half a clutch?

[mr.fix.it]

well ill eat my words haha . well put . mustve just been a co-incidence

[resurrection.inc]

at the end of things i still have half a clutch some times. not all the time. can anybody help me out on this?? also anyone n hamilton area wana make some cash to replace a seal dont have the time or the small hands lol

[WRXONP]

which seal ?

tried bleeding clutch ? properly ?

is master cylinder adjusted correctly? around 10mm free play on the pedal is good

does the clutch hold pressure for 20 seconds or more ? havent looked at subaru pedal box in a while but pretty sure it will have a return spring

does ur clutch slip at all?

[resurrection.inc]

Clutch brand new along with flywheel 3 months ago it so

E times gets stuck on floor gotta pull up with toe. Need right hand roka seal done anyone in tron wants to make sum cash

[funkytown]

 resurrection.inc said:

Clutch brand new along with flywheel 3 months ago it some times gets stuck on floor gotta pull up with toe. Need right hand roka seal done anyone in tron wants to make sum cash

fit the spring and see if it fixes it.

sure the spring will be physically working against returning the clutch but its only a very small force compared your pressure plate. (and this is where people are getting confused) Thats a given, but whats its also doing is applying force keeping the release bearing loaded against the pressure plate..

If that bearing isn't loaded though THATS what can stop clutch returning. That force of the stuck bearing (as its unloaded and moves to far) will stop the return action of your clutch pedal.. with the bearing loaded against the pressure plate and in the correct position, the clutch will return under its own force and over power that small spring you put in. (remember pressure plate spring easily overrides that small spring to return) .

Put a release bearing in a flywheel on a work bench and think about how it works, and what high RPM will be doing to it loaded or unloaded and the position the release bearing would be in under each scenario

[WRXONP]

to me - that doesnt make sense ^

and how i see it when you say the pressure plate will over come the small spring - making the spring have no effect on returning the pedal -

the only way i could see it not returning is if you had 5-10mm free play between clutch fork and clutch fork - u used half your stroke to pump the slack - you used half to press the pressure plate fingers - then you let clutch out and the fork returns to normal position when your pedal is only half way out -

realistically you should not be able to get so much free play between the slave cylinder and clutch fork- you need to press the hydraulic cylinder back in - it wont just go back in by itself - the release bearing can not physically have a gap between pressure plate fingers and release bearing as its clipped into the pressure plate

clutch pedal sticking right in - that points towards a hydraulic problem - the way to tell if it definitly is a hydraulic problem is if the clutch pedal is in yet its driving as if the pedal is out

that can be a leak - in corectly bled - bypassing master seals - leaking slave seals

the hydraulic system is very simple on a clutch - same as brakes

i ran mine without a spring ever - there never ever was enough free play between the clutch fork and slave to cause any problems

no other cars have springs that ive ever owned or worked on - they never have problems either

[Guest]

Pressure plate returns pedal - YES

but what happens under high rpm, with centrifual forces applied by the clutch to the brg/fork and knock off causes the slave to be pushed back

Hence when you hit the pedal - on 1/2 a pedal is there

And with Subaru clutch pedal and the over centre type return spring wont allow the pedal back up and as has only operated from 1/2 way then it only returns this far

Pulling the pedal fully up fixes the prob time next high rpm

All the light spring does is keep the fork loaded against the brg, and allows the slave to stay out

As I have said before I was a non beleiver when told by my engineer friend at FHI, but he was correct and it fixed my isse and I have now fixed many may more with the same fault

WRXONP - maybe you pressure plate, and clutch plate where lots heavier ? in saying that I have fixed over 10 clutch issues that had HD clutches

[WRXONP]

yeah i realise what the spring does like i said above - but i have never had a issue on any of my subarus with high rpm making the slave push in

you would DEFINATLY 100% feel this when u press the clutch in as alot of clutch stroke will be very light and doing nothing

[Guest]

 WRXONP said:

yeah i realise what the spring does like i said above - but i have never had a issue on any of my subarus with high rpm making the slave push in

you would DEFINATLY 100% feel this when u press the clutch in as alot of clutch stroke will be very light and doing nothing

This is your experience,....

FACTOID is as I have posted above

subaru clutch NEED this spring to prevent / fix this issue

[Guest]

this spring may not be the cause of the orginal posters issue

I have had Subarus do this same fault in peak traffic, with lots of stop start driving

Which is when it is a heat issue into the hyraulics - poor fluid was the cause each time

[petrolheadjman]

Is this specific to pull clutches on subis?

[Guest]

the spring - YES

[resurrection.inc]

 Ichi Ban said:

this spring may not be the cause of the orginal posters issue

I have had Subarus do this same fault in peak traffic, with lots of stop start driving

Which is when it is a heat issue into the hyraulics - poor fluid was the cause each time

yes this is what is happening to mine. how do i bleed the system.

[Guest]

thru the bleed nipple

[Guest]

[Joker]

removing the slave cylinder and holding in the piston in whilst pumping pedal simultaneously holding it as high as possible is best way iirc

[WRXONP]

bleed master first - then slave

or back bleed if u have a back bleeder

[Joker]

ooh k Just had a mate look at it (went in to order new clutch : he says "come round on weekend I'll take a look"

some leakage inside master cylinder/firewall area, adjusted bolt on clutch pedal : seems OK now! not even slipping

simple checks are often overlooked