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Old 13-07-2021, 17:07   #1
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Catalina 30 lift muffler

Does anyone know if lift mufflers are basically just hollow inside? I'm trying to replace one on our Catalina 30. I found one that has the same dimensions, except for the location of the incoming/outgoing hoses. It may be easier do modify/fiberglas the one I found, that way I can remove the old and replace with the new in one step. Either way, they'll be fiberglassing involved, since the old one has leaks and cracks.
Below are pictured the old and 'newer'.
Correct aftermarket is $360 vs this $36 find at the local chandlery.

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Old 13-07-2021, 19:30   #2
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Re: Catalina 30 lift muffler

This is the basic internal design but there are numerous variations on this theme. Click image for larger version

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Old 13-07-2021, 19:36   #3
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Re: Catalina 30 lift muffler

Thanks skipperpete. Looks like it's more than just a square chamber. I had a feeling there was some sort of baffle in there. I better keep looking.
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Old 14-07-2021, 07:38   #4
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Re: Catalina 30 lift muffler

You may want to search on the Catalina 30 forum, where, I believe, alternate muffler installs have been discussed.

https://groups.io/g/Catalina30
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Old 14-07-2021, 08:00   #5
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Re: Catalina 30 lift muffler

If you're up for fiberglass work, I don't see why you couldn't just buy some fiberglass tubing to use for the ports and dip tube and make your own in whatever shape / size you want.
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Old 14-07-2021, 09:39   #6
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Re: Catalina 30 lift muffler

Found this on the C34 owners site:

http://www.c34.org/wiki/images/f/f3/...ler_Repair.pdf

cheers
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Old 14-07-2021, 09:58   #7
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Re: Catalina 30 lift muffler

Found this on the C34 owners site, too: (I put it there)

Mufflers 101 - What's in Your Muffler?

http://c34.org/bbs/index.php/topic,6728.0.html
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Old 14-07-2021, 23:57   #8
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Re: Catalina 30 lift muffler

Best to checkout the Catalina 30 facebook page.
https://www.facebook.com/groups/Cata...SailboatOwners
If your not a facebook guy you are missing out on a lot of valuable info from this page
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