[DeTomaso] Mech vs electric oil pressure gauges
Peter Kovacs
peter-kovacs at sbcglobal.net
Sun Oct 7 11:53:45 EDT 2007
The same "safety issue" can be addressed by using an isolator for fuel pressure guages. A diaphram allows the pressure to be read at the guage but no fuel or fuel supply ever gets near the passenger compartment.
Peter Kovacs
Property Equity & Mortgage Mgmt
209 345-6708
209 523-4919 fx
----- Original Message ----
From: "fresnofinches at aol.com" <fresnofinches at aol.com>
To: detomaso at realbig.com
Sent: Sunday, October 7, 2007 7:47:55 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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