I better not get mine done then, my clutch control is awful
Not joined yet? Register for free and enjoy features such as alerts, private messaging and viewing latest posts and topics.
Cdv removal clutch delay valve OMG!
-
- Member
- Posts: 450
- Joined: Tue Aug 08, 2017 3:10 pm
Cdv removal clutch delay valve OMG!
Alpina Roadster S LUX #030
- JINGLE
- Senior Member
- Posts: 2549
- Joined: Wed Apr 23, 2014 9:20 pm
- Location: Norwich, Norfolk
Cdv removal clutch delay valve OMG!
Well I was gonna attempt it whilst up on the ramps... now mikes talk of master cylinders etc has scared me a little.... I don’t even know where or what that is I’ve done all the cosmetic work on my car myself, but I’ve been very conscious of touching brakes or clutch etc as that’s well past my ability.... I guess I’ll see how brave I feel on Saturday when it’s up on the ramps
-
- Member
- Posts: 450
- Joined: Tue Aug 08, 2017 3:10 pm
Cdv removal clutch delay valve OMG!
Quick question, in my old car I would depress the go faster pedal at the same time as I started to release the clutch pedal, in the Alpina I have to start releasing the clutch before I start applying the accelerator. Is it the CDV causing this behaviour. maybe thats why my clutch control has gone to pot, and it has nothing to do with age/reaction timesDucklakeview wrote: ↑Tue Nov 07, 2017 12:13 amTrust me, you are. I was sceptical until I did the 2.0,as was Jamie until I did his 3.0 and his E46..
Mike
Alpina Roadster S LUX #030
- Steve84N
- Senior Member
- Posts: 1828
- Joined: Tue Jul 21, 2015 1:00 pm
-
- Member
- Posts: 250
- Joined: Mon Oct 16, 2017 4:02 pm
- Location: Southampton
Cdv removal clutch delay valve OMG!
Interesting - is it reversible? I don't really notice any problems at the moment, but I'm open to giving it a try...
E86 | Stratus Grey
- Ducklakeview
- Lifer
- Posts: 6362
- Joined: Tue Mar 22, 2016 4:08 pm
- Location: Merseyside
Cdv removal clutch delay valve OMG!
Yes, that's the CDV doing what it's designed to do. No matter how fast you release the clutch, it will only ever close at it's own speed due to the CDV, hence your need to release it before hitting the gas. Remove it and you will probably stall the first time you pull away as the clutch will be fully engaged before you hit the gas..markalp wrote: ↑Wed Nov 08, 2017 1:16 am ]
Quick question, in my old car I would depress the go faster pedal at the same time as I started to release the clutch pedal, in the Alpina I have to start releasing the clutch before I start applying the accelerator. Is it the CDV causing this behaviour. maybe thats why my clutch control has gone to pot, and it has nothing to do with age/reaction times
Mike
- Mark-Z4
- Senior Member
- Posts: 1097
- Joined: Wed Apr 03, 2013 10:23 pm
- Location: South West
Cdv removal clutch delay valve OMG!
Is there a how to for this?
E86 - Space Grey | Grey Oregon Pearl Leather | Sport Interior | ///M Bumper | Aero Skirts | Piano Black Trim | ///M Wheel | Eibach Pro | CSL | HID | LED | ZHP | MM Tips | Stubby SOLD
- Ducklakeview
- Lifer
- Posts: 6362
- Joined: Tue Mar 22, 2016 4:08 pm
- Location: Merseyside
-
- Member
- Posts: 84
- Joined: Mon May 04, 2015 7:05 pm
- Location: Warwickshire
Cdv removal clutch delay valve OMG!
Thanks.
I cant imagine how bad it was before, I was hoping I could improve the 1/2nd gear change, but I guess this is as good as it gets.
- MrPT
- Lifer
- Posts: 4746
- Joined: Sun Oct 21, 2012 7:44 pm
- Location: Bucks/Oxon
Cdv removal clutch delay valve OMG!
Hah, yeah that’s what I thought too. There’s a notch right in the middle of the shift. Helps a bit if you change “backhand”, i.e. palm facing outwards.
