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Author Topic: Adapting 1 15/16" muffler connect to 1 5/8" exhaust hose 1988 Universal M25XP  (Read 165 times)

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jlwoodard

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Anybody have experience adapting 2" water muffler to 1 5/8" exhaust hose?  Putting new muffler on, same as old; however, the hose is not going to go back on and I am hoping to find a work around without having to replace the entire hose length.
« Last Edit: July 30, 2022, 06:21:40 PM by jlwoodard »
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Noah

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Re: Adapting 2" muffler to 1 5/8" exhaust hose
« Reply #1 on: July 30, 2022, 05:41:03 PM »

What muffler did you buy with a 2” hose outlet? You may also have issues at the thru-hull end as well.
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1990 hull #1014, San Diego, CA,  Fin Keel,
Standard Rig

jlwoodard

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Re: Adapting 2" muffler to 1 5/8" exhaust hose
« Reply #2 on: July 30, 2022, 06:07:38 PM »

A Vetus 50R, exact same that was on there.  Technically the hose connect are 1 15/16".
« Last Edit: July 30, 2022, 06:17:38 PM by jlwoodard »
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Noah

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Re: Adapting 2" muffler to 1 5/8" exhaust hose
« Reply #3 on: July 30, 2022, 06:16:03 PM »

It would help if you listed your boat’s specifics (year hull, engine, etc.) on your signature line to help folks better target responses to your questions.
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1990 hull #1014, San Diego, CA,  Fin Keel,
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Stu Jackson

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Vetus:  https://www.vetus-shop.com/vetus-hose-adapters-c-21_72_164.html

But I think you may be mixing up ID and OD sizes.  Check carefully.
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Stu Jackson, C34 IA Secretary, #224 1986, "Aquavite"  Cowichan Bay, BC  Maple Bay Marina  SR/FK, M25, Rocna 10 (22#) (NZ model)

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KWKloeber

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Anybody have experience adapting 2" water muffler to 1 5/8" exhaust hose?



Yeah about a dozen times at last count.

I recommend a Centek Vernatube 2” x 1-5/8” reducer, which is what I had Bill use when “we” did his 2” muffler.  You can see here where he reduced it down under the sink:
https://c34.org/wiki/index.php?title=C34_Exhaust_with_Water_Cooled_Riser#Going_Forward:

It’s a one-off size not a fitzall.
« Last Edit: July 31, 2022, 10:29:26 AM by KWKloeber »
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