[DeTomaso] Mech vs electric oil pressure gauges
Ken Green
kenn_green at yahoo.com
Sun Oct 7 23:33:22 EDT 2007
Reading the description, the electric gauge I looked at has a stepper motor:
http://www.autometer.com/cat_gaugedetail.aspx?ref=search&gid=3130
I guess that's why it's expensive? The sender may include an A to D converter etc, and be pretty accurate. But for the $s, the mechanical gauge looks pretty good.
Ken
hoppe1 <hoppe1 at cox.net> wrote:
It has been my experience that since the voltage varies so much in a pantera
electric gauges vary with the voltage change.
I personally like mechanical gauges
Rich
----- Original Message -----
From:
To:
Sent: Sunday, October 07, 2007 7:47 AM
Subject: [DeTomaso] Mech vs electric oil pressure gauges
> All,
>
> I recently searched out a matching oil temperature gauge to the existing
> VDO Cockpit (1st Series)
> style gauges already in 2511.
>
> I learned that the VDO "mechanical" oil temp gauge does NOT have oil in
> the tube.?
> What this gauge is actually doing is measuring the expansion of ether -
> not engine oil -
> in a closed tubing system.? The tubing length is fixed at the factory and
> cannot be
> shortened by the user.
>
> I did a web search just now on this, and found OEM water/oil temp gauges
> and OEM
> water/oil pressure gauges BOTH work on the ether expansion principal.
>
> So if the presence of hot oil or water in the cabin is of concern in your
> choice of gauges,
> determine if your chosen gauge is using actual engine fluid or a
> closed-tubing ether system.
>
> Larry
>
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