[Healeys] OD switch

[Bob Spidell]

Note the kickdown can be used to, uh, kick down. Say you're following 
slow traffic in top/OD, and you see a chance to pass coming up; you 
throw the dash switch and when it's clear you stomp on the accelerator 
pedal, the O/D will disengage and you're in a lower gear to pass. 
Doesn't work great--I usually drop a gear too--but it's doable. Note 
older cars with automatics usually have them, rigged to the throttle 
linkage.

Triumphs, and others, also have a beefier accumulator for faster 
engagement (a mod sold by DWM and others).


On 10/18/2024 4:44 PM, Simon Lachlan via Healeys wrote:
>
> Michael,
>
> Yes, agreed. He said the same to me in a discussion as to why Triumphs 
> don’t have the kickdown whereas the Healeys do. Actually that wasn’t 
> long after your visit.
>
> (Dave Twigger is pretty much The Man in the UK overdrive world. So far 
> as I recall, his father-in-law bought all the overdrive spares when 
> Laycock stopped manufacturing. Or something like that. Bit like Fred 
> at AH Spares? He’s a nice guy, very helpful.)
>
> Simon
>
> *From:*Healeys <healeys-bounces at autox.team.net> *On Behalf Of *Michael 
> Salter
> *Sent:* 18 October 2024 23:25
> *To:* Don Day <fsufan1952 at yahoo.com>
> *Cc:* healey list <healeys at autox.team.net>
> *Subject:* Re: [Healeys] OD switch
>
> As explained to me Dave Twigger the purpose of the kickdown switch is 
> to prevent the overdrive unit being subjected to reverse torque which 
> it is not designed to handle.
>
> As I  understand it, if the overdrive is treated with respect, and the 
> clutch is used during disengagement there will be no problems but, if 
> you flip the switch off when cruising at high speed without using the 
> clutch to minimize the reverse loading on the overdrive, the planetary 
> gear assembly can be severly damaged.
>
> The kickdown switch prevents this.
>
> M
>
> On Fri., Oct. 18, 2024, 4:18 p.m. Don via Healeys, 
> <healeys at autox.team.net> wrote:
>
>     Hi All
>           I installed the new OD brass drain plug with the o ring and
>     so far 🤞🏻not a drip of oil anywhere. I think it’s a great design
>     by Cape International.
>     I did see someone posted about eliminating the od switch on the
>     firewall and just needing to use the switch on the dash . No more
>     needing to Blip the throttle to activate the od . Could that
>     someone please explain the wiring needed to make this change . It
>     sounds like another modern up grade to make our driving experience
>     easier.
>           Thanks as always , Don
>     Sent from my iPhone
>     _______________________________________________
>     Support Team.Net http://www.team.net/donate.html
>     Suggested annual donation  $12.75
>
>     Archive: http://www.team.net/pipermail/healeys
>     http://autox.team.net/archive/healeys
>
>     Healeys at autox.team.net
>     http://autox.team.net/mailman/listinfo/healeys
>
>     Unsubscribe/Manage:
>     http://autox.team.net/mailman/options/healeys/michaelsalter@gmail.com
>     <http://autox.team.net/mailman/options/healeys/michaelsalter@gmailcom>
>
>
> _______________________________________________
> Support Team.Nethttp://www.team.net/donate.html
> Suggested annual donation  $12.75
>
> Archive:http://www.team.net/pipermail/healeys http://autox.team.net/archive/healeys
>
> Healeys at autox.team.net
> http://autox.team.net/mailman/listinfo/healeys
>
> Unsubscribe/Manage:http://autox.team.net/mailman/options/healeys/bspidell@comcast.net
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/healeys/attachments/20241018/e2903480/attachment.htm>