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Clutch Query

PostPosted: Wed Apr 07, 2010 12:25 pm
by Megaman
For the last two days when getting to work and parking up... I put the clutch fully down to take it out of gear coast into the parking spot then release the clutch. As I release the clutch it hesitates slightly and feels like almost sticks as I release it. I havent noticed it when driving just when parking up the last couple of days. Not noticed any squeaking or slipping...

Have I broken it?


:?

PostPosted: Wed Apr 07, 2010 5:47 pm
by John Mc
Not something silly like catching on a mat or something is it? :lol:

PostPosted: Wed Apr 07, 2010 6:53 pm
by Megaman
No - its intermitant at the moment so not too worried... probably the clutch cable rubbing on something if there is such a thing

PostPosted: Wed Apr 07, 2010 7:52 pm
by CAVEMAN
release bearing? or the pressure plate fingers maybe?

PostPosted: Wed Apr 07, 2010 8:06 pm
by Gee Wr1
Same thing happened on one of our vans, started by sticking a wee bit like your saying but got worse & required a new clutch.

PostPosted: Wed Apr 07, 2010 8:27 pm
by WR1 Bro
What ever you do Mega, do NOT take it to your local Subaru garage!!

PostPosted: Thu Apr 08, 2010 12:24 pm
by Megaman
My Subaru garage said at my 30,000 mile service that Impreza clutches are lucky to last much past 35,000 miles. That sounded unusual to me as ive never burnt a clutch out before on a car.

If its on its way out id rather limp to a garage that charges less than my subaru dealership to fix it. I would probably also want to uprate the clutch and start seeing if its worth putting a lighter flywheel on at the same time. Only downside to these exedy or AP organic clutches is for my daily rush hour traffic jam style driving, they are apparently very easy to stall and hard work to live with. Not tried one though so cant say for certain. Actually Bro can let me try his when he comes up for Fish n Chips soon :)

PostPosted: Thu Apr 08, 2010 12:27 pm
by WR1 Bro
My AP clutch is lovely. It is more agressive when you first try it... but you soon get used to it. After a couple of drives the clutch feels just like standard.

PostPosted: Thu Apr 08, 2010 12:37 pm
by IAN
Hi there my 1 had a SCOOBYCLINIC uprated paddle clutch fitted a couple of thousand miles before i got it so i can not compare to original clutch but it feel good easy to drive and the receipt tooks a good price :D

PostPosted: Thu Apr 08, 2010 12:38 pm
by CAVEMAN
Defo worth looking at the lighter flywheel, I reckon you could save around 8-10Kg from a standard item. Help with your revving post too..albeit a little tiny bit.

However I would presume most are on an exchange basis, so you'll have to send in your original item afterwards.

PostPosted: Thu Apr 08, 2010 12:41 pm
by WR1 Bro
I didn't think the weight savings on a newage where anything near what Caveman quoted. They seem more like classic figures to me.

PostPosted: Thu Apr 08, 2010 12:47 pm
by CAVEMAN
might be lying then, but I was handed one whilst getting my mapping done and jeez was there a difference in weight!

not 100% sure on the numbers but it was impressive for sure.

PostPosted: Thu Apr 08, 2010 12:55 pm
by WR1 Bro
I thought the typical weight saving was around the 5kg mark on a newage. Either way there is a saving.

Having said that, if Mega is concerned about a more aggressive clutch then mating that with a lighter flywheel one would assume it would make the clutch even more snatchy?

PostPosted: Thu Apr 08, 2010 12:55 pm
by WR1 Bro
I'm hoping John Mc Tiddler (Dogging Expert) Tiddler (Dogging Expert) will drop by with some real facts to help us out.

PostPosted: Thu Apr 08, 2010 1:04 pm
by WR 1mposter
Megaman wrote:My Subaru garage said at my 30,000 mile service that Impreza clutches are lucky to last much past 35,000 miles. That sounded unusual to me as ive never burnt a clutch out before on a car.

If its on its way out id rather limp to a garage that charges less than my subaru dealership to fix it. I would probably also want to uprate the clutch and start seeing if its worth putting a lighter flywheel on at the same time. Only downside to these exedy or AP organic clutches is for my daily rush hour traffic jam style driving, they are apparently very easy to stall and hard work to live with. Not tried one though so cant say for certain. Actually Bro can let me try his when he comes up for Fish n Chips soon :)


I had 40k on our original clutch and it was still ok before it waschanged due to engine/power upgrade

PostPosted: Thu Apr 08, 2010 1:18 pm
by WR1 Bro
WR 1mpostor (aka number 1 moderator) wrote:
Megaman wrote:My Subaru garage said at my 30,000 mile service that Impreza clutches are lucky to last much past 35,000 miles. That sounded unusual to me as ive never burnt a clutch out before on a car.

If its on its way out id rather limp to a garage that charges less than my subaru dealership to fix it. I would probably also want to uprate the clutch and start seeing if its worth putting a lighter flywheel on at the same time. Only downside to these exedy or AP organic clutches is for my daily rush hour traffic jam style driving, they are apparently very easy to stall and hard work to live with. Not tried one though so cant say for certain. Actually Bro can let me try his when he comes up for Fish n Chips soon :)


I had 40k on our original clutch and it was still ok before it waschanged due to engine/power upgrade


That's because you don't change gear to go round bends... you just plough straight on... over a wall and through a field?

