[Public-List] Muffler Design

[James Allocco]

John et al,

I'm not sure if the original standpipe was brass or bronze but it developed
an internal leak that allowed water to enter the engine shortly after I
purchased the boat. At that time it was 15 years old and had only been
sailed in fresh water.  Navy point marina at Sackets Harbor, NY removed the
muffler and had one fabricated out of stainless.  The stainless muffler
lasted 12 years in fresh water and 10 years in brackish.

Jim



On Mon, Oct 31, 2011 at 11:03 AM, John Birch <Sunstone at cogeco.ca> wrote:

> George, et al,
>
> Has anyone encountered significant corrosion issues with the old bronze
> standpipe exhaust muffler in saline conditions ?
>
> If I am not mistaken, would not going to an SS design (unless made of 316
> SS) encounter worse corrosion issues as, if I am not mistaken, the warm
> salt water going through enhances corrosion of SS below 316 grade.
>
> Please correct me if I am wrong.
>
> Many thanks
>
> John - PS. Sunstone, our A-37 uses the same design muffler on a Westerbeke
> 4-107. Ours still functions quite well.
>
> ----- Original Message ----- From: "George Dinwiddie" <
> gdinwiddie at alberg30.org>
> To: "Alberg 30 Public List -- open to all" <public-list at lists.alberg30.**
> org <public-list at lists.alberg30.org>>
> Sent: Monday, October 31, 2011 10:49 AM
> Subject: Re: [Public-List] Muffler Design
>
>
>
>  On 10/31/11 9:30 AM, James Allocco wrote:
>>
>>> Also, what zincs are on the engine?
>>>
>>
>> If you've got an Atomic 4, there are no zincs on the engine (unless
>> you've added them).
>>
>>  - George
>>
>> --
>>  ------------------------------**------------------------------**
>> ----------
>>  When I remember bygone days                         George Dinwiddie
>>  I think how evening follows morn;            gdinwiddie at alberg30.org
>>  So many I loved were not yet dead,           http://www.Alberg30.org
>>  So many I love were not yet born.                          also see:
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>>  ------------------------------**------------------------------**
>> ----------
>>
>>
>>
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