Author Topic: Clutch pedal problems  (Read 6884 times)

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Offline csimpson

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Clutch pedal problems
« on: May 27, 2007, 09:24PM »
My clutch pedal has a strange feel to it, basically. When you hit about half-way, it sticks for a few mm (and requires more effort), then gives, then sticks. As if there was something in the pedal that was catching somewhere along the line. I've been told that this could be the clutch cable being worn and frayed in parts, and catching. Personally, I'm unsure of what it could be, at all.

Has anyone else had a problem of this type? I'm interested to see if there are any easy solutions.

Thanks.

Offline rathies

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Re: Clutch pedal problems
« Reply #1 on: May 27, 2007, 09:29PM »
how long since the clutch hydraulics have been bled? thats probably the chepeast way to check if something is wrong.
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Offline greenbird

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Re: Clutch pedal problems
« Reply #2 on: May 27, 2007, 10:07PM »
There's definately no clutch cable on a U13!
As Rathies has suggested, start by bleeding the clutch. It is real filthy (probably is...), bleed metho through the system until it is clean again, then bleed some new brake fluid through it.
Another thing to check is the pivot that the clutch pedal hinges on at the top. If this is worn and grabbing, it could cause issues like you have described. I'm not 100% sure, but it may even have a bush in there that it hinges on. Check it out anyway...
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Offline LUP15

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Re: Clutch pedal problems
« Reply #3 on: May 28, 2007, 01:26AM »
do u have an aftermarket heavy duty clutch? i had a simile problem with my attesa. it ended up being the clutch fork at the pivot point. its a common problem in gtirs as well. bad news about this problem is its a gearbox out job. $700 to replace a $100 part :(

probably wont cost that much on a ka24. but as the others said, try bleeding clutch hydraulics and eliminate the slave, master cylinders and the clutch pedal as a likely cause
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Offline csimpson

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Re: Clutch pedal problems
« Reply #4 on: Jun 7, 2007, 06:27PM »
For what it's worth, I ended up fixing the clutch problems today on a whim.

Gave everything under the dash a good coating of grease ( ;D), then pulled up the clutch withdrawl lever dust cover in the engine bay. Damn thing was full of dust! Gave it a couple of soaks with carby cleaner, pushed the clutch in and out a couple of dozen times, more carby cleaner, more pushing, then a dose of grease to keep everything nicely lube'd. It travels perfectly, now :)

Offline Jono

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Re: Clutch pedal problems
« Reply #5 on: Jun 7, 2007, 06:30PM »
Are you talking about the clutch fork dust cover, or the slave cylinder dust cover?

If it was the slave cylinder cover you'll be needing a new slave cylinder soon: petroleum products eat the seals in them.
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Offline csimpson

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Re: Clutch pedal problems
« Reply #6 on: Jun 7, 2007, 08:19PM »
Clutch fork dust cover. I only said "withdrawal lever" because that's what it's called in the service manual :)

Offline csimpson

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Re: Clutch pedal problems
« Reply #7 on: Jul 11, 2007, 06:00PM »
Alright, this problem has reappeared in the past few days. I'm 99% sure now that it's the pedal itself causing the problems, as the creak is very evident from the driver footwell.

How might I go about resolving this? Anyone got any clues?

Offline eurisko

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Re: Clutch pedal problems
« Reply #8 on: Jul 11, 2007, 06:27PM »
Id put hard cash money on it being your master cylinder.

Look under the dash, and move the carpet, see if its slowly leaking.

If it isnt, then just spray it with wd40 and see if that fixes it. If it does, then hit it with some proper grease and hope for the best.

New master cylinders are like 40 bucks (generic brand)

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Offline csimpson

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Re: Clutch pedal problems
« Reply #9 on: Jul 11, 2007, 06:52PM »
What do you mean by 'spray it'? Spray the clutch pedal spring?

I'll bleed it tomorrow (probably bleed metho through it to clean it, like greenbird suggested, then fill it up again with brake fluid) and see how it goes. Is installing the new master cylinder a decently easy job?

Offline csimpson

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Re: Clutch pedal problems
« Reply #10 on: Jul 12, 2007, 04:12PM »
Alright. From more of a poke-around-and-listen, it sounds like the slave cylinder piston or spring is groaning for some reason - I'm going to get a rebuild kit ($20 :) ) and fix it up on the weekend.

