Genny Exhaust

[Scott]

Well the saga on the genny (Perkins/Kohler 12.5kw) on RUBY
continues..After repairing the genny (stator, slip ring,
brushes,regulator, end bell bearing etc) the next step, and hopefully
the final step is to replace the exhaust. It was leaking at the muffler
(not safe) and I am having a terrible time trying to find a new
muffler. Donaldson simply says they dont make it anymore, my NAPA guy
cant cross it, and BB parts ..well lets just say BB parts..two messages
and no return call..I must not be well enough known or I dont have a
new Lxi or what ever!! Does anyone know what muffler I should use and
where to purchase it?? Also, the old muffler and exhaust pipe
would "soot" after running in the same spot for a while..exhaust pipe
was 1.5" I want to go bigger maybe 1.75" or even 2.0" to let the
engine "breathe" better maybe the sooting will go away then..any
thoughts?? Thanks in advance for any input.
Scott
86FC35 "RUBY"
Murrells Inlet SC (very noisey here..350,000 harleys rolling in..bike
week..yuck)