Catalina 320 exhaust water hose lengths

Lorrie

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Jan 22, 2008
4
Catalina 320 BENICIA CA
The exhaust water hose coming out of the muffler is leaking. It's the original hose from 1997 so we want to replace both hoses, engine to muffler and muffler to aft exit. Wondering if anyone knows the lengths we need. We know the diameter is 1 5/8". See photos. Thanks
 

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Feb 26, 2004
23,074
Catalina 34 224 Maple Bay, BC, Canada
Ralph's right. For those who "don't do links", he said:
With the cost of this hose, you don't want to make a mistake. Measure it out ON YOUR OWN BOAT to be sure.

Two boats of the same length, off the same assembly line, in the same year, are not necessarily identical. The internal loops may be laid out differently. Cars, they are not.
OTOH, our C34s are very well documented, and when I replaced our exhaust hose, the "it IS 17 feet" was absolutely true.

Still, do what Ralph says: measure.

My measurements confirmed recorded "wisdom" but at least I'd've known if my boat was one of the exceptions.

Dare we suggest measure...???
 
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Likes: jssailem
Sep 11, 2022
1
Catalina c320 Berkeley
The exhaust water hose coming out of the muffler is leaking. It's the original hose from 1997 so we want to replace both hoses, engine to muffler and muffler to aft exit. Wondering if anyone knows the lengths we need. We know the diameter is 1 5/8". See photos. Thanks
Hi Just about to do the same job on hull 505, will remove and measure (to avoid public ridicule ). Just wondering if you ran into any issues/gothcas?

thx,
Ferris
 
Nov 3, 2022
2
Catalina 26 New Bern
The exhaust water hose coming out of the muffler is leaking. It's the original hose from 1997 so we want to replace both hoses, engine to muffler and muffler to aft exit. Wondering if anyone knows the lengths we need. We know the diameter is 1 5/8". See photos. Thanks
What size thru-hull is that exhaust hose connected? Is there any identifying marks/names on the thru-hull? It seems that many Catalina Yachts use the 1 5/8" dia hump hose, yet no one knows of a replacement thru-hull exhaust fitting, hence my question.
 
May 9, 2023
9
Catalina 320 Portland Harbor
Look around online and you'll find either somebody selling the unused portion of what they purchased or a WILD disparity in pricing. Measure, add a foot, spend the money. When I bought mine, most suppliers wanted something like $18/foot for Shields. I found it for $10/foot and ordered 12 feet. I received 25 feet and sold the extra 13 feet for $7/foot. So, it cost me $30 total.