Re: [Healeys] Lay Gear End Float

[Harold Manifold <manifold@telus.net>]

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Hank,

The gear box is a BN4 Sideshift for a Healey 100-6. I have a Healey BT7
with a November 1960 build date but when I took the car apart I discovered
the BN4 gearbox. Your article is perfect and confirms my suspicion the end
float should be 0.001" to 0.003".

Thanks... Harold

On Tue, Jan 9, 2024 at 1:01=E2=80=AFPM Hank Leach <gradea1@charter.net> wro=
te:

> Hi Harold- you do no mention the GB # or series you are assembling.  Ther=
e
> was a modification in the side shift  unit around 1962 in bushings and
> baulk rings just before it became a center shift.
>
> However, the specs for the laygear is similar for most all BMC boxes. Her=
e
> is the passage from the Service Manual for the 100 gearbox which really
> also applies to the later 4spd. and center shift assemblies.
>
> Hope this helps to guide you. Regards, Hank (healeyhelper.com)
>
> --------------------
>
> From: "Harold Manifold" <manifold@telus.net>
> To: "Healey List" <healeys@autox.team.net>
> Sent: Tue, Jan 09 2024 10:25 AM
> Subject: [Healeys] Lay Gear End Float
> I will be assembling my Side Shift Gearbox soon. As I am going through th=
e
> parts list I noticed the rear thrust washer for the Lay Gear is available
> in different thickness which suggests there is a specification for the en=
d
> float. The thrust washers come in 0.003" increments which would suggest a=
n
> end float of 0.001" to 0.003".
>
> Does that sound right?
>
> Thanks... Harold
>
>
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<div dir=3D"ltr">Hank,<div><br></div><div>The gear box is a BN4 Sideshift f=
or a Healey 100-6. I have a Healey BT7 with a November 1960 build date but =
when I took the car apart I discovered the BN4 gearbox. Your article is per=
fect and confirms my suspicion=C2=A0the end float=C2=A0should be 0.001&quot=
; to 0.003&quot;.</div><div><br></div><div>Thanks... Harold</div></div><br>=
<div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Tue, Ja=
n 9, 2024 at 1:01=E2=80=AFPM Hank Leach &lt;<a href=3D"mailto:gradea1@chart=
er.net">gradea1@charter.net</a>&gt; wrote:<br></div><blockquote class=3D"gm=
ail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,=
204,204);padding-left:1ex"><div>Hi Harold- you do no mention the GB # or se=
ries you are assembling.=C2=A0 There was a modification in the side shift=
=C2=A0 unit around 1962 in bushings and baulk rings just before it became a=
 center shift.</div>
<div>=C2=A0</div>
<div>However, the specs for the laygear is similar for most all BMC boxes. =
Here is the passage from the Service Manual for the 100 gearbox which reall=
y also applies to the later 4spd. and center shift assemblies.</div>
<div>=C2=A0</div>
<div>Hope this helps to guide you. Regards, Hank (<a href=3D"http://healeyh=
elper.com" target=3D"_blank">healeyhelper.com</a>)</div>
<div><br>-------------------- <br><br>From: &quot;Harold Manifold&quot; &lt=
;<a href=3D"mailto:manifold@telus.net"; target=3D"_blank">manifold@telus.net=
</a>&gt; <br>To: &quot;Healey List&quot; &lt;<a href=3D"mailto:healeys@auto=
x.team.net" target=3D"_blank">healeys@autox.team.net</a>&gt; <br>Sent: Tue,=
 Jan 09 2024 10:25 AM <br>Subject: [Healeys] Lay Gear End Float </div>
<div>I will be assembling my Side Shift Gearbox soon. As I am going through=
 the parts list I noticed the rear thrust washer for the Lay Gear is availa=
ble in different thickness which suggests=C2=A0there is a specification for=
 the=C2=A0end float. The thrust washers come in 0.003&quot; increments=C2=
=A0which would suggest an end float=C2=A0of 0.001&quot; to 0.003&quot;.
<div>=C2=A0</div>
<div>Does that sound right?</div>
<div>=C2=A0</div>
<div>Thanks... Harold</div>
</div>
<div>=C2=A0</div>
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