[Healeys] overdrive problem

Richard Kahn tahoehealey at hotmail.com
Thu Mar 25 22:52:19 MDT 2021


Interesting that he calls for non detergent oil. We have had this discussion often in the past. That has always been my preference.

________________________________
From: Bob Haskell <rchaskell at earthlink.net>
Sent: Thursday, March 25, 2021 7:31 PM
To: Richard Kahn <tahoehealey at hotmail.com>; Bill Lawrence <ynotink at msn.com>; healeys at autox team. net <healeys at autox.team.net>; Oudesluys <coudesluijs at chello.nl>; David Porter <frogeye at porterscustom.com>
Subject: Re: [Healeys] overdrive problem

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 at autox.team.net> on behalf of David
> Porter via Healeys <healeys at autox.team.net>
> *Sent:* Thursday, March 25, 2021 5:18 PM
> *To:* Bill Lawrence <ynotink at msn.com>; healeys at autox team. net
> <healeys at autox.team.net>; Oudesluys <coudesluijs at 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 at 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 at autox.team.net
> <mailto:healeys-bounces at autox.team.net>> on behalf of Kees Oudesluijs
> via Healeys <healeys at autox.team.net <mailto:healeys at autox.team.net>>
> *Sent:* Tuesday, March 23, 2021 7:37 AM
> *To:* healeys at autox.team.net <mailto:healeys at autox.team.net>
> <healeys at autox.team.net <mailto:healeys at autox.team.net>>
> *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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