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- Newsgroups: rec.models.rc
- Path: sparky!uunet!ftpbox!mothost!white!rtsg.mot.com!svoboda
- From: svoboda@rtsg.mot.com (David Svoboda)
- Subject: Re: Plugs
- Message-ID: <1992Dec17.194920.4978@rtsg.mot.com>
- Sender: news@rtsg.mot.com
- Nntp-Posting-Host: guppie44
- Organization: Motorola Inc., Cellular Infrastructure Group
- References: <11286@iex.uucp> <1195667329@trsvax>
- Date: Thu, 17 Dec 1992 19:49:20 GMT
- Lines: 22
-
- In article <1195667329@trsvax> earl@trsvax.tandy.com writes:
- |
- |7-10 years old, sounds like your losing some compression, the cylinder to
- |piston fit is probably getting loose.
-
- Speaking of that, I am, in addition to being a RC model airplane guy, an
- avid motorcyclist and motorcycle mechanic. One of the most common
- diagnostic tools we use to determine engine condition is a compression
- tester. I use an automotive tester with a special adapter for the smaller
- motorcycle plug threads.
-
- Has anyone ever heard of a small-volume compression tester for model
- airplane engines? I would think that actually seeing quantitative
- values for compression would be a great diagnostic tool for our
- motors. I envision just unscrewing the plug, screwing in the little
- tester, and using a starter to spin the motor and get a reading. You
- would be able to tell when a motor was getting broken in, as the
- compression comes up to spec, so you would know when to peak the
- mixture, and when it was getting worn out, so you could increase
- the castor and/or replace things.
-
- Dave Svoboda, Palatine, IL
-