Yes. The throttle switch keeps the overdrive engaged when the dash
switch is turned off. The overdrive will disengage when the throttle is
partially depressed.
http://www.team.net/www/healey/tech/big_hly/od/adj_trblsht_od.html
Cheers,
Bob Haskell
Austin Healey 3000 BN7/BT7 registrar
On 3/25/21 9:39 PM, Richard Kahn via Healeys wrote:
> But isn't that only if the dash switch is off? That is how my OD
> disengages.
>
> ------------------------------------------------------------------------
> *From:* Healeys <healeys-bounces@autox.team.net> on behalf of David
> Porter via Healeys <healeys@autox.team.net>
> *Sent:* Thursday, March 25, 2021 5:18 PM
> *To:* Bill Lawrence <ynotink@msn.com>; healeys@autox team. net
> <healeys@autox.team.net>; Oudesluys <coudesluijs@chello.nl>
> *Subject:* Re: [Healeys] overdrive problem
>
> Well, actually that is the job of the throttle position switch on the
> firewall. If the OD is engaged, mashing the gas pedal should make the
> OD to drop out.
>
>
>
> On March 25, 2021, at 5:11 PM, WILLIAM B LAWRENCE via Healeys
> <healeys@autox.team.net> wrote:
>
>
> Sorry, but the Laycock deNormanville overdrive is not supposed to kick
> down automatically. The most common fault that causes the OD to drop
> out is faulty o-rings on the accumulator sleeve. This won?t allow the
> OD to build full operating pressure.
>
> Bill Lawrence
> BN1 #554
> ------------------------------------------------------------------------
> *From:* Healeys <healeys-bounces@autox.team.net
> *Sent:* Tuesday, March 23, 2021 7:37 AM
> *Subject:* Re: [Healeys] overdrive problem
> That is the way it should be when accelerating hard, Kick down!!
>
> Kees Oudesluijs
>
>
> Op 23-3-2021 om 01:06 schreef healeymanjim via Healeys:
> > friends BT7 had o/d quit. solenoid was bad so replaced it. now it
> will go into o/d but pop out when accelerating. any
> > ideas what the cause is and the fix?
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