spray soapy water ..
that'll make an exhaust leak stand right out.

for small leaks I usually use a 'listening tube' ..
a two foot piece of hose about 3/8 inch ID.

when you get to the leak ...it's very obvious, with that method.
but you said ...not using ears, so ....soapy water sprayed around.

or hold up a stick of burning  incense - the leak can be seen in the smoke
trail from the incense.
Scott
www.turbovans.com

----- Original Message -----
From: "Mark Hineline" <hineline@OCOTILLOFIELD.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Friday, October 08, 2010 8:44 AM
Subject: Searching for exhaust leaks

>I need to go on a hunt for exhaust leaks, but after decades of
> listening to music too loud, I need to search with my ears protected.
> Does anyone have a trick for locating leaks without listening for
> them? (I have a 1982 AC gas engine.)
>
> Mark