Bob

 

I replaced one on my C&C 27 that had an A4 engine.  I used stainless steel
threaded pipe and elbows, all wrapped with several layers of a proprietary
heat blanket that I had access to because I was studying that blanket
material for fire safety applications on warships.  I think it might be a
good idea to use more than a wrap of asbestos tape for hot pipe lagging and
I definitely recommend that you spend the extra cash and go with stainless
pipe and elbows.  By the way, I thought asbestos products were no longer
available for such use.

 

  _____  

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of bobmor99
.
Sent: February 22, 2014 11:31 PM
To: cnc-list@cnc-list.com
Subject: Stus-List Exhaust Riser Replacement

 

~5 years ago Ox's ol' Onan waterlift muffler rusted out.  I replaced it with
a (Vetus?) fiberglass unit and had to replace the exhaust riser in the
process. Being thrifty, I went with Home Depot 1.25" galvanized pipe and a
wrap of asbestos tape.

 

Well, five years later (last week), Ox's exhaust riser collapsed. FWIW, most
of the disintegration was toward the exhaust manifold. I'm thinking of
staying with cheap galvanized pipe but this time painting it with a
high-temperature paint inside and out. Opinions or predictions?

 

Bob M

Ox 33-1

Jax, FL

 

P.S. The waterlift muffler is fine. 

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