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Registered
Join Date: Apr 2002
Location: Omaha, NE
Posts: 3,518
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Why is my pressure plate wearing like this?
Is this normal? It looks like only the outer 1" or so of my clutch disc is engaging with the pressure plate. Isn't the entire surface supposed to engage? what would cause this?
Also what is the discoloration telling me on the pressure plate? overheated maybe? This is from my 3.6 SC transplant with 915 trans. The most recent miles on this equipment were primarily track miles.  
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1980 911SC Targa 3.6L |
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08-20-2018, 11:15 AM
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Member 911 Anonymous
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For track that ain't bad IMHO. I would think more blue stains if over heating.
Since it is out, out would machine and balance it with Fly wheel. In fact, how is the condition of the fly wheel? How is the thickness of the clutch pad across the path of the pad, even?
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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08-20-2018, 11:37 AM
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Registered
Join Date: Apr 2002
Location: Omaha, NE
Posts: 3,518
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Clutch disc wear is even but if you look closely you can see the discoloration on the disc from where only half of it is engaging. The disc was new so maybe 300 miles on it with 3 track days.
Here is a pic of the flywheel. 
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1980 911SC Targa 3.6L |
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08-20-2018, 11:50 AM
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Schleprock
Join Date: Sep 2000
Location: Frankfort IL USA
Posts: 16,639
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Tends to vary from clutch to clutch. Check out some of these clutches and flywheels I had
G50 Lightweight Clutch- KEP Stage 1 225mm Kennedy Eng. Stage 1 Clutch- 915 trans 225mm Lightened Flywheel- Used
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Kevin L '86 Carrera "Larry" |
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08-20-2018, 02:26 PM
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Registered
Join Date: Oct 2006
Location: MYR S.C.
Posts: 17,321
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wrong size dsic?
I had some hot spots on the flywheel of my 325is. I used 220 sandpaper on something flat to lightly sand the flywheel
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86 930 94kmiles [_  _] RUNNING:[__] NOT RUNNING: ____77 911S widebody: SOLD88 BMW 325is 200K+ SOLD 03 BMW 330CI 220K:: [_ _] RUNNING: [__] NOT RUNNING:01 suburban 330K:: [_ _] RUNNING: [__] NOT RUNNING:RACE CAR:: sold |
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08-21-2018, 02:50 AM
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Marble Grey
