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- Newsgroups: rec.autos.tech
- Path: sparky!uunet!usc!sol.ctr.columbia.edu!news.unomaha.edu!cwis.unomaha.edu!mgolden
- From: mgolden@cwis.unomaha.edu (Brian Golden)
- Subject: Re: WHAT IS AN A-I-R PUMP ON A CHEVY CAPRICE ENGINE?
- Message-ID: <1993Jan22.080246.7763@news.unomaha.edu>
- Sender: news@news.unomaha.edu (UNO Network News Server)
- Organization: University of Nebraska at Omaha
- References: <1993Jan22.082111.165610@dstos3.dsto.gov.au>
- Date: Fri, 22 Jan 1993 08:02:46 GMT
- Lines: 40
-
- pzh@swan.dsto.gov.au writes:
- > mgolden@cwis.unomaha.edu (Brian Golden) writes:
- > << stuff deleted>>
- >
- > > Or if your state doesn't have an inspection law, and you are not too
- > >concerned about being legal, you can just take the damn thing off and
- > >get a shorter fan belt, and plug the holes in the exhaust manifold. You
- > >will get a little more power this way, because the engine will not have to
- > >turn the AIR compressor. Either way, it is not terribly difficult.
- > > Option three: Just disconnect the pully and get a shorter fan belt,
- > >so that you can reconnect it come inspection time!
- > >
- > >Mike Golden - mgolden@cwis.unomaha.edu
- >
- > DO NOT JUNK THE AIR PUMP!!
- > The motors that use air pumps here in Oz apparently do not
- > react well to having the air pump disconnected. The after-market workshop
- > manual for my car (Gregory's brand) warns not to remove the pump or run the
- > motor without the belt even for short periods of time.
- >
- > I must say, my first reaction to pumping air back into the exhaust ports was
- > "what a stupid idea, I'll soon fix this".
- >
- > Now can anyone tell me *why* the air pump shouldn't be removed??
- I can not really think of any reason why removing the air pump would affect
- engine performance. It might be harmfull to your catalytic converter
- (emphasis on MIGHT). The only possible explanation is that on modern
- engines with an O2 sensor, it might throw it off. I don't see how an O2
- sensor would even work on an AIR equipped car anyway, because it would be
- fed straight air from the outside world, and it couldn't monitor the O2
- left over after the engine like it is supposed to. I think that this is
- just a ploy to get you to keep your emmissions control devices in tact,
- and to keep emmissions parts manufacturers in bussiness. Just my $.02
-
- Mike Golden - mgolden@cwis.unomaha.edu
-
- P.S. I drove an '80 chevette with the AIR pump disconnected for three years
- and actually gained a few HP. My brother's Malibu has the AIR pump
- disconnected and it runs in the 15s on a bone stock 350.
-
-