 6 months ago
Thanks Jason
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