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Re: [Healeys] Another O/D issue

To: <kags@shaw.ca>, "'Bob Spidell'" <bspidell@comcast.net>
Subject: Re: [Healeys] Another O/D issue
From: <m.g.sharp@sympatico.ca>
Date: Thu, 16 Jun 2022 07:41:30 -0400
Cc: 'Healey List' <healeys@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <005001d88129$774e6be0$65eb43a0$@sympatico.ca> <7c7c09b1-7986-b48c-b036-3927a44b16fa@comcast.net> <000001d8813e$2f0fa6e0$8d2ef4a0$@shaw.ca>
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Thanks Earl/Bob =E2=80=93 I was hoping the switch would be adjustable.  =
I will find time to get the g=E2=80=99box cover off (ugh!) and adjust =
it.  I have another g=E2=80=99box, so if that does not work I can =
=E2=80=9Cswitch=E2=80=9D some parts =F0=9F=98=8A.

=20

Cheers, Mirek

=20

From: kags@shaw.ca <kags@shaw.ca>=20
Sent: June 16, 2022 1:02 AM
To: 'Bob Spidell' <bspidell@comcast.net>
Cc: m.g.sharp@sympatico.ca; Healey List <healeys@autox.team.net>
Subject: RE: [Healeys] Another O/D issue

=20

Hi Marek.  Had the same thing happen to me years ago on my BJ8. Same =
design different arrangement on the centre shifts as on the side shifts =
=E2=80=93 same switch part# for all.  Bob is right =E2=80=93 the switch =
setting (not a tapered thread) is done with the fibre washer as a shim.  =
The ball end activator on the switch wears with mileage =E2=80=93 the =
switch has to be moved a bit inward to make up for the wear.  A thinner =
washer (or maybe even no washer) will do the trick. As Bob says, just =
don=E2=80=99t jam it.

=20

Earl Kagna

Victoria BC

BJ8, BT7 tri-carb

=20

=20

=20

From: Healeys <healeys-bounces@autox.team.net> On Behalf Of Bob Spidell
Sent: Wednesday, June 15, 2022 8:22 PM
To: healeys@autox.team.net
Subject: Re: [Healeys] Another O/D issue

=20

The switch may be pipe thread, but you set its depth with shims (which =
are just fiber washers), part# 134 in this diagram:

https://mossmotors.com/external-gearbox-4-speed-side-shift

The lever on the shift rod (#94) bumps the switch; it only presses =
against the switch, closing its contacts, in 3rd & 4th. Pushing the =
lever to the right pushes the shift rod to the left into the switch. If =
you have a 'shim' under the switch, removing it, or putting a thinner =
one in, should solve the problem (the tip of the switch has limited =
travel, you don't want to jam it into the switch). If not, you'll need a =
new switch (contacts worn, maybe). Least likely, but not impossible, is =
a worn shift rod (they're brass).



On 6/15/2022 7:33 PM, m.g.sharp@sympatico.ca =

Hi listers, I am finding that my BT7 (i.e. sideshifter) is dropping out =
of overdrive if I wiggle the shift lever to the left.  This is without =
doubt opening the contact in the gearbox switch that only permits the =
O/D to operate in 3rd and 4th thus causing the O/D to disengage.  =
Pushing the lever to the right re-engages it. I do not recall any =
adjustment on the switch to screw it in further, in fact I think it is a =
pipe thread and will only go in so far.  I am not sure what part of the =
shift lever actually bears on the end of the switch to engage it.  The =
workshop manual is not much help in figuring it out.  Is it the switch =
or is it what ever it bears on when in 3rd or 4th?   I have not had the =
g=E2=80=99box cover off to look at it yet but thought I=E2=80=99d ask =
the list if anyone had encountered this. =20

=20

Thoughts and ideas?

