North American Turbocoupe Organization



HELP, 2000 miles with Centerforce Dual Friction clutch and its failing??????????
turboken Offline
Member
#1
I have had a CF dual friction clutch for about 3 months. Never made any weird noises, bangs, nothing. But now, with the clutch pedal ALL the way to the floor, the pressure plate is still touching. On level ground, you can notice the car is not still, but c-r-a-w-l-i-n-g foreward. To get into 1st gear, i must turn the car off and start it in gear. Hard to go between gears. like the clutch is wore out, but........ only 2000 miles.. HELP. ANy Hints????


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88TC- all options minus leather: 129K miles, new motor, bored and balanced block, roller cam(FordMotorSports), Crane ignition and coil. Powerhead with big valves, ported intakes and exhaust, 5 spd with FMS rebuild kit, B&N ripper shifter, K&N cone,
88TC-Black/Raven,A237 cam,ported and polished intakes/exhaust, gillis valve, o-ringed deck, head studs
85 Xr7 rough survivor 82k miles
2008 Subaru Impreza non turbo :-(
73 Honda CB750 (running parts bike for dads '69)
04 Honda 1000rr
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Pete D Offline
Administrator
#2
It's probably not your clutch or pressure plate. Sounds like you may have a defective master or slave cylinder. The 87-88 use a hydraulic system to move the clutch fork, throwout bearing and pressure plate. Check the clutch fluid resevoir. It's the small round white plastic container near the brake master cylinder resevoir, next to the vacuum tree. It normally should only be about 1/2 full. If it's lower than that, it has lost fluid. If it's too low, you have air in the system and it has to be bled like a brake system. The slave cylinder is on the driver's side of the bell housing

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NATO Member. it's not a vice, it's an obsession
"The nice thing about each new day is nobody ever used it before" Barnaby Jones
88 TC X 2, 86 SVO, Main TC with K&N, 3"DP to 2.5"duals through Dynamax, Ric valve at 17+ and disconnected KS. Elite Bodega 16" chrome wheels. Autometer pod w/ A/F and Vac/boost gauges.140 mph Motorsports Speedo New engine: Total Seal rings and TRW pistons, ported and polished head w/ cc'd chambers,1.59"exhausts, SS valves, gutted upper, knife edged lower, A-230 cam, Race Engineering Adj Cam Sprocket, Crowlers, ARP head studs, and rod bolts. Walbro 255 HP pump and Kirban adj FPR, T-3. Centerforce II, KB subs and jack rails.

[This message has been edited by Pete D (edited 04-23-2002).]
Pete Dunham


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**PathogeN** Offline
Member
#3
I think petes right on..thats what mine did when slave went (yesterday). Speaking of which, where can you get a snap ring for it? Other than junkyard anyone have luck finding one?

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1987 TC 5-Speed Red/Red Leather | 5.0 Mustang T-5, FRPP Cobra Clutch, Esslinger Aluminum Flywheel | FRPP Valve Springs & Hardened Valves | Walbro 255LPH Fuel Pump | Gutted Upper, Knifed Lower, Knifed TB | Gillis @ 18 psi, Bosch Bypass Valve | K&N Cone, VAM Mod | ETS Timing & Accessory Tensioners, Unorthodox Pulleys | No cat, ETS 3" DP, Dual 2.5" Dynomax | IHI w/Teflon Impeller | 2 Piston Brembo Brake System & 4-Channel ABS Piggyback Chip | HPM Rear Lower Control Arms, Griggs Front A-Arm Kit & Lightened K-Member | Eibach Pro Kit Springs | KYB AGX Adjustable Struts, Tokico Shocks, Koni Quads | Max. Motorsports Caster/Camber Plates | PST Polygraphite Bushings | Lincoln LSC Front Sway bar | Rewound Ford P.I. Alt, 185 Amps | 2000W Infinity/Clarion Pro Audio IASCA Competition Audio System
88 Turbo Coupe (White)
88 Psudo Coupe (Silver LX)
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turboken Offline
Member
#4
the slave is even newer than teh clutch. How can I test the master cyl? fluid lvl is what it usually is...

