[W126 Coupe] RE: [W126 Coupe) Catalytic converter test

[Richard Hogarth]

Catalytic Converter Test ?
Absolutely. take it to any brand name ( or really knowledgeable) muffler
shop 
and they can do a back pressure test in 20min. 
They burn tiny hole in the pipe before the cat, then they rev the engine
with a pressure guage. If there is an appreciable rise in pressure when
revving the engine
the cat is backed up. 
Then they tack weld the pinhole closed.
- <mailto:-axlehead at bellsouth.net> axlehead at bellsouth.net

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From: mbcoupes-bounces at mbcoupes.com [mailto:mbcoupes-bounces at mbcoupes.com]
On Behalf Of Calvin Young
Sent: Thursday, November 10, 2005 9:29 AM
To: mbcoupes at mbcoupes.com
Subject: [W126 Coupe] Re: MBCOUPES Digest, Vol 13, Issue 11



Hi Richard,

 

any definitive way to check for bad cats?

 

Cal

 

Like rotten eggs? Your putting too much in the way of oxides of
nitrogen. I guess that indicates a bad cat.

Richard

 

another thing, I noticed gas around the gasoline filler cap.  I thought this
might be getting old and gas leaking from there, but I always get the whoosh
when I turn the cap.

 

 







Sincerely, 



Calvin A.Young 


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