[C320-list] Water lift muffler

[john at frostnet.net]

Many of the failures were, like mine, were at the corners by the screw holes. That indicated to me that vibration there might be the culprit, so I put a rubber pad under the new muffler and then restrained it with a wide nylon strap rather than the 4 screws . Has worked for years


John
2007 C320MKII
Hull  #1118
Lake Guntersville, AL





-----Original Message-----
From: C320-list <c320-list-bounces at lists.catalina320.com> On Behalf Of wdoc1--- via C320-list
Sent: Thursday, September 26, 2024 12:01 PM
To: c320-list at catalina320.com
Cc: wdoc1 at aol.com
Subject: Re: [C320-list] Water lift muffler

 Have not had this problem yet, but any day now...
Has anyone replaced the custom Catalina muffler with an off-the-shelf unit, such as a Vetus?
https://defender.com/en_us/vetus-wlocklr-exhaust-system-plastic-waterlock-muffler-with-rotating-inlet?utm_id=146308134413&utm_campaign=19735474070&utm_source=google&utm_medium=paid&utm_content=649561297602&gad_source=1&gclid=EAIaIQobChMIkvTd6InhiAMVX1xHAR0FTzqYEAQYASABEgKbkvD_BwE#493=2172 
   Bill
Diversion, #714Middle River MD
 On Thursday, September 26, 2024 at 11:36:07 AM EDT, Greg Flanagan via C320-list <c320-list at lists.catalina320.com> wrote:   

 Yes. Has happened to me. I avoided the (high) shipping costs by a careful drawing of my original. It is interesting that it seems each muffler was a one off on a production boat. I reinstalled the new muffler on some door seal tape for cushioning of the vibrations and believe this quiets  it and will extent its life. 


Greg
Hoop Dancer #1076
Sidney, BC

> On Sep 26, 2024, at 8:25 AM, Doug Treff via C320-list <c320-list at lists.catalina320.com> wrote:
> 
> This is a known issue with these mufflers. The seam around the base where the top is glassed to the bottom eventually cracks and the exhaust pressure will push out water and fumes through the cracks. There have also been cases of cracks developing where the hose tubes go through the muffler wall.
> 
> Supposedly, you used to be able to order a new muffler from Catalina, but I am unsure if this is still possible. If they still do it, the would require you to send them your old one to use as a template, effectively rendering your boat inoperable until the new one arrives.
> 
> There is an article in the C320 Association web site on how to repair it yourself:
> https://c320.org/article.php/RepairingTheAqualiftMuffler?query=muffler
> +repair
> 
> --
> Doug Treff
> doug at treff.us
> 
> On Sat, Sep 21, 2024, at 7:57 PM, Louis Spitz via C320-list wrote:
> > The muffler on my 1995 C320 is leaking into the boat, filling the 
> > bilge with messy sooty exhaust. Should I repair (and if so, how?) or 
> > replace ? Which brand have folks used?
> > Thanks,
> > Louis Spitz
> > Merry Chase, #195 Nyack, NY