On Sat, 30 Oct 2004 09:17:19 GMT, "Cheryl and Rob"
It was for pollution. Supposed to add air (c/w oxygen) between the
engine and the cat to help the cat burn any unburned hydrocarbons.
Reality -- It's use was eventually discontinued so how good could it
Most people think that it just served to *dilute* the exhaust stream.
IF you are going to have to pass a test you will need one and it had
better be working. I have seen rebuilt ones on the net for cheap. I
have one on my 1980 Chevy 3/4 ton 4x4. Ontarion is following the
actions of California so <sigh>I guess I will keep it.</sigh>
it was good and worked...............it was discontinued because CC
early CC's needed extra air to start the catalyzing process
modern ones are two-stage: first break down nitrous oxides into N and O2,
then use the O2 to burn CO to CO2
yeah, like some people thought the O2 sensor was a spark plug to 'burn the
fuel in the exhaust'
oh dont be silly, everyone knows its a glow plug to keep the exhaust gasses
warm so Cat can work more efficiently ;-)
I have seen some cats that have a port after the first stage and before the
second stage. Would this be where an air pump would be connected? or is this
where the EGR is connected?
I have passed every test,on 3 different cars,with the air pump
If your oil and filter are changed,and the vehicle is tuned,you should
pass know problem.My `85 Blazer pasted with no computer.
The tests are a joke!
yeah I was just curious...the P.O. said he cut the belt for the AC but I
looked and that belt was still on the compressor.....(duh). I did notice
that he cut the AIR pump belt. He said he cut the ac belt to save on
gas.....I think he is crazy. But that's besides the point. He is the kind of
guy who worries about changing his blinker fluid......Thanks again for all
87 K5 350 5.7L 700R4/208 35's 4:56 D60 front and rear.
Actually the original air pumps had nothing to do with the
I bought a '69 GMC 1/2 ton and had to find an air pump,and the "rails"
that sent air into the exhaust manifolds right up against the heads at
each port.(350 Chev.)This was to comply with the California smog
check.Previous owner had remover them.
Cat convertors weren't installed in Cal until '75.
My understanding was that a steam of air into the exhaust flame would
help burn any residual unburned fuel thus reducing hydrocarbon
In Cal.you wont pass with missing/non-op smog equipment.
There are three kinds of lies; lies,damned lies,and
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