2008 Z4MC: heavy wheels | crap suspension | skittish rear end | wobbly engine | not enough induction noise | underwhelming turn in | inconsistent braking | lardy battery | chubby steering wheel
2006 Z4 2.5si: gone
2006 Z4 2.5si: gone
-
- Member
- Posts: 436
- Joined: Sun Apr 09, 2017 6:51 pm
Cdv removal clutch delay valve OMG!
I’ll be removing the cdv this weekend, along with changing my water pump to get my zed back on the road, can’t wait!
Z4 now sold
Current - M235i
Current - M235i
- dhobbs
- Senior Member
- Posts: 1621
- Joined: Mon Jul 16, 2012 5:33 pm
Cdv removal clutch delay valve OMG!
My car was in Munich Legends in Sussex recently having the ABS pump repaired, I said whilst you're there can you whip the CDV off, and they said yes but we'll have to order a braided hose to replace the rubber one! I said I thought it was a simple job of just removing the little CDV and joining the two pipes together!
I said don't bother then!
Still got it in
I said don't bother then!
Still got it in
3.0si roadster. Requisite stubby. Sound gen mod. LED numberplate lights. LED boot strip. Interior lights LED too. ZHP gearknob. Daily drive
Motor in boot. Bilstein B8 dampers. New radio, much better sounds
Motor in boot. Bilstein B8 dampers. New radio, much better sounds
- MACK
- Lifer
- Posts: 3600
- Joined: Mon Jun 15, 2015 11:38 am
- Location: Manchester
Cdv removal clutch delay valve OMG!
WTF never heard that one before! Did they give you any sort of rationale for this? Honestly can't see one for removing the CDV device itself. I've been removing these peskie little things on BMWs for must be over a decade now and never had an issue with a standard hoses.dhobbs wrote: ↑Fri Nov 10, 2017 7:22 am My car was in Munich Legends in Sussex recently having the ABS pump repaired, I said whilst you're there can you whip the CDV off, and they said yes but we'll have to order a braided hose to replace the rubber one! I said I thought it was a simple job of just removing the little CDV and joining the two pipes together!
I said don't bother then!
Still got it in
Last edited by MACK on Fri Nov 10, 2017 8:59 am, edited 1 time in total.
Silver 05 3.0i SE
Mods inc - F/L Xenons Clear Ind Rear Lights M Sport Seats & Wheel Eibach/B4 3.64 DIFF (SOLD)
White E89 20i M Sport
Mods inc- B12 kit, M3 Arms, 18" Zito 935's with PS4's, Decat & Remap, Switchable Exhaust Flap (SOLD)
Mods inc - F/L Xenons Clear Ind Rear Lights M Sport Seats & Wheel Eibach/B4 3.64 DIFF (SOLD)
White E89 20i M Sport
Mods inc- B12 kit, M3 Arms, 18" Zito 935's with PS4's, Decat & Remap, Switchable Exhaust Flap (SOLD)
-
- Lifer
- Posts: 4621
- Joined: Fri Dec 31, 2010 9:38 pm
Cdv removal clutch delay valve OMG!
dhobbs wrote: ↑Fri Nov 10, 2017 7:22 am My car was in Munich Legends in Sussex recently having the ABS pump repaired, I said whilst you're there can you whip the CDV off, and they said yes but we'll have to order a braided hose to replace the rubber one! I said I thought it was a simple job of just removing the little CDV and joining the two pipes together!
I said don't bother then!
Still got it in
utter bullshit. sounds like they couldn't be arsed doing it
18 Z4s owned to date.
Current: 2.5i Titan silver
Daily driver: 480bhp M140i Shadow edition.
Current: 2.5i Titan silver
Daily driver: 480bhp M140i Shadow edition.
-
- Senior Member
- Posts: 1705
- Joined: Thu Apr 07, 2016 3:40 pm
Cdv removal clutch delay valve OMG!
I've done the CDV delete...but also a weighted gear nob and changed the gear box oil to Millers - I only get the notch a slight bit sometimes now.