North American Turbocoupe Organization



The infernal squeaking!
WyldeSoul Offline
Member
#1
Righto, I have a constant squeak under my hood somewhere, sounds like a belt or whatnot.

The only thing is, it goes away when I put light pressure on the clutch pedal....

Any clue? I highly doubt pulleys or tensioners would silence when the clutch is pressed...
The Wench 1987 Turbocoupe. 5 speed. Black with Raven/Charcoal interior. Beater.
Mods: Cone filter, manual 2 stage boost controller (Gillis style), Thrush Glasspack (Pre-axle dump.)
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bwhite Offline
Junior Member
#2
Maybe the throwout bearing is caught up on something and when you put harder pressure on it, it stops???
Custom 86 turbo coupe and half of an 87 turbo coupe
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Michael Offline
Member
#3
The Tbearing shouldnt have anything pushing on it until the pedal is pressed. Usually Tbearing noise starts when you press the pedal, cause it then makes contact with the pressure plate. When a Tbearing is starting to lose its lube and doesnt spin easy, it digs into the pressure plate springs making a metal-metal whine.

But maybe there is something else going wrong and your Tbearing is the culprit. Or maybe your input shaft bearing is having problems...?
1983 Turbo RS Rock Stock
1984 Turbo RS Capri 20+PSI
1988 Turbo T-Bird Tricked Out
1987 Turbo T-bird Dont Know Yet
1974 260Z (Early)-2.3T Conversion
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Joe F Offline
Posting Freak
#4
If it sounds kind of like a bird chirping, then most likely one side of the metal retainer springs on your clutch fork has broken; repair requires a new clutch fork.

This is a very common problem and I agree, is annoying as heck.

Do a search for clutch forks and you'll find everything (and more) that you need to know.

HTH
JR's Place - My '87 Turbocoupe
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bhazard Offline
Posting Freak
#5
Yup, mine is easily audible over the exhaust, extremely annoying. Nothing I can do though, the retainer was broke as described above. New clutch fork would probably cost more than the car is worth.
88 TC, 170k, K&N, $5 Boostvalve, Stinger 3" ex., 3" Magnaflow, 3" Stinger tail, Zoom clutch
15.26 @ 86mph, 2.18 60' killed valvetrain & headgasket
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shiftless Offline
Member
#6
New clutch fork is only like $15 direct from Ford. Unless they've gone up since I bought one a few years ago. It may also be the throwout bearing going bad. Contrary to popular belief, there IS supposed to be preload on them, and they will eventually start squeaking if there is insufficient preload.
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Jeff K Offline
Administrator
#7
Quote:Originally posted by shiftless:
New clutch fork is only like $15 direct from Ford. Unless they've gone up since I bought one a few years ago. It may also be the throwout bearing going bad. Contrary to popular belief, there IS supposed to be preload on them, and they will eventually start squeaking if there is insufficient preload.
Clutch forks are now obsolete from Ford. I bought a new one a year or so ago for future use from Vintage Parts, who bought all the old Ford stock.
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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t-bird88 Offline
Senior Member
#8
I would bet a tank of gas that your throwout bearing is what is causing the 'chirp'. Did you get the spec clutch kit? If so then that throwout bearing is junk and you need to get a new one from your local parts store, preferably one that has an all metal body.

My spec kit came with a throwout bearing and I installed it. The damn thing chirped like there was no tomorrow. After having the tranny out 4 times I then decided to get rid of it and go with one that was from the parts house. VIOLA!!!! The chirp went away and has not came back.

Just me $0.02 worth!

Jim B Big Grin .
Gunmetal Grey 88 TC!!!!
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WyldeSoul Offline
Member
#9
I got a stock replacement clutch kit installed from a local dealer. Brand new stuff, and all the garages who I talked to to get it installed said that the company was quite nice and reputable.

It was very much a case of "We can't warrenty the clutch, but if you got it from those guys, no worries, they always do great stuff"

But even so, with it likely being the throw out bearing, one, will it be any problem other than annoying? And two, would it be too difficult for an apartment parking lot (barely equipped) mechanic like me?
The Wench 1987 Turbocoupe. 5 speed. Black with Raven/Charcoal interior. Beater.
Mods: Cone filter, manual 2 stage boost controller (Gillis style), Thrush Glasspack (Pre-axle dump.)
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leroy_420b Offline
Junior Member
#10
I had the same thing i changed my clutch and throwout bearing and it was still there. in my case it was the pilot bearing i found one that was of the roller bearing type and put it in have not heard a sound since
88 tc gillis k&N 86 tc getting all the goodies from the 88 plus ported e-6 3 inch exhaust ranger roller ported intake manifolds not sure what else should be rolling sometime next year
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