=20

=20

=20

=20

=20


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=20


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vlink=3Dpurple style=3D'word-wrap:break-word'><div =
class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'>Thanks Earl/Bob =E2=80=93 I was =
hoping the switch would be adjustable.=C2=A0 I will find time to get the =
g=E2=80=99box cover off (ugh!) and adjust it.=C2=A0 I have another =
g=E2=80=99box, so if that does not work I can =E2=80=9Cswitch=E2=80=9D =
some parts </span><span style=3D'font-family:"Segoe UI =
Emoji",sans-serif;mso-fareast-language:EN-US'>&#128522;</span><span =
style=3D'mso-fareast-language:EN-US'>.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:EN-US'>Cheers, =
Mirek<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'><o:p>&nbsp;</o:p></span></p><div><di=
v style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm'><p class=3DMsoNormal><b><span =
lang=3DEN-US>From:</span></b><span lang=3DEN-US> kags@shaw.ca =
&lt;kags@shaw.ca&gt; <br><b>Sent:</b> June 16, 2022 1:02 =
AM<br><b>To:</b> 'Bob Spidell' =
&lt;bspidell@comcast.net&gt;<br><b>Cc:</b> m.g.sharp@sympatico.ca; =
Healey List &lt;healeys@autox.team.net&gt;<br><b>Subject:</b> RE: =
[Healeys] Another O/D issue<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal><span =
lang=3DEN-US>Hi Marek.&nbsp; Had the same thing happen to me years ago =
on my BJ8. Same design different arrangement on the centre shifts as on =
the side shifts =E2=80=93 same switch part# for all.&nbsp; Bob is right =
=E2=80=93 the switch setting (not a tapered thread) is done with the =
fibre washer as a shim.&nbsp; The ball end activator on the switch wears =
with mileage =E2=80=93 the switch has to be moved a bit inward to make =
up for the wear.&nbsp; A thinner washer (or maybe even no washer) will =
do the trick. As Bob says, just don=E2=80=99t jam =
it.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>Earl Kagna<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>Victoria BC<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>BJ8, BT7 tri-carb<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm'><p class=3DMsoNormal><b><span =
lang=3DEN-US>From:</span></b><span lang=3DEN-US> Healeys =
&lt;healeys-bounces@autox.team.net&gt; <b>On Behalf Of </b>Bob =
Spidell<br><b>Sent:</b> Wednesday, June 15, 2022 8:22 PM<br><b>To:</b> =
healeys@autox.team.net<br><b>Subject:</b> Re: [Healeys] Another O/D =
issue<o:p></o:p></span></p></div></div><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><span lang=3DEN-US>The switch may be pipe =
thread, but you set its depth with shims (which are just fiber washers), =
part# 134 in this diagram:<br><br><a =
href=3D"https://mossmotors.com/external-gearbox-4-speed-side-shift";>https=
://mossmotors.com/external-gearbox-4-speed-side-shift</a><br><br>The =
lever on the shift rod (#94) bumps the switch; it only presses against =
the switch, closing its contacts, in 3rd &amp; 4th. Pushing the lever to =
the right pushes the shift rod to the left into the switch. If you have =
a 'shim' under the switch, removing it, or putting a thinner one in, =
should solve the problem (the tip of the switch has limited travel, you =
don't want to jam it into the switch). If not, you'll need a new switch =
(contacts worn, maybe). Least likely, but not impossible, is a worn =
shift rod (they're brass).<br><br><o:p></o:p></span></p><div><p =
class=3DMsoNormal><span lang=3DEN-US>On 6/15/2022 7:33 PM, <a =
href=3D"mailto:m.g.sharp@sympatico.ca";>m.g.sharp@sympatico.ca</a> =
wrote:<o:p></o:p></span></p></div><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><p =
class=3DMsoNormal><span lang=3DEN-US>Hi listers, I am finding that my =
BT7 (i.e. sideshifter) is dropping out of overdrive if I wiggle the =
shift lever to the left.&nbsp; This is without doubt opening the contact =
in the gearbox switch that only permits the O/D to operate in =
3<sup>rd</sup> and 4<sup>th</sup> thus causing the O/D to =
disengage.&nbsp; Pushing the lever to the right re-engages it. I do not =
recall any adjustment on the switch to screw it in further, in fact I =
think it is a pipe thread and will only go in so far. &nbsp;I am not =
sure what part of the shift lever actually bears on the end of the =
switch to engage it.&nbsp; The workshop manual is not much help in =
figuring it out.&nbsp; Is it the switch or is it what ever it bears on =
when in 3<sup>rd</sup> or 4<sup>th</sup>?&nbsp; &nbsp;I have not had the =
g=E2=80=99box cover off to look at it yet but thought I=E2=80=99d ask =
the list if anyone had encountered this.&nbsp; <o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US>Thoughts and =
ideas?<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p></blockquote><p =
class=3DMsoNormal><span lang=3DEN-US><o:p>&nbsp;</o:p></span></p><div =
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