Re: [Amc-list] dumping the snake

[Jim Blair <carnuck@xxxxxxxxxxx>]

Sometime in the early '90s they developed a cat that was anerobic (didn't need the AIR pump after that) My opinion of the whole AIR system was that it just used a measured mixture or air blended into the exhaust to convince the emission test equipment there really was a drop in HCs and CO (especially in cars that didn't even have a cat!)


From: Wrambler242@xxxxxxxxxxx
Subject: Re: [Amc-list] dumping the snake
To: "AMC/Rambler owners, drivers and fans." <amc-list@xxxxxxxxxxxx>
Message-ID:
	<040320080318.14801.47F44C8400021C36000039D12216548686CDCBCD0A0C079D9F059D0E03@xxxxxxxxxxx>
	
 
They "played" with the system till they finaly managed to do away with the pump.
I think the key was getting the exhaust to "draw" in enough outside air to light of the cat or alter NOX levels.
I don't know much about that kind of stuff, never had to figure it out, yet...
Anyway, they went from pump to no pump over a few years.
I think the later models just had feed tubes to the exhaust and cat, not the tube manifold into the exhaust manifold.
 
--
Mark Price
Jim Blair, Lynnwood, WA '87 Comanche, '83 Jeep J10, '84 Jeep J10


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