REFLECTOR: Carburetor Heat Flap

[hoffman3 at erols.com]

When you look into the scoop with carb heat on you should see the heads of
2 #4-40 screws holding the flap on the shaft. The shaft lever should be on
the Pilot Side.

I remember this because years ago the 2 screws came out, and I lost power
for a few seconds after lift off. Found the heat flap resting at the bottom
of the box with no compression in #6 cylinder. I removed the cylinder and
had two new valves installed.

Carl Hoffman 

Original Message:
-----------------
From: John Dibble aminetech at bluefrog.com
Date: Mon, 22 Jun 2009 11:39:53 -0500
To: reflector at tvbf.org
Subject: REFLECTOR: Carburetor Heat Flap


Vibration is chewing up my carburetor heat mechanism.  I think the problem
is that the
flap is mounted off center on the pivot bolt with the longer side facing
forward
creating instability in the air flow.  I plan to reverse it so the longer
side faces
rearward.  The problem is that there is limited room with the reverse
orientation, so I
would like to mount the flap as close to center as possible, but not have
instability.
Any ideas as to how much longer the rear side needs to be?

John

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