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Daddio Rick
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Joined: 11/13/19
Posts: 28
Muffler replacement?
Just discovered a corner of my aqua lift has had a smallish blowout. Fumes and water leaking. Currently have it removed and considering options. If replace rather than repair can I use another brand and type? Others such as vetus are much cheaper. If repaired I have seen several threads discussing this and it looks quite doable but would welcome hearing opinions. Thanks in advance... Rick<img src="/sites/default/files/styles/medium/public/IMG_20191201_172448850-1536x2048.jpg?itok=r0sj2kzg" width="165" height="220" alt="" class="image-medium" /><img src="/sites/default/files/styles/medium/public/IMG_20191201_172448850-1536x2048.jpg?itok=r0sj2kzg" width="165" height="220" alt="" class="image-medium" />

Indigo, 1995 MKII, Charleston SC, SR/WK

dpower
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Joined: 6/20/08
Posts: 189

We replaced our muffler a few years ago.  We contacted Catalina Yachts and had a new one fabricated.  It took a couple of weeks and cost about $250+. An exact fit.

Daddio Rick
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Joined: 11/13/19
Posts: 28
I have checked CD and they have my exact muffler at abuot $400 plus shipping. Can go that route but may just grind it down a bit and see if it would clean up enough for a fiberglass patch. I have quite a bit of fiberglass experience as well as all the materials. In case others might try this type of repair I will post a few pix along the way. Here is one after some preliminary cleanup and grinding...&nbsp;<img alt="" class="image-medium" src="/sites/default/files/styles/medium/public/forum/IMG_20191202_171346449.jpg?itok=bbfmwlEA" style="height:220px; width:165px" />
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LeslieTroyer
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Joined: 3/13/16
Posts: 511

It's an easy repair. 

Daddio Rick
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Joined: 11/13/19
Posts: 28

Seems to be pretty straight forward. Just wondering about heat resistence of fiberglass? Should I be concerned about internal muffler temps? Some sort of heat shield prior to glassing?

LeslieTroyer's picture
LeslieTroyer
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Joined: 3/13/16
Posts: 511

The muffler is all fiberglass already so heat isn't a problem.  I'd use an epoxy resin for better adhesion.   

Daddio Rick
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Joined: 11/13/19
Posts: 28

Got it glassed up yesterday. Some testing for leaks and paint today and then reinstall. Installation will involve the unenviable job of cleaning the engine area completely as the PO must have run the engine for a fair number of hours not realizing that it was leaking exhaust and water. Also want to reinstall using hump hose this time instead of straight exhaust hose. 

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LeslieTroyer
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Joined: 3/13/16
Posts: 511

Looks like a great repair!!   Silicone hump hoses are the way to go.  

 

Daddio Rick
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Joined: 11/13/19
Posts: 28
Temporarily all done except for the hump hose. Had every intent of using the humpster but my otherwise excellent rubber and gasket company does not carry it. So I reinstalled with straight wet exhaust hose with plans to order to the new hose. Anyway a test run worked well and I am pleased to save the $400 to be spent elsewhere on the boat... :-)<img alt="" class="image-medium" src="/sites/default/files/styles/medium/public/forum/IMG_20191205_131644638.jpg?itok=xUMdD_9b" style="height:220px; width:165px" />&nbsp;
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