Mark,
The whole point of the throttle switch is to move a cam in order to open
the points and break the electrical current, nothing more and nothing
less. Be it 1/5 more or less, it could be measured in several areas if
you see fit, gas pedal travel would be my first guess; I just use
measurement given in the shop manual. Did I measure mine, No, does it
work, well yes. I set mine as described previously and fine adjusted by
testing it. I have heard that some of the aftermarket switches have to
be set horizontal but have never seen it personally. This switch
doesn't have any mystery parts lurking inside and I am amazed at how
misunderstood it is, take one apart and look. The best diagrams and
info on the subject have been presented by Norman Nock Ref. Austin
Healey Magazine April 1993 AND page 15, 230 in his Tech talk. If
you don't have this book get it because it is a must have for any healey
owner.
HTH
Don
57' BN4
-----Original Message-----
From: owner-healeys@Autox.Team.Net [mailto:owner-healeys@Autox.Team.Net]
On Behalf Of Mark and Kathy
Sent: Sunday, January 21, 2007 6:10 AM
To: healeys@Autox.Team.Net
Subject: Re: Annaul overdrive snafu
Don, or anybody. The last time I had to measure 1/5th of something
was
????? let me see ???? "never".
Where is the best place to observe this measurement. At the gas pedal,
the
carb throttle linkages, the throttle switch lever,
the carb lever shaft, the butterfly valves? Where exactly should one
be
looking and measuring 1/5th.
I have read this over and over in the manual and that measurement
always
baffled me. Right now I can hear my switch kick in but am not sure of
the
timing that it kicks. Of course I am doing this with the engine off
and
just pushing down on the gas pedal
Presently I have no shrouds on, dash is out etc. so I can see
everything
pretty well if some one could tell me where to measure.
Or as Don suggested, can the "throttle switch shaft slot" be set to
vertical
and thats it? Could it be that simple ladies and gentelmen, please
say
its
true?
Thank you , Mark
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