[Healeys] HD8 adjustment

[Chris Dimmock]

See. That's why the DHMCo fitted webers.
Triple 45 DCOEs are far easier to set up and maintain.
;-) <== That's a smilie. With a wink.
Love my triple webered Healey.
:-) <== that's just a smile
I do love my triple webers. Oh. And I haven't "adjusted" my webers for at
least 10 years
;-)
Chis

Sent from my iPhone

On 08/04/2012, at 10:30 PM, "BJ8 Healeys" <sbyers at ec.rr.com> wrote:

> Gary, I have reviewed the several differente sources available to me on
> adjustments of the HD8 carburetor, and I have to agree that they all
specify
> using the "Slow Run Valves" (only), to control the idle speed, with the
fast
> idle screws being used to control the fast idle through the choke when the
> engine is cold.  I'll update and correct my procedures based on that.
> Thanks for pointing it out.
> My annual tune-up will occur soon, and I'll see how the updated procedures
> work for me.   The procedures as they are have been working fine for me for
> several years and it will be interesting to see how the change makes a
> difference.
>
> The re-review of the various sources (workshop manual, SU manual, Chilton's
> and Glenn's repair manuals) reminded me again how confusing they all are in
> using different nomenclature for the same part, different idle speeds,
> referring to other sections that don't apply, etc.
>
> Steve Byers
> HBJ8L/36666
> BJ8 Registry
> Havelock, NC  USA
>
> From: warthodson at aol.com [mailto:warthodson at aol.com]
> Sent: Saturday, April 07, 2012 8:08 PM
> To: sbyers at ec.rr.com; healeys at autox.team.net
> Subject: Re: [Healeys] HD8 adjustment
>
> Steve,
> I have a copy of your excellent instructions & follow the procedure with
one
> significant exception. Your instructions state that the slow run valves
> (what I called the idle screws) are used to set the Idle at 500 RPM, then
> (after the mixture & balance are set) the fast idle screw is used to raise
> the idle to 1000 RPM.
> The exception is, that it is my understanding that, the idle should be set
> entirely with the slow run valve & the fast idle screws are set so that
they
> are not in contact with what you call the throttle shaft stop lever. The
> fast idle screw should only contact the throttle shaft stop lever when the
> choke is pulled out. The choke actually performs two functions in sequence,
> (1) is to raise the idle speed & (
.....