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Subject: Re: [worldcruising] Diesel problems
From: R Hepler (roberthepler@XXX.XXX)
Date: Thu Aug 09 2001 - 20:34:01 EDT
PSI and inches are not comparable units...
PSI is a self-supporting (complete) unit, whereas inches requires another
bit of information: namely the density of the fluid being used to determine
the "Inches". Mercury being the most common, IMHO. One atmosphere is
14.7+/- psi and (about) 30" of mercury. so 3 psi would be equal to
3/14.7*30=6" of Hg
Of course, what this really boils down to is how many gradations show onthe
face of the gauge. Are there 30? then it's inches of Hg. Are there 14?
Probably psi... ;-)
-Rob
----- Original Message -----
From: <truelove39@XXX.XXX>
To: <worldcruising@XXX.XXX>
Sent: Thursday, August 09, 2001 4:58 PM
Subject: Re: [worldcruising] Diesel problems
> Do you mean 3 in of vacuum?
>
> John
>
> > The RACOR vacuum gauge on top of the filter is
> > reading 3 psi. Do I ne
>
>
> "Thinking is the hardest work there is, which is the probable reason so
few
> engage in it." - Henry Ford
>
>
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