Go Back   Subaru Impreza Forum - WRX STI Rally Performance Tuning > Subaru Impreza Technical Area > Technical General

Subaru Impreza Forum

Clutch won't disengage
Reply
 
LinkBack Thread Tools Display Modes
Old 29 Jan 2012, 06:34 PM   #1 (permalink)
Fresh Scooby
 
Join Date: Nov 2011
Posts: 10
Unhappy Clutch won't disengage

Hi, I've just fitted a new clutch friction plate and release bearing to my 2001 2.0 turbo. The clutch pedal seems heavy, the release lever moves when the pedal is pressed but the clutch does not disengage!
What have I done wrong?
Offline   Reply With Quote
Old 29 Jan 2012, 06:46 PM   #2 (permalink)
Veteran Scooby
 
bugeye_bob's Avatar
 
Join Date: Mar 2009
Location: UK-Earth - Search google maps for "The Stig"
Posts: 4,563
Re: Clutch won't disengage

have you bled the slave cylinder ?
__________________
-- .. ... ... .. -. --. / -... ..- - / -. --- - / ..-. --- .-. --. --- - - . -.
Offline   Reply With Quote
Old 29 Jan 2012, 06:56 PM   #3 (permalink)
Fresh Scooby
 
Join Date: Nov 2011
Posts: 10
Re: Clutch won't disengage

No, didn't think I'd need to as I haven't opened the hydraulics up. The pedal doesn't feel spongy either.
Sounds like a simple one to try though.
I'll give it a go.
Thanks
Offline   Reply With Quote
Old 04 Feb 2012, 04:46 PM   #4 (permalink)
Fresh Scooby
 
Join Date: Nov 2011
Posts: 10
Re: Clutch won't disengage

OK, So I've bled the clutch hydraulics, the release lever is moving when the pedal is pressed just the same as before, but the clutch will not disengage.

Can anyone tell me the correct thickness of a new clutch friction plate as the one I was supplied with was 7mm thick Subaru part no. 30100AA541. I've been doing some digging and think it may be the wrong plate. I think it should be part no. 30100AA791. But does that really matter if the thickness is right?

The one I took out measured 5.9 mm but that was slipping.

If the new one is too thick would that stop the clutch from disengaging?

Thanks
Offline   Reply With Quote
Old 04 Feb 2012, 06:47 PM   #5 (permalink)
Veteran Scooby
 
bugeye_bob's Avatar
 
Join Date: Mar 2009
Location: UK-Earth - Search google maps for "The Stig"
Posts: 4,563
Re: Clutch won't disengage

Поиск по OEM: «30100AA541» / MASUMA | Запчасти для японских автомобилей
30100AA791 should be fine, its on the list for your year anyway.
__________________
-- .. ... ... .. -. --. / -... ..- - / -. --- - / ..-. --- .-. --. --- - - . -.
Offline   Reply With Quote
Old 04 Feb 2012, 08:37 PM   #6 (permalink)
Fresh Scooby
 
Join Date: Nov 2011
Posts: 10
Re: Clutch won't disengage

What about the 30100AA541? What's different between them? The 541 is the one I've fitted that won't disengage, but how can I be sure that if I spend more money on the 791 it'll fix my problem?

Thanks
Offline   Reply With Quote
Old 04 Feb 2012, 08:42 PM   #7 (permalink)
Veteran Scooby
 
bugeye_bob's Avatar
 
Join Date: Mar 2009
Location: UK-Earth - Search google maps for "The Stig"
Posts: 4,563
Re: Clutch won't disengage

sorry see here.
http://opposedforces.com/parts/info/30100AA791/
and
http://opposedforces.com/parts/info/30100AA541/

makes it a bit easier for you
__________________
-- .. ... ... .. -. --. / -... ..- - / -. --- - / ..-. --- .-. --. --- - - . -.

Last edited by bugeye_bob; 04 Feb 2012 at 08:47 PM.
Offline   Reply With Quote
Old 05 Feb 2012, 03:23 PM   #8 (permalink)
Fresh Scooby
 
Join Date: Nov 2011
Posts: 10
Re: Clutch won't disengage

Clutch now sorted. The 541 plate I had was about 1.5 mm too thick!

Many thanks for the info.

Next problem is the engine starts first turn of the key, revs up then cuts out. Is there something obvious to check for?
Offline   Reply With Quote
Old 15 Mar 2012, 09:45 AM   #9 (permalink)
Scooby Fanatic
 
fiveskin's Avatar
 
Join Date: Oct 2007
Location: East London/ Essex
Posts: 560
Re: Clutch won't disengage

That sounds like immobilizer.... But then your post is a month or so old so I assume its sorted?
__________________
+++ Roads? Where we're going we dont need 'roads' +++
*_*_*_ come to me for all your photoshop needs _*_*_*
Offline   Reply With Quote
Old 16 Mar 2012, 09:39 AM   #10 (permalink)
Fresh Scooby
 
Join Date: Nov 2011
Posts: 10
Re: Clutch won't disengage

Sorted, but only after a lot of head scratching. Turned out to be a very dense spiders web deep inside the MAF sensor. I noticed a flash of white in the tube as I was removing the sensor. The airbox and sensor had been in the corner of the garage for a few weeks while I removed the engine and replaced the head gasket.
A pipe cleaner and wash through fixed it.

Thanks
Offline   Reply With Quote
Old 16 Mar 2012, 01:23 PM   #11 (permalink)
Obsessed Scooby
 
stiimpreza1984's Avatar
 
Join Date: Jul 2008
Location: Cork, Ireland
Posts: 7,475
Re: Clutch won't disengage

Quote:
Originally Posted by NealeM View Post
Turned out to be a very dense spiders web deep inside the MAF sensor.
bloody spiders ha simple fix then
__________________
SEE NO EVO HEAR NO EVO!
Offline   Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
CLUTCH HELP!!!!! carhood Technical General 2 06 Jun 2011 11:53 AM
Clutch Judder on new clutch redscoobie Technical General 52 05 Aug 2010 09:30 AM
New Clutch uklyss Technical General 8 25 Aug 2009 10:17 PM
new clutch eddiewrx Engine Bay 6 20 Aug 2009 11:37 AM
clutch RobWrx08 Engine Bay 2 02 Mar 2009 08:28 PM


All times are GMT. The time now is 08:45 PM.



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.