North American Turbocoupe Organization



odd clutch cylinder play
ridgeback Offline
Member
#1
never replaced the clutch cylinder before.. it always was spot on thru 110K miles.

Yesterday i noticed i had to get the clutch down that last xtra inch to the floor to make a few shifts and by the time i made it to work and reversed into my spot, the clutch pedal would not come all the way back up leaving my gear in reverse and almost hitting a building. So i noticed on idle i can pump the clutch and it feels fairly decent but when revving the engine i feel i lose have the distance of the pedal and not enough to engage or disengage a gear. Very intermittent and confusing.. please help trouble shoot... hope its as simple as a new cylinder??

thanks,
Ron

Ron

Black 87 TC, 2nd owner since [email protected], [email protected]
Current Mods: Gillis valve @18psi. K&N Cone. Removed AC components, New: Esslinger Aux. Shaft, Seals, Melling Oil Pump, Heater core. Ranger cam & rollers, new tower bearings, Walbro 255 fuel pump
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Pete D Offline
Administrator
#2
Check the little clutch reservoir on the firewall. Is it low to empty? If so then you need to check the cylinders. The rod from the slave cyl to the clutch fork should move at least .54" when the pedal is pushed all the way down.
Pete Dunham


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ridgeback Offline
Member
#3
Hey Pete ..... ya its just under the mark so i added a drop but no change...no leaks either. I get that movement most the time but its been changing the last few rides to almost a pedal on the floor feel and then it slowly comes back to where i get a full pedal and normal movement. its really odd

Ron

Black 87 TC, 2nd owner since [email protected], [email protected]
Current Mods: Gillis valve @18psi. K&N Cone. Removed AC components, New: Esslinger Aux. Shaft, Seals, Melling Oil Pump, Heater core. Ranger cam & rollers, new tower bearings, Walbro 255 fuel pump
Reply

ridgeback Offline
Member
#4
so with a quick look i am assuming there is no vacuum connection to the hydraulics of the clutch master? This is a mechanical set-up?... been raining to much for me to get too into it right now
Ron

Black 87 TC, 2nd owner since [email protected], [email protected]
Current Mods: Gillis valve @18psi. K&N Cone. Removed AC components, New: Esslinger Aux. Shaft, Seals, Melling Oil Pump, Heater core. Ranger cam & rollers, new tower bearings, Walbro 255 fuel pump
Reply

Jeff K Online
Administrator
#5
No vacuum...... It works just like a hydraulic brake system.
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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anasazi4st Offline
Senior Member
#6
BE WARNED if you replace the clutch master cylinder. Nearly ALL the documentation you will likely read will tell you that it installs CLOCKWISE. Take it from me and my experience, this is NOT correct.

The newer Ford Supplement to the 1987-88 Shop Manual has the CORRECT method—it installs COUNTER-CLOCKWISE. Again, the standard Ford manual and my grey-jacketed Haynes 1983-88 Thunderbird one will tell you to install it the old way. I spent over an hour trying just that, convinced I wasn’t pushing hard enough.

Also, be certain that the eye of the master cylinder’s pushrod is in its proper place (near the clutch pedal boss) on the other side of the firewall before you begin the considerable effort of the actual install. I forgot to check this beforehand, and the eye wasn’t anywhere close and I had to RE-reinstall it.

IIRC a 3/4” spark plug socket will prove to be MOST handy in turning the cylinder into place. YES, it takes a LOT of pushing effort to get it there.
Another proud dues-paying member.

1987 Turbo Coupe w/T5OD, 8.8 axle, grey smoke; most options. Got it in 1991 with 41K miles: 3 turbos, 2 heater cores, 1 T5OD full rebuild, 5 clutches, 1 head gasket, 2 Teves II ABS units, etc. later....
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ridgeback Offline
Member
#7
Interesting and Ty for the heads up!!! I will be tackling thing Clutch issue hopefully within the next 2 weeks

Once again.. awesome Forum!!!!


thanks,
Ron
Ron

Black 87 TC, 2nd owner since [email protected], [email protected]
Current Mods: Gillis valve @18psi. K&N Cone. Removed AC components, New: Esslinger Aux. Shaft, Seals, Melling Oil Pump, Heater core. Ranger cam & rollers, new tower bearings, Walbro 255 fuel pump
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