[Healeys] PVC value question

[John Sims]

That is the way that the person who owns a tri-carb wrote it up to me and
supplied the photo. I do not remember who that was as that was quite some
time ago.

John Sims, BN6
Aberdeen, NJ

www.healey6.com

-----Original Message-----
From: healeys-bounces at autox.team.net [mailto:healeys-bounces at autox.team.net]
On Behalf Of john spaur
Sent: Saturday, December 15, 2012 7:17 PM
To: healeys at autox.team.net
Subject: [Healeys] PVC value question

An article on John Sim's website shows the installation of a PVC valve.
However, the vacuum source is from the intake manifold on the front
carburetor for a tri-carb.

Why can't the vacuum source come from the rear carb air filter where the
existing crankcase ventilation hose connects?

Thank you,

John Spaur
'62 BT7