PostPosted: Thu Apr 08, 2010 6:06 pm
by Megaman
Interesting read, I wonder why the uprated clutches have a reputation for being easy to stall and hard to use for hill starts and rush hour driving then?

As for the flywheel, I can see how weight saving is good but does that let the engine rev free-er and easier or anything or would it have no impact on the engine and how it drives simply changing the flywheel for a lighter one?

PostPosted: Thu Apr 08, 2010 6:06 pm
by John Mc
WR1 Bro wrote:I'm hoping John Mc Tiddler (Dogging Expert) Tiddler (Dogging Expert) will drop by with some real facts to help us out.


If you rev the bollox off the car and sidestep the clutch with 1st gear engaged.... you should notice 1 of 3 things:

1-You lose traction and produce fog

2-You hear a loud bang and don't move anywhere (something snapped)

3-You move forward very slowly and there is a strong burning smell.

Hope this clears everything up?

PostPosted: Thu Apr 08, 2010 6:08 pm
by Megaman
Im not a traffic light GPer think ive only done two quick starts just to experience it - was put off by the burning smell for the next couple of miles.. :)

PostPosted: Thu Apr 08, 2010 7:15 pm
by MaverickUK82
Out of interest - how much do subaru charge for a new clutch, inc fitting?

PostPosted: Thu Apr 08, 2010 7:54 pm
by WR1 Bro
MaverickUK82 wrote:Out of interest - how much do subaru charge for a new clutch, inc fitting?


Far TOOOOOOO much.

Sorry, no idea. But I suspect it would make your bum wink!

PostPosted: Thu Apr 08, 2010 8:20 pm
by Megaman
Apparently its hard to fit so they charge you 4-5hrs labout at 80 an hour then the price of the clutch around 800ish all that plus vat...

PostPosted: Thu Apr 08, 2010 8:29 pm
by WR1 Bro
When we meet for Fish'n'chips you are more than welcome to try my clutch so long as there is an appropriata location....

PostPosted: Thu Apr 08, 2010 8:38 pm
by Foley
WR1 Bro wrote:When we meet for Fish'n'chips you are more than welcome to try my clutch so long as there is an appropriata location....


Am sure he'd like to try other things at the appropriata location :lol:

PostPosted: Thu Apr 08, 2010 8:46 pm
by WR1 Bro
Foley wrote:
WR1 Bro wrote:When we meet for Fish'n'chips you are more than welcome to try my clutch so long as there is an appropriata location....


Am sure he'd like to try other things at the appropriata location :lol:


Are you attending?

PostPosted: Thu Apr 08, 2010 8:53 pm
by Megaman
WR1 Bro wrote:When we meet for Fish'n'chips you are more than welcome to try my clutch so long as there is an appropriata location....


Yes that would be good mate

PostPosted: Thu Apr 08, 2010 8:54 pm
by John Mc
WR1 Bro wrote:When we meet for Fish'n'chips you are more than welcome to try my clutch so long as there is an appropriata location....


If you let me try yours I'll let you try mine :lol:

PostPosted: Thu Apr 08, 2010 9:26 pm
by Megaman
We will soon find out who's is stiffer
:lol: :lol: :lol:

PostPosted: Fri Apr 09, 2010 7:35 am
by CAVEMAN
The clutch itself is still the same basic material, but I would assume it is meant to deal with alot more stick.

The pressure required from your foot on the pedal is down to the resistance directly from the new pressure plate...so this helps keep the clutch plate held tight up against your flywheel to cope with potentially more power from your engine.

You can sometime get hold of new linkages that help to reduce your foot pressure required but not really heard of those for the scooby. I am sure you will get used to it anyways pretty quick.

The lighter flywheel is sometimes a good idea, but can also be a hinderance too. The flywheel is pretty much a slab of metal bolted to the back of the engine and rotates at teh same speed as the engine...so if you lighten this, then your engine can rev quicker sooner, as it isn't having to spin this huge bit of metal too. So in this sense it will help, but it won't effect your max rpm limit.

The downside, is that when you come off the gas, this metal disc has momentum, so helps keep your engine spinning. If the flywheel is super light your revs will drop quicker - just as they can increase quicker. So between gear changes you may find your revs dropping more than usual, so may have to be quicker.

A good example is the F1 car again. Alonso had a clutch problem this weekend, and an F1 car doesn't really have a flywheel, so the revs rise and drop at the drop of a hat. You could hear this from the in car footage, as when he went to change gear going into a corner, the car revs would drop and almost stall. This is due to the engine having no momentum from an external flywheel.

I am sure the newer lighter version with your uprated clutch won't be anywhere near as drastic, and you'll hardly notice a difference to be honest, but it will help a little.

PostPosted: Sat Apr 10, 2010 9:09 pm
by Megaman
So a lightened flywheel would improve engine braking if the revs would drop quicker?

Also the flywheel is only one part that people tend to change when changing their clutch for some reason. Is there anything else that you would change when doing major surgery like a clutch change to make the car better?