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- Newsgroups: rec.autos.tech
- Path: sparky!uunet!paladin.american.edu!darwin.sura.net!mlb.semi.harris.com!billy.mlb.semi.harris.com!jws
- From: jws@billy.mlb.semi.harris.com (James W. Swonger)
- Subject: Re: WHAT IS AN A-I-R PUMP ON A CHEVY CAPRICE ENGINE?
- References: <1993Jan20.170415.5141@porthos.cc.bellcore.com> <1993Jan20.230149.3129@news.unomaha.edu> <1993Jan22.082111.165610@dstos3.dsto.gov.au>
- Date: Fri, 22 Jan 1993 14:32:22 GMT
- Nntp-Posting-Host: billy.mlb.semi.harris.com
- Organization: Harris Semiconductor, Melbourne FL
- Sender: news@mlb.semi.harris.com
- Message-ID: <1993Jan22.143222.23799@mlb.semi.harris.com>
- Lines: 22
-
- Taking out the air pump will leave the catconv without any air to react
- with the HC/CO in the exhaust. Your tailpipe may have an illegal aroma
- and there's a small chance of fouling the cat more quickly if the mixture
- is way off. There's a simple solution, of course.
-
- Leaving an air pump connected but undriven may let exhaust gases flow in
- the reverse direction - there's no air flow to stop them. This might cause
- damage or crud to collect there.
-
- Removing the air pump entirely leaves an exhaust gas path (from the exhaust
- manifold(s) octopus to the air pump outlet) to the engine compartment. The
- opening would have to be plugged tightly and nonflammably, or the entire
- octopus removed and plugs installed in its place, or the octopus broken
- off and the tube ends crimped and maybe brazed. Plugs are best, and the
- air pump system can be saved in its entirety in case your locale goes
- ecophrenic.
-
- --
- ##########################################################################
- #Irresponsible rantings of the author alone. Any resemblance to persons #
- #living or dead then yer bummin. May cause drowsiness. Alcohol may inten-#
- #sify this effect. Pay no attention to the man behind the curtain. Billy!#
-