[Healeys] SU slow run valve or open throttle coninued

[Bob Spidell]

Did it prevent run-on?


On 7/7/2024 11:02 PM, WILLIAM B LAWRENCE via Healeys wrote:
> The TR 6 (circa 1974) had a solenoid valve that dumped manifold vacuum 
> when the ignition switch was turned off.
>
> Bill L awrence
> ------------------------------------------------------------------------
> *From:* Healeys <healeys-bounces at autox.team.net> on behalf of Michael 
> Salter via Healeys <healeys at autox.team.net>
> *Sent:* Sunday, July 7, 2024 10:01 PM
> *To:* goldengt <goldengt at cal.net>
> *Cc:* AustinHealeylist <healeys at autox.team.net>
> *Subject:* Re: [Healeys] SU slow run valve or open throttle coninued
> The later model MGB used an "Anti Run-on Valve" which subjected the 
> float chambers to manifold vacuum when the key was turned off. I  
> would think one could be installed on a BJ8 without too much difficulty.
>
> M
>
> On Sun., Jul. 7, 2024, 5:11 p.m. Ken Freese via Healeys, 
> <healeys at autox.team.net> wrote:
>
>     I already do the dump the clutch technique.
>     I have found that that the slower the idle the less run on,
>     probably due
>     to less fuel present.
>     In a round about way my question was probably which idle technique
>     gives
>     a leaner mixture? Maybe at a specified idle speed the mixtures are
>     the
>     same.
>     Since American cars of the 70's used idle solenoids, I am thinking I
>     could put on a solenoid for the idle with ignition off. When
>     ignition is
>     off the throttle blades go completely closed. Combined with a low
>     idle I
>     might be less irritated.
>     Ken Freese
>     65 BJ8
>
>     On 2024-07-05 11:54, Ken Freese via Healeys wrote:
>     > Which technique will minimize dieseling on my BJ8, using the
>     slow run
>     > valve for a low idle or closing the slow run valve and using the
>     > throttle screw for a low idle? Joe Curto hasn't responded yet.
>     > I know an aluminium head would fix the whole high compression
>     problem,
>     > but I am not there yet.
>     > Thanks,
>     > Ken Freese
>     > 65 BJ8
>
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