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The spring can cope with quite some wear of the clutch plate and also the
pressure plate.
It doesn't make much difference.
I had reground my pressure plates 3times before retiring them.
Cheers
Chris
Von: marty <trmarty@hotmail.com>
Gesendet: Freitag, 19. April 2019 01:35
An: tr4racing@googlemail.com
Betreff: Re: [Fot] WG: Quartermaster Clutches
Thanks. Wouldn't you loose contact pressure each time you ground it though
? It looks like I would have to grind off a decent amount to get to flat.
Marty Sukey
Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------
Date: 4/18/19 7:24 PM (GMT-05:00)
Subject: [Fot] WG: Quartermaster Clutches
All these type of clutches (Quatermaster, Tilton, etc.) suffer from the same
thing, that the pressure plate warps from heat.
The good news: They are designed to be ground flat. Put it on a magnetic
table of a grinding machine and let it surface then you have good new
clutch.
Cheers
Chris
Im Auftrag von marty via Fot
Gesendet: Donnerstag, 18. April 2019 17:47
Betreff: [Fot] Quartermaster Clutches
Looking for some clutch help. I recently disassembled a quartermaster Pro
7.25 single disc clutch, not from my car. I have no experience with this
style of clutch. Upon disassembly I observe that the flywheel insert, clutch
disc and pressure plate only have had contact on the outer 3/8 " diameter.
Upon further investigation the flywheel insert surface is flat. The clutch
surface thickness is uniform but if I lay a straight edge across the face of
the Quartermaster pressure plate it cups outward. My initial thought was
"bingo" this would cause the wear pattern I am observing. Must be something
out of whack with the pressure plate insert. I contacted quartermaster and
described what I saw and they were not much help other than "something must
be warped". I was getting ready to order a replacement pressure plate insert
but I stopped over to Jason's shop and saw that he was working on a car that
also ran a quartermaster Pro 7.25 clutch but this was a double disc. I took
it apart and all components had even wear across the faces as one would
expect. I layed a straight edge across the pressure plate out of this
assembly expecting to see a flat contact surface and was surprised to see
the same cupped condition where the outer pressure plate surface would
contact the clutch disc first as the one at home. Now I am at a loss as to
what would cause this improper wear pattern. Any experience with this?
Marty
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</o:shapelayout></xml><![endif]--></head><body lang=3DDE =
link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:EN-US'>The spring can cope with quite some =
wear of the clutch plate and also the pressure =
plate.<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:EN-US'>It doesn’t make much =
difference.<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:EN-US'>I had reground my pressure plates =
3times before retiring them.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:EN-US'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:EN-US'>Cheers<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:EN-US'>Chris<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:EN-US'><o:p> </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>Von:</b> marty =
<trmarty@hotmail.com> <br><b>Gesendet:</b> Freitag, 19. April 2019 =
01:35<br><b>An:</b> tr4racing@googlemail.com<br><b>Betreff:</b> Re: =
[Fot] WG: Quartermaster Clutches<o:p></o:p></p></div></div><p =
class=3DMsoNormal><o:p> </o:p></p><div><p class=3DMsoNormal><span =
style=3D'font-family:"Arial",sans-serif'>Thanks. Wouldn't you =
loose contact pressure each time you ground it though ? It looks like I =
would have to grind off a decent amount to get to =
flat.</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'font-family:"Arial",sans-serif'>Marty =
Sukey </span><o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div =
id=3D"composer_signature"><div><p class=3DMsoNormal><span =
style=3D'font-size:9.5pt;color:#575757'>Sent from my Verizon, Samsung =
Galaxy smartphone<o:p></o:p></span></p></div></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p =
class=3DMsoNormal>-------- Original message =
--------<o:p></o:p></p></div><div><p class=3DMsoNormal>From: Chris Marx =
via Fot <<a =
href=3D"mailto:fot@autox.team.net";>fot@autox.team.net</a>> =
<o:p></o:p></p></div><div><p class=3DMsoNormal>Date: 4/18/19 7:24 PM =
(GMT-05:00) <o:p></o:p></p></div><div><p class=3DMsoNormal>To: "<a =
href=3D"mailto:fot@autox.%20team.%20net";>fot@autox. team. net</a>" =
<<a href=3D"mailto:fot@autox.team.net";>fot@autox.team.net</a>> =
<o:p></o:p></p></div><div><p class=3DMsoNormal>Subject: [Fot] WG: =
Quartermaster Clutches <o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><div><p =
class=3DMsoNormal><span lang=3DEN-US>All these type of clutches =
(Quatermaster, Tilton, etc…) suffer from the same thing, that the =
pressure plate warps from heat.</span><o:p></o:p></p><p =
class=3DMsoNormal><span lang=3DEN-US>The good news: They are designed to =
be ground flat. Put it on a magnetic table of a grinding machine and let =
it surface then you have good new clutch.</span><o:p></o:p></p><p =
class=3DMsoNormal><span lang=3DEN-US> </span><o:p></o:p></p><p =
class=3DMsoNormal><span lang=3DEN-US>Cheers</span><o:p></o:p></p><p =
class=3DMsoNormal><span lang=3DEN-US>Chris</span><o:p></o:p></p><p =
class=3DMsoNormal><span =
lang=3DEN-US> </span><o:p></o:p></p><div><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm'><p class=3DMsoNormal><b>Von:</b> Fot <<a =
href=3D"mailto:fot-bounces@autox.team.net";>fot-bounces@autox.team.net</a>=
> <b>Im Auftrag von </b>marty via Fot<br><b>Gesendet:</b> Donnerstag, =
18. April 2019 17:47<br><b>An:</b> <a =
href=3D"mailto:fot@autox.team.net";>fot@autox.team.net</a><br><b>Betreff:<=
/b> [Fot] Quartermaster Clutches<o:p></o:p></p></div></div><p =
class=3DMsoNormal> <o:p></o:p></p><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;color:black'>Looking for some clutch help. I =
recently disassembled a quartermaster Pro 7.25 single disc clutch, not =
from my car. I have no experience with this style of clutch. Upon =
disassembly I observe that the flywheel insert, clutch disc and pressure =
plate only have had contact on the outer 3/8 " diameter. Upon =
further investigation the flywheel insert surface is flat. The clutch =
surface thickness is uniform but if I lay a straight edge across the =
face of the Quartermaster pressure plate it cups outward. My =
initial thought was "bingo" this would cause the wear pattern =
I am observing. Must be something out of whack with the pressure plate =
insert. I contacted quartermaster and described what I saw and =
they were not much help other than "something must be warped". =
I was getting ready to order a replacement pressure plate insert but I =
stopped over to Jason's shop and saw that he was working on a car that =
also ran a quartermaster Pro 7.25 clutch but this was a double disc. I =
took it apart and all components had even wear across the faces as one =
would expect. I layed a straight edge across the pressure plate =
out of this assembly expecting to see a flat contact surface and was =
surprised to see the same cupped condition where the outer pressure =
plate surface would contact the clutch disc first as the one at home. =
Now I am at a loss as to what would cause this improper wear pattern. =
Any experience with this?</span><o:p></o:p></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:12.0pt;color:black'> </span><o:p></o:p></p></div>=
<div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;color:black'>Marty</span><o:p></o:p></p></div><=
/div></div></div></body></html>
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