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Mufflers/exhausts

The is the forum to discuss general information regarding all Carver Yachts.
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Scavenger
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Mufflers/exhausts

Postby Scavenger » February 10th, 2018, 2:28 pm

My 88 mariner 3297 mufflers are so loud I can’t stand it. It’s mostly at low rpm. Is this a low water volume or need new mufflers. Thanks

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Re: Mufflers/exhausts

Postby MakinTime » February 10th, 2018, 6:08 pm

Are you sure it has mufflers? My 3607 does not have any mufflers and it’s pretty loud.
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mjk1040
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Re: Mufflers/exhausts

Postby mjk1040 » February 11th, 2018, 6:55 am

Most likely muffler internal baffles are shot.
Mike :down:
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Re: Mufflers/exhausts

Postby km1125 » February 11th, 2018, 2:03 pm

Scavenger wrote:Source of the post My 88 mariner 3297 mufflers are so loud I can’t stand it. It’s mostly at low rpm. Is this a low water volume or need new mufflers. Thanks

Could be "both"! As MakinTime says, our two boats (3607) don't have mufflers, just long exhausts. They are louder than muffled ones but if you're pumps are not pumping all the water they should then they will also be louder.

How are your raw water pumps? When was the last time they had new impellers, cams or a major rebuild?

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Re: Mufflers/exhausts

Postby AnamCara » April 26th, 2018, 10:08 pm

My 88 3607 doesn't have mufflers either...Does not go over well in sailboat marinas!
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RGrew176
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Re: Mufflers/exhausts

Postby RGrew176 » April 27th, 2018, 3:11 am

AnamCara wrote:Source of the post My 88 3607 doesn't have mufflers either...Does not go over well in sailboat marinas!


I say so what our boat has as much right to be there as their sailboats. Funny thing, the marina where I am located the sailors and powerboaters seem to get along splendidly.
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Re: Mufflers/exhausts

Postby bud37 » April 27th, 2018, 6:31 am

AnamCara wrote:Source of the post My 88 3607 doesn't have mufflers either...Does not go over well in sailboat marinas!

Interesting.....are they the same ones who don't bother to tie their lines off, so they slap on the mast all day and night in the wind.....just askin ....... :-D
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Re: Mufflers/exhausts

Postby km1125 » April 27th, 2018, 10:18 am

AnamCara wrote:Source of the post My 88 3607 doesn't have mufflers either...Does not go over well in sailboat marinas!

I have one of those 3607's without mufflers....

Funny story... years ago we went up to Lexington Harbor in Lake Huron. There were many sailboats there and they were taking up all the electrical outlets so we couldn't plug in. Not really an issue, as we just ran on battery overnight, but the next morning we wanted to take showers, so I started the stbd engine to get heat. Of course the engine had to idle the whole time... ~20-25 minutes, but we got nice hot showers. I got a standing ovation as we left, but I was laughing too!!
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quickdecision
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Re: Mufflers/exhausts

Postby quickdecision » April 28th, 2018, 7:41 am

We have a 3807, no mufflers. Very noisy. Starting to install Centek vernalift mufflers. This should reduce noise by about 60%. Easy install. I might be able to sneak up on a sailboat.

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Re: Mufflers/exhausts

Postby Viper » April 28th, 2018, 8:49 am

quickdecision wrote:Source of the post We have a 3807, no mufflers. Very noisy. Starting to install Centek vernalift mufflers. This should reduce noise by about 60%. Easy install. I might be able to sneak up on a sailboat.

I have a 3807 and am contemplating the same thing. I haven't taken measurements yet but didn't think the geometry would work for a Vernalift from what I see. If you post some pics of your install, and the Centek part numbers, that would be great. :down:

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