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Re: Fw: Oil Gauge

To: Dave Yealy <lbc@littlebitcountry.com>
Subject: Re: Fw: Oil Gauge
Date: Fri, 21 Jun 2002 18:46:23 -0700
Cc: Spridgets <spridgets@autox.team.net>
References: <000c01c21940$387fdbe0$26e1d23f@computer> <>
     I would say it would be best to take it to an instrument rebuilder.  Maybe
someone on the list knows more about this.

Dave Yealy wrote:

> Is there a way to calibrate a dual "Smith's" gauge?
> Mine reads 10 lbs (hot) at 800 rpm idle and 45 lbs while running.
> Dave
> 60 Bugeye
> At 05:33 PM 6/21/2002 -0700,
> >My Bugeye reads "5 PSI" at hot idle and "43 PSI" at hot speed.  This
> >worried me,
> >so I connected a CALIBRATED oil pressure test gauge in line with the gauge
> >line.
> >The 5 PSI reading was actually 20 PSI and the 43 PSI hot reading was
> >actually a
> >little over 60 PSI!  This "off" gauge reads over 20 psi cold at idle and
> >80 psi
> >at speed.  If I interpolate this, my cold pressures are somewhere around 
> >PSI at idle and 95 PSI at speed until warmed up.  Calibrate the gauge next
> >time
> >and you might be surprised, even if it is reading "normal"!
> >Mike MacLean-60 Sprite

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