[C320-list] Dry aqua muffler

[Warren Updike]

Greg, we also have a 1994, and experience the same condition.  I have
removed the petcock from the muffler and probed inside with a coat hanger:
nothing. I have opened the petcock while the engine is running: still no
indication of expected water or pressure.  Last year, I replaced the
petcock. It is a standard automotive type. No change.  I am stumped why this
would be so. Perhaps someone else on the list knows.
The only issue that concerns me is that if the engine is cranked
excessively, you are supposed to drain the muffler.  It seems this can't be
done on our boats. I am careful to not crank the engine too much.
Warren & Pattie Updike
1994 C320 #62 "Warr De Mar"
-----Original Message-----
From: GREG SUTTON [mailto:sutt47 at msn.com] 
Sent: Tuesday, November 05, 2013 9:44 PM
To: C320 Int. Association
Subject: [C320-list] Dry aqua muffler

I have a 1994 C320 with the Perkins M30 engine.  It's my second year with
the boat and during the last two winterization I have opened the aqua
muffler drain however nothing has ever drained out.  Even during operation
there hasn't been any water coming from the drain even though the engine
runs at the proper temp and there is always a good flow of water from the
exhaust. Not being familiar with the muffler system, is this typical?

Thanks
Greg Sutton
Liberty
#128