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Path: utzoo!watmath!clyde!cbosgd!ihnp4!houxm!vax135!cornell!uw-beaver!apollo!jimv
From: jimv@apollo.uucp (James Vienneau)
Newsgroups: net.auto.tech
Subject: Re: Causes of pinging
Message-ID: <2a8c8ac0.46b9@apollo.uucp>
Date: Thu, 5-Dec-85 16:15:22 EST
Article-I.D.: apollo.2a8c8ac0.46b9
Posted: Thu Dec  5 16:15:22 1985
Date-Received: Sat, 7-Dec-85 20:31:20 EST
References: <1@vaxine.UUCP> <738@ihu1g.UUCP>
Organization: Apollo Computer, Chelmsford, Mass.
Lines: 10

> Discussion of steam cleaning the INSIDE of you're engine....
> Has anyone else tried this???  I have never heard of doing this before
> and would like more than one opinion before drownding any engine I work
> on.

I have used this OLD trick for years. I usually just use a garden hose and set it
with about a 1/4" trickle. Then set the engine on fast idle and hold the hose over
the carb. It has usually helped with pinging problems and never done any damage.
There is also commercial upper cylinder cleaners available. One I used to use alot
was called "carbon out" I think. I'm also pretty sure GM sells one. GOOD LUCK