scotty30

when i pull away in 1st and sometimes when putting into 2nd im gettin a juddering feeling is this a sign of my clutch on its way out or does this sound like something else?

tathan

sounds like you've got an Impreza tbh.

Myles

iTrader: (40)

Mine did the same, new clutch and it seems to have gone, but a common thing on Imprezas.

scotty30

its only just started doing it which is why i thought it could be the clutch..

chris-RB5

Yep it's the clutch, mine started the exact same way but now i've got no biting point and it's started slighty slipping, but i am running 330bhp and it's had 10+ launches, so not done bad at all!

scotty30

yeah i think mine is a little higher and i have done 10-15 launches since i have owned it...

tathan

random guess - you've bent your tangential strap springs by launching it hard or bumping it badly, thereby causing uneven lift.

99greenwagon

iTrader: (39)

its not the clutch,i think you will find it is the flywheel.not a big problem but i had this on mine,once new flywheel was fitted it didnt do it at all.....ever.

99greenwagon

iTrader: (39)

launching wont do your drivetrain much good and will also help towards a slipping clutch!

chris-RB5

joys of having dccd set to the rears and r180 rear diff mate

So you had a new flywheel fitted but not a new clutch?

99greenwagon

iTrader: (39)

had new clutch also,any specialist will agree it will be the flywheel having high spots causing the juddering.

chris-RB5

Had a flywheel go in my old rb5, but the juddering only occurred when slowing right down in second!!!

99greenwagon

iTrader: (39)

never heard that one before,could that be gearbox related?some people have a new clutch fitted and forget to have a new/skimmed flywheel aswell,this results is a "new" juddery clutch. so by launching the car dosent really help in the long run.

Antonyworldwide

iTrader: (5)

i get it in my MY00 ver 6 when pullling aweay when its cold

99greenwagon

iTrader: (39)

yep i had exactly the same before new clutch "AND FLYWHEEL" was replaced.

chris-RB5

Right, fed up of going round in circle's, the op has already said he's done 15 launches, clutches in general should only take about 5 good launches so i think that is a good sign that his clutch is on the way out! Also yes impreza's do suffer with clutch judder when cold, that doesn't mean the clutch is on the way out or the flywheel is shot which AWW is sayin.
No it wasn't the gearbox or the clutch it was the flywheel that just started with this problem, the clutch was replaced and the problem was still there so then it points to the flywheel which was then changed, you cannot be serious in saying everytime you have a clutch you either have the FW skimmed or replaced a FW should in general last at least 80K!
And on lauches it is the clutch and gearbox that take the mechanical strain not the flywheel!

99greenwagon

iTrader: (39)

another one that thinks a subaru is like most other cars. if u replace the clutch it is advised to change the flywheel,subarus are not renound for juddery clutches.if your clutch and flywheel is good then you will have no judder what so ever!if you disagree, then happy days running your juddery scoob!

evoke

iTrader: (6)

Same on my Ver. 6, only happens when it's cold though. Nothing to worry about it my eyes

tathan

juddery clutch IS common in Subarus. Any flywheel should be skimmed/replaced if it is out of tolerance. If your Impreza one is still within spec, then changing/skimming it is a waste of money.

Steve T

iTrader: (14)

The fist sign I had of my clutch being on the way out was slipping in 4th and 5th gear when accellerating. As it deteriorated the slipping occured in all gears.

chris-RB5

Better tell my best mate then who happens to be a subaru specialist who owns his own company and who worked at monty's subaru for 11 years, as tathan says you only need to replace/skim if the flywheel if it's warped or scorched, as for subaru's not been renound for clutch judder ask the majority on here!


From SIDC
3.5 Clutch judder
3.5.1 ... when cold
This is caused by the material used to with stand the abuse given to it by owners.....usually ok when warmed up. Can also be caused by problems (wear/dirt ?) with the special platinum spark plugs used in the Impreza. Replacing these at the 15,000/30,000 mile service can cure the problem (although sometimes only for a month or so!).

Another suggestion has been to treat your Impreza to several full bore standing starts (when warm of course), which apparently helps clean up the surfaces of clutch components.

For 1998 models, and some 1999 models, there have actually been many cases of faults with the standard clutch system. The symptoms are progressively worsening juddering when cold, leading to severe clutch judder at all times. Subaru dealers (certainly in the UK), have been replacing these faulty clutches free of charge under warranty, including a new flywheel, as long as the mileage isn't well above average, and the problem is severe enough. Some owners report a slight juddering at times, but this is not enough to warrant a new clutch.
3.5.2 ... when hot
Can be cured by uprating the clutch fluid to a DOT 5 fluid. Caused by fluid getting too hot from the engine bay heat.

Not saying that a old flywheel will not cause judder, cause your right it will but it's not always the case!

tathan

^ indeed, a massive launch often cleans up the flywheel, but if the cover is damaged or not lifting cleanly or the flywheel is out of spec then it won't help.

99greenwagon

iTrader: (39)

yeah the clutch was replaced due to slipping,so i also had a new flywheel fitted at the same time,before i had both changed i also had the juddering from cold etc(hence the change of flywheel),but with the new parts fitted i never had any judder whatsoever.To say subarus are renound for juddery clutches is slightly wrong(nothing much to worry about tho) as it just goes to show if the parts are in tip top condition then judder is not an issue,they certainly dont come out the factory with juddery clutches do they? general wear causes the symptons like all things mechanical.depends how you look at it really,but a juddery clutch would ennoy me. also to have a flywheel replaced with a lightweight flywheel is not a waste of money.

tathan

That'll be why some people got them repaired under warranty then...

And you're moving the goalposts now - a lightweight flywheel is an upgrade.


edit: just found this, vaguely interesting reading from 7 years ago.

https://www.scoobynet.com/drivetrain...he-answer.html

TonyBurns

iTrader: (3)

No one actually asked the op what model/year car he has yet?
Everyone is assuming its a 99/00 car which "clutch judder" was common on, my new (ie brand spanking new) MY00 suffered from it from very low miles, and that diddnt have any hard launches at the time (serviced at Monty's twice, never again after that )

So to the OP, what model/year car do you have?

Tony

Leaney-g

Sure this will sound like a silly question.........but are launches when you floor it when you're stationary?