[Public-list] exhaust system

[Amy & David Swanson]

Also see "This Old Boat" or Nigel Caulder's book "Eltro-Mechanical Maual" or
something, I forget).  Both have good descriptions.  There was also a
write-up in Good Old Boat magazine a few years ago, and in Woodenboat.  I
built one without a vented loop,as many people I know have trouble with the
vents leaking hot steam when the motor is turned off, or cold water when the
motor is running.  So far (4 + years) I have not had any problems, but a
surveyor might be more worried about water getting into the motor than I am.
Then again, I have a spare atomic 4 in the garage, and the one in the boat
is down to about atomic 2-1/2 anyway.

David Swanson
Strayaway Child
Alberg 30 #229

----- Original Message ----- 
From: "Don Campbell" <dk.campbell at sympatico.ca>
To: "Alberg 30 Public List -- open to all" <public-list at alberg30.org>
Sent: Tuesday, April 27, 2004 11:56 AM
Subject: Re: [Public-list] exhaust system


> Roger
> There is a 7 page article in the current issue of DIY boat owner on
exhaust systems and  repairs.
> www.diy-boat.com
> Don
>
> "Roger L. Kingsland" wrote:
>
> > Albergers,
> >
> > My insurance surveyor said I need to "Install a vented loop in the
exhaust raw water injection hose.  Locate the vented loop as high as
possible."  I have a Universal diesel with an insulated pipe running aft to
the lower forward end of the Lazarette where it turns up and joins with the
cooling water just below deck level; then, it goes through the big black
cylinder (technical name; cylindercus darkus which I assume is a muffler)
near the low point of the Lazarette and out.
> >
> > I figure I can do a vent at the high point in the Lazarette but don't
know why it is needed (something to do w/ backflow prevention?).  Also, is
it necessary to have cylindercus darcus in the lazarette or can I move it to
the engine compartment (and shorten the rigid insulated pipe)?  Is backflow
prevention a function of the vertical dimension between the cylinder and the
high point of the exhaust of the high point of the exhaust and the engine?
> >
> > Any feedback would be greatly appreciated.
> >
> > Thanks,
> >
> > Roger
> >
> > Roger Kingsland
> > Chief Financial Officer (AKA, check writer)
> > PERFECT intentions, A30 #148
> > N40°  29.288'
> > W79°  54.228'
> >
> > Author's Disclaimer; This email was produced exclusively by the sender
and, in the interest of expediency, without the benefit of editing by
others.  The sender, thank goodness, is a much better architect/sailor than
speller/editor and, frankly, constantly laments an obvious flaw in "spell
check," it does not know what the author is thinking.  Please accept the
sender's sincere apologies for any "typos" that may appear in this document.
If present, they are certainly unintended and hopefully do not cloud the
message, or spawn any unnecessary lawsuits.
> > _______________________________________________
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> > Public-list at alberg30.org
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>
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