[Fot] Quartermaster Clutches

[gt6steve at aol.com]

I can envision the first contact between the plate and disc being at the outer edges of the cup being at high speed and as more of the plate comes into contact there would be a progressively slower interface until both are rotating at the same speed.
The cup will flatten as load is applied...?

-----Original Message-----
From: marty via Fot <fot at autox.team.net>
To: DPPI - Mark Craig <info at dieselperformanceparts.com>
Cc: fot at autox.team.net <fot at autox.team.net>
Sent: Thu, Apr 18, 2019 10:05 am
Subject: Re: [Fot] Quartermaster Clutches

#yiv6230478157 P {margin-top:0;margin-bottom:0;}Mark, my initial thoughts were the same as yours until I saw the other setup with uniform wear and thought that should be obtainable. But how?
Marty
From: DPPI - Mark Craig <info at dieselperformanceparts.com>
Sent: Thursday, April 18, 2019 12:06 PM
To: marty
Cc: fot at autox.team.net
Subject: RE: Quartermaster Clutches Yes same deal, my thought was what the heck. Then I went well it’s not slipping so do I care. Been running it ever since with no issues. Right or wrong it is working and I have just gone with it as is?? 
|  |   | Mark Craig
Diesel Performance Parts, Inc.
411 Allied Drive, Nashville, TN 37211
www.dieselperformanceparts.com |
|    |   |  Phone: 615-834-0066
Fax: 615-834-9923
Email: mark at dieselperformanceparts.com  |

  From: Fot [mailto:fot-bounces at autox.team.net]On Behalf Of marty via Fot
Sent: Thursday, April 18, 2019 10:47 AM
To: fot at autox.team.net
Subject: [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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