Been a while since I worked on horns, but IIRC:
- the vibrations needed to produce sound are produced by points--not dissimilar
to the ones in the distributor--that open and close rapidly to vibrate a voice
coil, i.e. a 'speaker'
- the points gaps need to be set (just like the points in a distributor)
- the gap is measured in inches ("ins.")
- so, the gap for one of the horns (you listed "High Note" twice) would be
0.019-0.022 inches--i.e. from 19 thousandths of an inch to 22 thousandths of an
inch
- again, working from memory, but there must be a set screw or something to
limit the travel of the points arm to within the spec
Cheers,
Bob
--------------------------------
Bob Spidell - San Jose, CA
----- Original Message -----
From: "Tadeusz Malkiewicz" <tadeusz.malkiewicz@plusnet.pl>
To: healeys@autox.team.net
Sent: Wednesday, January 20, 2010 8:46:50 AM GMT -08:00 US/Canada Pacific
Subject: [Healeys] HF1746/47/48 horns assembly
Hello,
I am trying to understand the Workshop instructions for the horns and have a
small problem - what is AIR GAP SETTING? And what are the following values:
High Note 0.019-0.022 ins.
High Note 0.024-0.026 ins.
What are "ins."?
I do understand how to regulate it, but what are these values??
Best, Tadek
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