[Healeys] OD switch

[Simon Lachlan]

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 <mailto: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
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