Offline csimpson

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Re: Clutch pedal problems
« Reply #11 on: Jul 14, 2007, 03:22PM »
All fixed up. Took out the master and slave cyls, gave them a clean with metho, relubed them with brake fluid, stuck new rubber bits on the master cyl, and it's all good now. Back to the way it used to be :)

Offline rathies

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Re: Clutch pedal problems
« Reply #12 on: Jul 15, 2007, 12:44PM »
sounds like i may have to do that to mine. +karma for the follow up.
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Offline csimpson

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Re: Clutch pedal problems
« Reply #13 on: Jul 20, 2007, 01:28PM »
It's happening again!

Going to check fluid levels this evening when I'm home from work (to make sure it isn't chronically leaking somewhere), and investigate how the master cylinder (or slave cylinder - can't remember which it is - the one that bolts to the engine block, and pushes the clutch withdrawal fork) moves the withdrawal fork. When I took out that cylinder, the end of the piston that interacted with the withdrawal fork was very worn down and burred. Is it meant to be metal on metal contact? Because the rebuild kit I got came with a little hard rubber cap, but I wasn't sure which end of the piston to put it on :)

Will report back once I know more.

Offline csimpson

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Re: Clutch pedal problems
« Reply #14 on: Jul 20, 2007, 07:09PM »
Okeydokey. Definitely, definitely the master cylinder. Monday comes around, and I'll take the thing off and clean it to within an inch of its life. I'll see if i can get a rebuild kit for it as well.


(That thing)

Offline eurisko

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Re: Clutch pedal problems
« Reply #15 on: Jul 21, 2007, 04:28PM »
Dont bother. Aftermarket replacement cylinder is like 40 bucks.

Just get a new one. :P

http://www.antrx.com/smf/index.php?topic=11975

Just like this one  ;D

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Offline Budgie

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Re: Clutch pedal problems
« Reply #16 on: Jul 21, 2007, 06:47PM »
Yes, don't bother.  Just buy a new one, they are cheap and the after-market ones work fine.  I have one in my bluebird.
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Offline csimpson

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Re: Clutch pedal problems
« Reply #17 on: Jul 24, 2007, 08:02PM »
If only I'd read that sooner :)

Took it off today, cleaned a lot of crap out of it, but the pedal still feels horrible and cracks upon release (a cracking noise - clack, clack, clack when you let the clutch out).

I admit I've been beaten soundly by this. It could be a simple problem like the spring in the clutch pedal catching on something, but that's beyond my student's expertise.

I'm going to take it to a clutch place tomorrow to have it checked out. :)

Offline csimpson

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Re: Clutch pedal problems
« Reply #18 on: Aug 1, 2007, 02:35PM »
Anyone know a parts number, or a good place to get a master cylinder? :)

Offline csimpson

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Re: Clutch pedal problems
« Reply #19 on: Aug 1, 2007, 02:43PM »
Alright, heading out to Blacktown to pick up a Tokico u12/s14/u13 replacement master cylinder. $52, will reply with results :)

Offline dave-trx

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Re: Clutch pedal problems
« Reply #20 on: Aug 1, 2007, 03:26PM »
I had this problem with my TRX and it turned out to be little bushes on the return spring on the clutch pedal. $3 each you need 2. Xtrails use the same clutch pedal box. Thats why they still make the bushes. A pain to do but its worth it.
Your car may be able to go faster.
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Offline csimpson

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Re: Clutch pedal problems
« Reply #21 on: Aug 1, 2007, 07:42PM »
Fixed it :) :) :) :) :)

$45 for the new master cylinder, part number JB1736 from PBR. Stuck it in, and it's beautifully smooth :)

Offline eurisko

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Re: Clutch pedal problems
« Reply #22 on: Aug 1, 2007, 07:59PM »
 ;D

The Nissubishda will live....

Offline Budgie

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Re: Clutch pedal problems
« Reply #23 on: Aug 2, 2007, 12:45PM »
Good work :)  Brand new FTW! :D
dont piss me off with your pillarless shit captain snappy wrist