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With all the chatter about the throw out bearing I am surprised no one has
mentioned the Denis Welch replacement. One caveat is you have to permanently
modify the cover plate by removing the center pad. The carbon throw out
bearing always seemed odd to me but I have no knowledge of why it was
designed that way. Could it have been state-of-the-art back in the day?
https://www.bighealey.co.uk/austin-healey/clutch-1
John
BT7 with a DW throw out bearing.
From: Healeys [mailto:healeys-bounces@autox.team.net] On Behalf Of Simon
Lachlan via Healeys
Sent: Wednesday, September 1, 2021 7:47 AM
To: 'Healeys' <healeys@autox.team.net>
Subject: [Healeys] Clutch
You will all be as sick of hearing about my OD as I am of lying underneath
it. I've decided to kick the whole thing into touch. I'll whip out the
gearbox (hah!) and drive it complete up to OD Spares who will sort it out
while I wait. Even if I have to wait all day. Beats making the round trip
twice.
Which leads me on to thinking about "what else to do when I'm in there"...
The clutch is the obvious candidate.
1) I don't know how long is a piece of string, but is there a mean
average duration for a clutch in terms of miles? Not driven hard, just
driven.
2) I see that people quite often sell the clutch as a kit consisting
in: the plate assembly, the cover and the release bearing. I thought that
one replaced the latter every time one got near it and that one replaced the
plate as and if needed. But - I thought - the cover is just a hunk of iron
and didn't ever need replacing. Am I right in any of that??
3) Tools..I see a great variety. In shape, design and in cost. Broadly
speaking there are variations on A or B. The former seems elaborate and not
suited to someone who hopes to only ever change one clutch in his life. But
B is so very different from A that one wonders if it can do the same job..
Any thoughts on all or parts of the above would be very much appreciated.
Now to battle with the gearbox. Oh joy....
Simon
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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US =
link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>With all the chatter =
about the throw out bearing I am surprised no one has mentioned the =
Denis Welch replacement. One caveat is you have to permanently modify =
the cover plate by removing the center pad. The carbon throw out bearing =
always seemed odd to me but I have no knowledge of why it was designed =
that way. Could it have been state-of-the-art back in the =
day?<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'><a =
href=3D"https://www.bighealey.co.uk/austin-healey/clutch-1";>https://www.b=
ighealey.co.uk/austin-healey/clutch-1</a><o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>John<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>BT7 with a DW throw out =
bearing.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p> </o:p></span></p><div><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b>From:</b> Healeys =
[mailto:healeys-bounces@autox.team.net] <b>On Behalf Of </b>Simon =
Lachlan via Healeys<br><b>Sent:</b> Wednesday, September 1, 2021 7:47 =
AM<br><b>To:</b> 'Healeys' =
<healeys@autox.team.net><br><b>Subject:</b> [Healeys] =
Clutch<o:p></o:p></p></div></div><p =
class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal><span =
lang=3DEN-GB>You will all be as sick of hearing about my OD as I am of =
lying underneath it. I’ve decided to kick the whole thing into =
touch. I’ll whip out the gearbox (hah!) and drive it complete up =
to OD Spares who will sort it out while I wait. Even if I have to wait =
all day. Beats making the round trip twice.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB>Which leads me on to thinking about =
“what else to do when I’m in =
there”…….<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB>The clutch is the obvious =
candidate.<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 =
lfo3'><![if !supportLists]><span lang=3DEN-GB><span =
style=3D'mso-list:Ignore'>1)<span style=3D'font:7.0pt "Times New =
Roman"'> =
</span></span></span><![endif]><span lang=3DEN-GB>I don’t know how =
long is a piece of string, but is there a mean average duration for a =
clutch in terms of miles? Not driven hard, just =
driven.<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 =
lfo3'><![if !supportLists]><span lang=3DEN-GB><span =
style=3D'mso-list:Ignore'>2)<span style=3D'font:7.0pt "Times New =
Roman"'> =
</span></span></span><![endif]><span lang=3DEN-GB>I see that people =
quite often sell the clutch as a kit consisting in: the plate assembly, =
the cover and the release bearing. I thought that one replaced the =
latter <b>every time</b> one got near it and that one replaced the plate =
<b>as and if needed</b>. But – I thought – the cover is just =
a hunk of iron and <b>didn’t ever need replacing</b>. Am I right =
in <b>any</b> of that??<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 =
lfo3'><![if !supportLists]><span lang=3DEN-GB><span =
style=3D'mso-list:Ignore'>3)<span style=3D'font:7.0pt "Times New =
Roman"'> =
</span></span></span><![endif]><span lang=3DEN-GB>Tools….I see a =
great variety. In shape, design and in cost. Broadly speaking there are =
variations on A or B. The former seems elaborate and not suited to =
someone who hopes to only ever change one clutch in his life. But B is =
so very different from A that one wonders if it can do the same =
job……<o:p></o:p></span></p><p class=3DMsoListParagraph><span =
lang=3DEN-GB>Any thoughts on all or parts of the above would be very =
much =
appreciated. &=
nbsp; &n=
bsp; &nb=
sp; &nbs=
p;  =
; =
&=
nbsp; &n=
bsp; &nb=
sp; &nbs=
p; <o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB><o:p> </o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB>Now to battle with the gearbox. Oh =
joy……..<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-GB>Simon<o:p></o:p></span></p><p =
class=3DMsoListParagraph><span =
lang=3DEN-GB><o:p> </o:p></span></p><p =
class=3DMsoListParagraph><span =
lang=3DEN-GB><o:p> </o:p></span></p><p =
class=3DMsoListParagraph><span =
lang=3DEN-GB><o:p> </o:p></span></p></div></body></html>
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