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- From: csmith@plains.NoDak.edu (Carl Smith)
- Subject: Re: WHAT IS AN A-I-R PUMP ON A CHEVY CAPRICE ENGINE?
- Sender: usenet@ns1.nodak.edu (News login)
- Message-ID: <C18L13.E20@ns1.nodak.edu>
- Date: Fri, 22 Jan 1993 03:43:50 GMT
- References: <1993Jan20.170415.5141@porthos.cc.bellcore.com> <1993Jan20.230149.3129@news.unomaha.edu>
- Nntp-Posting-Host: plains.nodak.edu
- Organization: North Dakota Higher Education Computing Network
- Lines: 33
-
- In article <1993Jan20.230149.3129@news.unomaha.edu> mgolden@cwis.unomaha.edu (Brian Golden) writes:
- >sim@staircase.bae.bellcore.com writes:
- >> Can somebody please enlighten me as to what is involved in replacing a
- >> noisy A-I-R pump on an '86 chevy caprice?
-
- > Option three: Just disconnect the pully and get a shorter fan belt,
- >so that you can reconnect it come inspection time!
-
- I don't think that taking the belt off is a good idea. I did that
- and saw no significant increase in power or fuel economy. But a
- few months later I noted that the pump was seized solid. It turns
- out that the check valve was stuck open, which filled the diverter
- valve and the air pump with the same black carbon that currently
- coats the inside of my tailpipe (so my engine is out of tune..).
- To fix the problem I took the pump off and poured various solvents
- into it but nothing broke up the gunk. So I soaked it for a week
- in brake fluid, which broke up the gunk. I then wrapped a cloth
- around a drill bit, coated the cloth with rubbing compound and
- polished the inside surface of the pump and the rotor. The pump
- works great now. A new check valve cost me $14.95 and a couple
- hours of trying to fit wrenches into a space no bigger than the
- valve to replace. So, all in all it cost me $14.95 and quite a
- few hours of work to get the system running again, just because
- I thought it might save some gas & give me more power... I also
- think that taking the belt off might have caused the check valve
- to go bad in the first place, due to the larger pressure
- difference.
-
-
- --
- ------------------------------------------------------------------------
- Carl D. Smith Inhale to the chief!
- csmith@plains.nodak.edu
-