North American Turbocoupe Organization



Clutch diagnosis?
RC Martin Offline
Posting Freak
#1
I could use some input on my clutch health,

I was abusing it today by smoking my 12 year old tires that need to be replaced.. may as well have some fun with them first. At one point I was disengaging the clutch after some tire smoke and there was a mechanical pop and a slight thunk-thunk-thunk that went away. Soon thereafter I noticed clutch slipping around 4k revs getting no power to the wheels. Drive home fine with no further issues or sounds. The pop could have been a backfire, but I'm pretty sure it wasn't since I've never had one before on the tc.

Clutch is a 10 year old Napa with maybe 20k and some light abuse.
84 TC - Bright Canyon Red, Rebuilt Motor .040 Over & 3-Angle Valve Job
Gnari FMIC / Recirc Pipe / HKS-SQV BPV, Stinger MBC @ 15psi, RF-E6 Manifold, Remote-Mount TFI, PC1 and Flowed 35# Injectors, Inline Walboro 255HP, Kirban AFPR
Rebuilt Suspension -- KYB & Energy Suspension
http://www.cardomain.com/ride/2289955
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Pete D Offline
Administrator
#2
Just guessing here and assuming it is still slipping at some rpms: Broke spring finger(s) off the pressure plate or popped spring out of clutch plate. Glazed the clutch, or pressure plate or flywheel.
Pete Dunham


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RC Martin Offline
Posting Freak
#3
Thanks for the input. Time to go clutch shopping I guess.
84 TC - Bright Canyon Red, Rebuilt Motor .040 Over & 3-Angle Valve Job
Gnari FMIC / Recirc Pipe / HKS-SQV BPV, Stinger MBC @ 15psi, RF-E6 Manifold, Remote-Mount TFI, PC1 and Flowed 35# Injectors, Inline Walboro 255HP, Kirban AFPR
Rebuilt Suspension -- KYB & Energy Suspension
http://www.cardomain.com/ride/2289955
Reply

Jeff K Offline
Administrator
#4
Yup, only way to tell what is wrong is take it apart and have a look.
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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RC Martin Offline
Posting Freak
#5
I'm kind of looking forward to it. I've had symptoms before that people suggested the throwout bearing was the issue, new clutch kit would address that. And I could do u-joints at the same time. Sounds like a good spring project.

I'm leaning towards a Spec Stage 2 or 2+, any suggestions?
84 TC - Bright Canyon Red, Rebuilt Motor .040 Over & 3-Angle Valve Job
Gnari FMIC / Recirc Pipe / HKS-SQV BPV, Stinger MBC @ 15psi, RF-E6 Manifold, Remote-Mount TFI, PC1 and Flowed 35# Injectors, Inline Walboro 255HP, Kirban AFPR
Rebuilt Suspension -- KYB & Energy Suspension
http://www.cardomain.com/ride/2289955
Reply





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