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RE: [TR] TR3A Vacuum Gauge

from [Randall] [Permanent Link][Original]
To: "Triumph List" <triumphs@autox.team.net>
Subject: RE: [TR] TR3A Vacuum Gauge
From: "Randall" <tr3driver@comcast.net>
Date: Tue, 4 Jul 2006 14:22:06 -0700 
> Will be installing a vacuum gauge on my 59 - TR3A. The only place I can think
> to tap into is the vacuum advance line to the front carb. Any thoughts?

The vacuum advance line is "ported" vacuum, not manifold vacuum.  In particular,
it sees almost no vacuum with the engine idling (throttle closed).

I drilled and tapped a hole into the balance tube.

Randall


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