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88TC- all options minus leather: 129K miles, new motor, bored and balanced block, roller cam(FordMotorSports), Crane ignition and coil. Powerhead with big valves, ported intakes and exhaust, 5 spd with FMS rebuild kit, B&N ripper shifter, K&N cone,
88TC-Black/Raven,A237 cam,ported and polished intakes/exhaust, gillis valve, o-ringed deck, head studs
85 Xr7 rough survivor 82k miles
2008 Subaru Impreza non turbo :-(
73 Honda CB750 (running parts bike for dads '69)
04 Honda 1000rr
Reply

Pete D Offline
Administrator
#5
Follow the line from the slave up the fire wall. Did you bleed the system when you put the new slave in?

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NATO Member. it's not a vice, it's an obsession
"The nice thing about each new day is nobody ever used it before" Barnaby Jones
88 TC X 2, 86 SVO, Main TC with K&N, 3"DP to 2.5"duals through Dynamax, Ric valve at 17+ and disconnected KS. Elite Bodega 16" chrome wheels. Autometer pod w/ A/F and Vac/boost gauges.140 mph Motorsports Speedo New engine: Total Seal rings and TRW pistons, ported and polished head w/ cc'd chambers,1.59"exhausts, SS valves, gutted upper, knife edged lower, A-230 cam, Race Engineering Adj Cam Sprocket, Crowlers, ARP head studs, and rod bolts. Walbro 255 HP pump and Kirban adj FPR, T-3. Centerforce II, KB subs and jack rails.
Pete Dunham


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Noname
Guest
#6
I put in the CF Dual Friction kit with a CF TO Bearing and new clutch fork. I did not change anything else. Now, after about 10k miles, sometimes after you run it a little hard, the clutch pedal has a slight vibration, or a feeling like it rubbing something when you push it in and out. It sounds like a TO Bearing problem...

Another thing I noticed is that when I first put it in, the clutch would grab at about 50% from the floor when you are letting it out, now it seems like its grabbing at about 75-80% off the floor... Next clutch will probably be a RAM.
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turboken Offline
Member
#7
i couldnt bleed the line 'cuz the bleeder valve is inaccessable under the hyd. line. My last clutch was a Ram from racer walsh, and it only lasted about 6000 miles before it burned up. I said heavy duty too......
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88TC-Black/Raven,A237 cam,ported and polished intakes/exhaust, gillis valve, o-ringed deck, head studs
85 Xr7 rough survivor 82k miles
2008 Subaru Impreza non turbo :-(
73 Honda CB750 (running parts bike for dads '69)
04 Honda 1000rr
Reply

turboken Offline
Member
#8
when my dad and i put the new slave in, since i couldn't get at teh bleeder, we just pumped the slave cyl. until it stopped giving up bubbles in the resovior(?).
88TC-Black/Raven,A237 cam,ported and polished intakes/exhaust, gillis valve, o-ringed deck, head studs
85 Xr7 rough survivor 82k miles
2008 Subaru Impreza non turbo :-(
73 Honda CB750 (running parts bike for dads '69)
04 Honda 1000rr
Reply

gddevil1 Offline
Member
#9
look at these two threads. Both are about clutch bleeding.
http://natoubb.turboford.org/Forum1/HTML/003007.html
http://natoubb.turboford.org/Forum1/HTML/003119.html

Ohter than this I haven't actually bled the system.

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1988 tc-
3" atr downpipe
2.5" atr duals
k&n cone
Gillist Boost valve
centerforce clutch
all else stock..
for now
1988 tc-
3" atr downpipe
2.5" atr duals
k&n cone
Gillist Boost valve
centerforce clutch
3G alt. from Pa- performance
all else stock..
for now
NATO member
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