edspurrier
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| posted on 4/4/09 at 04:35 PM |
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Clutch Pedal Clunk
Just took the Tiger to Rutland Water for ice cream. All worked fine until I got there - then a definite clunk when pushing the clutch pedal down.
It made a clunk noise and had a bit of give with no resistance before starting to work normally. Gear changed no problem.
Happened intermittently on the way back.
Now the end of clutch movement comes with stiffening up of the pedal and a bit of a groan, but not sure that's new.
Clutch works fine, and after the clunk the pedal movement feels normal.
Any ideas? Quadrant is fairly new but it's my first suspect.
Thanks
Ed
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blakep82
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| posted on 4/4/09 at 04:37 PM |
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hydraulic or cable?
thinking something's worked loose, either clutch fork, or slave cylinder
________________________
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edspurrier
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| posted on 4/4/09 at 04:40 PM |
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Cable.
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mistergrumpy
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| posted on 4/4/09 at 04:53 PM |
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What engine/gearbox?
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edspurrier
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| posted on 4/4/09 at 05:03 PM |
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Zetec, Type 9, Tiger flywheel and sierra clutch
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mistergrumpy
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| posted on 4/4/09 at 05:11 PM |
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Just a thought then. I had similar experience in my old Escort. It had an adjuster on the top of the pedal. A pawl I think it was. I had to replace
this and it sorted out. It was like a small plastic rectangle and had perhaps 10 fine teeth that worked on the pedal at the top.
Hope this helps.
Just to give you a picture
here
[Edited on 4/4/09 by mistergrumpy]
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adithorp
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| posted on 4/4/09 at 06:33 PM |
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Doesn't the Tiger use the Sierra pedals. If so it sounds like the adjuster quadrant/ratchet going west.
adrian
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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NS Dev
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| posted on 5/4/09 at 08:49 AM |
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as per your suspicions, probably the adjuster quadrant, BUT.......
I had this on my old XR4x4, and though it was the quadrant slipping, there was nothing wrong with the quadrant.
It was the cable binding (inner on outer) where it had got hot near the exhaust manifold. This made the inner cable drag back, which fools the
quadrant every time the pedal comes back up, so it "adjusts" every time you move the pedal, and occasionally slips a tooth.
before you change the quadrant, worth just checking that the cable is moving smoothly (disconnect at pedal end and move by hand, bet you will find it
won't move by hand)
PS, I used a QH cable to replace mine, and the problem re-ocurred after a month or so, followed by snapping the cable. I did this 3 more times, then
decided to fit a genuine Ford one and it never happened again................................
[Edited on 5/4/09 by NS Dev]
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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MikeRJ
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| posted on 5/4/09 at 09:08 AM |
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quote:
Originally posted by NS Dev
PS, I used a QH cable to replace mine, and the problem re-ocurred after a month or so, followed by snapping the cable. I did this 3 more times, then
decided to fit a genuine Ford one and it never happened
Went through 3 QH clutch cables on my Astra GTE, none of which lasted more than a couple of months, OEM replacement was still ok when I sold car two
years later.
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edspurrier
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| posted on 5/4/09 at 04:45 PM |
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Thanks. Will check the cable tomorrow. It's on induction side so shouldn't be too hot, but might wrap it in silver foil tape anyway.
Ta
Ed
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prawnabie
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| posted on 5/4/09 at 05:24 PM |
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I had this noise, it clunked when the clutch pedal was at maximum travel. Turns out it was the "tit" on the gearbox end of the cable
centering itself in the metal end of the outer sheathing!
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edspurrier
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| posted on 6/4/09 at 09:39 AM |
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Taken the cable out. Glides OK but there are a coupld of areas where the rubber has apparently melted through! Was close to the inlet manifold but
nothing else.
So I'll try a new cable first with some heat wrap and see. Hope that works, changing the quadrant is a right b--r and it's pretty new
thanks
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MikeRJ
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| posted on 6/4/09 at 11:54 AM |
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quote:
Originally posted by prawnabie
Turns out it was the "tit" on the gearbox end of the cable centering itself in the metal end of the outer sheathing!
I find it's often the tit at the other end of the clutch cable that causes problems 
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edspurrier
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| posted on 8/4/09 at 02:16 PM |
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Sorted, I think. This should keep the cable cool. Fibreglass heatproof sleeve and foil tape.
pic
[Edited on 8/4/09 by edspurrier]
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