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Old 09-12-2018, 09:57 PM
Copcraft Copcraft is offline
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Mufflers Leaking

I have a 1996 Prostar w/LT1. This has been a project so I've only ran the boat a total of 2 hours getting the engine issues worked out. I have finally got the engine to run the way it should. I notice that there is more water in the bilge than there should be. I put the boat in water without it running tonight to see if I could find a leak. It appears the mufflers are leaking, a little on each side. They are fiberglass correct? Should I just order from US Composites and put another layer on where I think the leak is? Is there something better to use? Thanks in advance for any help.
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Old 09-12-2018, 11:31 PM
Mastar Mastar is offline
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I haven't used this yet, but I just ordered some, https://www.amazon.com/gp/aw/d/B000B...op_mb_pd_title
I think it will work well, it has fiberglass in the resin for more strength. Dries quick. I plan to do mine in a week or so.
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Old 09-13-2018, 07:59 AM
Legolamb Legolamb is offline
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Boat: 1996 Prostar 190, LT1
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Grab the fiberglass kit at Walmart, clean and scuff up areas where they are leaking and add a couple layers, spray paint black when dry. Very easy repair, the biggest part of the job is getting the mufflers in and out.
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Old 09-13-2018, 09:07 AM
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tjrowbot tjrowbot is offline
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Here is a good thread on muffler repair that was in response to a similar question I had regarding muffler leak / cracking:

https://www.mastercraft.com/teamtalk...ad.php?t=82893
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Old 09-13-2018, 10:24 PM
david_ski david_ski is offline
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I scuffed up the muffler with some 60 grit paper, and then epoxied over the few holes. I used some WestMarine Epoxy (that I had left over from a job several years ago) along with some fiberglass mat. It has stayed dry with no issues.
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Old 09-14-2018, 07:12 AM
Mastar Mastar is offline
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Good to hear
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Old 09-14-2018, 08:51 AM
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captain planet captain planet is offline
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Quote:
Originally Posted by david_ski View Post
I scuffed up the muffler with some 60 grit paper, and then epoxied over the few holes. I used some WestMarine Epoxy (that I had left over from a job several years ago) along with some fiberglass mat. It has stayed dry with no issues.
This. I did this a number of years back to my 98 and it held up until the summer right before I sold it and the epoxy finally gave up and cracked and started leaking.
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