[ROVERNET - UK] Vacuum Gauge Connection

jpsco44 at aol.com jpsco44 at aol.com
Sun Feb 11 17:48:05 GMT 2007

hi steve !

if your intention is  to monitor the manifold vacuum ( i assume ) , be 
careful to tap before the check valve. if you tap after the valve , you 
will be monitoring the servo vacuum instead.
the valve is fixed to the manifold , and the rubber hose attaches to it.
when i got my present 2000tc the previous owner had installed extra 
gauges , and the vacuum gauge was reading the servo.
he had tapped the rubber hose going to the servo with a "T" connector.
if you did it wrong , just turn the engine off , and if the gauge still 
reads vacuum you are measuring the servo.
the easiest way is to connect the gauge is in parallel with the vacuum 
advance line, by bifurcating the vacuum advance port at the manifold.

do the diagnostics before you junk the gauge , it may be innocent !


-----Original Message-----
From: jaoa27 at verizon.net
To: rovernet at lyris.ccdata.com
Sent: Sun, 11 Feb 2007 1:59 AM
Subject: [ROVERNET - UK] Vacuum Gauge Connection

   A while back I installed 3 supplementary gauges on my 1969 TC. The 
gauge has been erratic and I may replace it. Before I do, I was 
wondering if there is a better place to tap into for the vacuum?
  I am currently tapped into the hose from the intake manifold that 
feeds the brake boosters. Maybe that is dangerous!
  Here is a pic of the gauges and the car as well. I think I may have 
posted these before(?)

 Thank you!

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