[Alberg30] Re: failed galvanized exhaust system fitting

[Mike Lehman]

George et al

>From my experience galvanized steel pipe lasts about 5-6 years on the 
Chesapeake. When it fails, you're done...better pray for wind.


Mike Lehman
"Gilleleje" #505





----Original Message Follows----
From: George Dinwiddie <gdinwiddie at alberg30.org>
Reply-To: Alberg 30 public list <public-list at alberg30.org>
To: Alberg 30 public list <public-list at alberg30.org>
Subject: Re: [Alberg30] Re: failed galvanized exhaust system fitting
Date: Tue, 25 Mar 2003 11:37:59 -0500

Actually, I think steel exhaust pipes probably erode quicker when not used.  
Rust never sleeps.  Hot air dries it out.  I would advise checking steel 
exhausts over five years.  It may be fine, but you should keep an eye on it. 
  And I wouldn't use steel for the wet part of the exhaust.

My point is that steel pipe works perfectly well for exhaust pipe.  It's 
relatively short lived, but inexpensive.  To condemn all steel exhaust pipe 
on the basis of a single failure on unknown age is a bit over-reactive.

That said, I plan to use all bronze on my next exhaust system.  I also plan 
to put in a rebuilt Atomic 4.  I'm tired of having a rusting-apart engine 
and want to try the other end of the scale.

  - George

gordon white wrote:
>    Since it was in the boat when I bought it I can't be sure of its age,
>but no older than the Westerbeke Diesel engine that was put in about
>1989. It had about 200 hours on the Hobbs meter when it failed in 1996,
>so my guess is that the fitting was about seven years old and had not
>had a lot of use.
>
>- Gordon White, A-275

--
  ----------------------------------------------------------------------
   Hope your road is a long one.                        George Dinwiddie
   May there be many summer mornings when,       gdinwiddie at alberg30.org
   with what pleasure, what joy,                 http://www.Alberg30.org
   you enter harbors you're seeing for the first time;
                                            from 'Ithaka' by C.P. Cavafy
  ----------------------------------------------------------------------

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