Scanner problems

[Jason Weir]

Scot Sealander wrote:

>
>
> They are both reading right....  You have to keep in mind the
> reference
> of both.  The scanner is reporting absolute pressure in the manifold,
> which is referenced from 0 inches of absolute pressure.  So the
> scanner
> value is 10 inches of mercury above 0.
>
> The vacuum gauge is reporting reduced barometric pressure in the
> manifold.  That is, reduced from normal atmospheric pressure of about
> 30 inches of mercury.
>
> Ideally the two values would add up to about 30.  You have 10 inches
> and 18 inches, or about 28 inches total, a reasonable value.

Woah!!!!! I think I just went into sensory overload... Not sure I
understood all that but it sounds good. ;)

--
Jason Weir - 88 YJ - 258 / Howell TBI  145K and counting
Fayetteville, North Carolina
JTW Web pages at http://home.att.net/~jweir
mailto:jweir at worldnet.att.net