[C320-list] Exhaust leak

[pat reynolds]

 from experience the muffler tended to leak from a crack at the bottom of the 
intake tube probably from vibration or on the bottom of the muffler itself.  at 
any rate if the area around the muffler is not showing water it is not leaking
I don't know if all leaks would show up if you removed it and just fill it with 
water without any pressure.  you say you see smoke in the engine compartment 
etc.  is this actual smoke or grim which you suspect is smoke.  if grim it may 
be belt "dust"  but you shouldn't be smelling smoke in the main salon.  this 
would indicate a problem needing to be found


----- Original Message ----
From: Paul Rickman <ilove2sail at verizon.net>
To: C320-List at Catalina320.com
Sent: Fri, May 13, 2011 8:20:07 AM
Subject: [C320-list] Exhaust leak

Some of you have had issues with the Catalina muffler. As I recall 
each one detected a leak because you found water around the muffler,
and therefore, found a crack. I have a new gasket on the manifold,
a new exhaust hose, and a new Catalina style (riser where the water
gets injected into the exhaust). I have removed the muffler and 
could not find any cracks and I do not detect any water around the
muffler. I have removed the muffler drain and replaced it with a bolt
plug (the old drain was leaking exhaust only, no water). After all
this, I still smell exhaust in the master cabin. I can also see exhaust
smoke in the engine compartment, on the sides, on the motor,
and on the forward cover - not so much on the aft cover and next to
nothing on the muffler. All connections are tight.  My next move will be 
to remove the muffler, fill it with water to see if it leaks. 

Any ideas???

Thanks,
Paul
Affinity 657
Bay Bridge Marina
Chesapeake Bay, Maryland