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Re: [Healeys] OD switch

To: Don Day <fsufan1952@yahoo.com>
Subject: Re: [Healeys] OD switch
From: Michael Salter <michaelsalter@gmail.com>
Date: Fri, 18 Oct 2024 18:25:05 -0400
Cc: healey list <healeys@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <F2B8D324-C65B-4C7A-9B5F-C85F70F74B62.ref@yahoo.com> <F2B8D324-C65B-4C7A-9B5F-C85F70F74B62@yahoo.com>
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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@autox.team.net>
wrote:

> Hi All
>       I installed the new OD brass drain plug with the o ring and so far
> =F0=9F=A4=9E=F0=9F=8F=BBnot a drip of oil anywhere. I think it=E2=80=99s =
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 grad=
e
> to make our driving experience easier.
>       Thanks as always , Don
> Sent from my iPhone
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>

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<div dir=3D"auto">As explained to me Dave Twigger the purpose of the kickdo=
wn switch is to prevent the overdrive unit being subjected to reverse torqu=
e which it is not designed to handle.<div dir=3D"auto">As I=C2=A0 understan=
d it, if the overdrive is treated with respect, and the clutch is used duri=
ng 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 revers=
e loading on the overdrive, the planetary gear assembly can be severly dama=
ged.=C2=A0</div><div dir=3D"auto">The kickdown switch prevents this.</div><=
div dir=3D"auto"><br></div><div dir=3D"auto">M</div></div><br><div class=3D=
"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Fri., Oct. 18, 2024,=
 4:18 p.m. Don via Healeys, &lt;<a href=3D"mailto:healeys@autox.team.net";>h=
ealeys@autox.team.net</a>&gt; wrote:<br></div><blockquote class=3D"gmail_qu=
ote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex=
">Hi All <br>
=C2=A0 =C2=A0 =C2=A0 I installed the new OD brass drain plug with the o rin=
g and so far =F0=9F=A4=9E=F0=9F=8F=BBnot a drip of oil anywhere. I think it=
=E2=80=99s a great design by Cape International. <br>
I did see someone posted about eliminating the od switch on the firewall an=
d 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. <br>
=C2=A0 =C2=A0 =C2=A0 Thanks as always , Don <br>
Sent from my iPhone<br>
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