Goodbye Clutch Delay Valve
- Thread starter igeak691
- Start date
Hope this video helps others who are thinking about doing itLondon. pirate
Member
Great Video,
I had mine removed on Friday at Cragos BMW Dartford Kent,
Cost was only £43.
Well worth it.
I had mine removed on Friday at Cragos BMW Dartford Kent,
Cost was only £43.
Well worth it.
Interesting comment! I have never done this but fail to understand how removing this CDV will reduce the jerkiness in lower gears :?Argenta said:
If this was the cause of jerkiness between 1st and 2nd, then there would be jerkiness between all gear changes as the CDV doesn't stop working between the other gears. It allows the clutch fluid to drain out of the clutch slave slower and will surely give a smoother rather than a jerky gearchange? Once the clutch fluid has drained out of the slave cylinder and the clutch plate is in contact with the flywheel, there is nothing that would exert pressure to the clutch plate again to drive it apart from the flywheel to make it jerky :!:
It's hard to pinpoint but let me see if I can explain it a little better. Because the gears are much farther apart in 1st to 2nd than say 5th to 6th, there's a higher range of RPMs. With the CDV, when you let off the clutch, RPMs move around much more in the 1st to 2nd gear and therefore there's a lot more room for "error", resulting in a jerkiness. However after the CDV delete, if you can drive stick properly, you can almost place the RPM exact where you need it, drop the clutch, and give gas and go, without any clutch slip.
The result is that 1st to 2nd is much smoother because you can get up and go at a faster rate without the RPMs moving around while the clutch is being slipped by the CDV.
Yes, its a very minute difference that a person will never notice unless you drive the car daily and drive it before and after. But the car definitely feels more natural now, and I am able to quickly change gears and start from a dead stop without feeling like I'm going into first gear every time aka with some clutch slipping.
The result is that 1st to 2nd is much smoother because you can get up and go at a faster rate without the RPMs moving around while the clutch is being slipped by the CDV.
Yes, its a very minute difference that a person will never notice unless you drive the car daily and drive it before and after. But the car definitely feels more natural now, and I am able to quickly change gears and start from a dead stop without feeling like I'm going into first gear every time aka with some clutch slipping.
Nearly everyone in the UK can drive a 'stick' properly as we don't do the girly auto's as much over here just yet.
If you do a full throttle start and go from first to second, the 'delay' is there, but it isn't there if you continue up the gears. It's caught me out a few times and I hate it. It feels like you have no traction, but you do and it's the gearbox holding you back.
If you do a full throttle start and go from first to second, the 'delay' is there, but it isn't there if you continue up the gears. It's caught me out a few times and I hate it. It feels like you have no traction, but you do and it's the gearbox holding you back.
What makes auto girly other than you being insecure about what makes you a man? 
just playing but really, the more we play on the stigma that driving stick makes you a man, the less women will want to learn and drive stick. This is a problem here in the US. Guys define themselves as guys because they drive stick. What a joke.
Anyway, clamping it off decreases/minimizes the loss of fluid to a minimum or none. We dripped a bit but still no clutch bleeding needed. We were worried about clutch bleeding also but it turned out fine. Just clamp it off and you won't have issues.. We only let some drip to get rid of a little air from opening up the line.
just playing but really, the more we play on the stigma that driving stick makes you a man, the less women will want to learn and drive stick. This is a problem here in the US. Guys define themselves as guys because they drive stick. What a joke.Anyway, clamping it off decreases/minimizes the loss of fluid to a minimum or none. We dripped a bit but still no clutch bleeding needed. We were worried about clutch bleeding also but it turned out fine. Just clamp it off and you won't have issues.. We only let some drip to get rid of a little air from opening up the line.
