clutch stop

EenyBear · 11-01-2012, 02:16 PM

I know I'm preaching to the choir for many of you, but if you are still putting off doing this minor, inexpensive, simple modification... just do it!

After letting the idea slip for several months, I finally took a moment to replace my clutch stop with the little beauty below.

I cannot believe how such a subtle adjustment to the ergonomics of the cockpit can so dramatically improve the driving experience!

Shifts are slick as goose poop and virtually instantaneous (no rev drops, etc.).

edit - It occurs to me that this solves the core issue that was preventing me from seriously considering an SSK. I easily shift with the stock throw but I was concerned that an SSK benefit would be hampered by the free clutch action and not provide the improvement I was paying for. Now there is no free play... and maybe it's an excuse to reconsider the SSK. In a while though... this is fun all by itself.

I bought mine here (ebay link below) and actually swapped a couple of emails with the vendor. This is a well crafted product, a breeze to screw in, and IMHO an essential mod.

http://www.ebay.com/itm/230820559306...84.m1497.l2649

inTgr8r · 11-01-2012, 02:24 PM

yup... works great.
One thing to watch for is setting the stopper trip point to high for the clutch arm switch.
In hot weather things seem to change a bit & it can be difficult to engage the switch to enable the starter motor.

...there are other fixes for relocating the magnetic switch to allow for more stopper adjustment.

pmmjarrett · 11-01-2012, 02:40 PM

Thanks for posting. I didn't even know the Z had an adjustable stop available. It's on my ebay watchlist now for my next round of goodies

Been driving manuals for over 30 years with a couple million miles under my belt. I'm already smooth as butter but if this helps make me smooth as goose poop I'm all over it.

Kgolf31 · 11-01-2012, 02:50 PM

Quote:

Originally Posted by inTgr8r

yup... works great.
One thing to watch for is setting the stopper trip point to high for the clutch arm switch.
In hot weather things seem to change a bit & it can be difficult to engage the switch to enable the starter motor.

...there are other fixes for relocating the magnetic switch to allow for more stopper adjustment.

First time that happened to me I freaked out

I was in GRID for autox and I couldn't start the car...I had to unscrew it in order to start it back up.

Alexander · 11-01-2012, 02:58 PM

Nice. Just ordered one.

Thanks for sharing.

EenyBear · 11-01-2012, 06:04 PM

Quote:

Originally Posted by inTgr8r

yup... works great.
One thing to watch for is setting the stopper trip point to high for the clutch arm switch.
In hot weather things seem to change a bit & it can be difficult to engage the switch to enable the starter motor.

...there are other fixes for relocating the magnetic switch to allow for more stopper adjustment.

Agreed. I just screwed it in then backed it out a quarter/half turn at a time and kept trying to start the car. As soon as I could start it, I screwed it back in a turn or so to be safe and locked down the nut.

ZStig · 11-01-2012, 06:42 PM

Quote:

Originally Posted by Kgolf31

First time that happened to me I freaked out

I was in GRID for autox and I couldn't start the car...I had to unscrew it in order to start it back up.

yeah, and if you think about it, you're potentially not fully engaging the clutch each time you shift when its like that

beta · 11-01-2012, 06:43 PM

Yep that clutch stop (made by pickyeater334) has been discussed a few times, definitely recommended mod.

Previous thread:

http://www.zpost.com/forums/showthread.php?t=503837

To adjust it you don't need to start the car. Simply put your key in the On position, then depress the clutch. You'll hear a CLICK when the relay engages, that's the highest clutch point that the car will start, adjust your clutch stop to be just past that point and you're golden.

Also as mentioned previously, make sure that after this mod you always depress the clutch all the way to the floor before shifting so you don't beat up your synchros.

Kgolf31 · 11-01-2012, 06:51 PM

Quote:

Originally Posted by Roffle Waffle

yeah, and if you think about it, you're potentially not fully engaging the clutch each time you shift when its like that

Not at all actually.

Engagement of the clutch happens way before the magnetic point to start the engine.

RobMCoupe · 11-01-2012, 07:04 PM

Quote:

Originally Posted by beta

Also as mentioned previously, make sure that after this mod you always depress the clutch all the way to the floor before shifting so you don't beat up your synchros.

I was thinking how clutch stop effect the engagement during shifting. Just order one. Not a big deal if I don't like it.

SD ///M4 · 11-01-2012, 07:20 PM

I installed the BMS Short Throw Clutch Stop on my wife's 335is Coupe shortly after it was redelivered and we both liked the difference. I have been thinking about this for my Z4MR but wasn't sure where to get it. I just ordered one!

beta · 11-01-2012, 08:43 PM

Quote:

Originally Posted by Kgolf31

Not at all actually.

Engagement of the clutch happens way before the magnetic point to start the engine.

Exactly, the relay I talk about in my last post is in a conservative place. If you're past the relay you're ok as per BMWs conservative standards (same conservative standards that gave us a CDV, plenty of people run without a CDV without issue).

The only concern is that you shift past that point too, so that's why if you do the clutch stop you have to make sure you put the pedal to the floor before shifting. I had to consciously teach myself to do this.

Alexander · 11-01-2012, 08:50 PM

A warning to anyone with the CDV delete... My tranny grenaded in my 335i a month after doing the delete. ~15,000 miles on it.

It could be 110% coincidence, but that scared me off.

XMetal · 11-01-2012, 11:08 PM

Quote:

Originally Posted by Alexander

A warning to anyone with the CDV delete... My tranny grenaded in my 335i a month after doing the delete. ~15,000 miles on it.

It could be 110% coincidence, but that scared me off.

All that means is that you're a manual shifting amateur

...I kid, I kid

johanness · 11-01-2012, 11:10 PM

Quote:

Originally Posted by RobMCoupe

Quote:

Originally Posted by beta

Also as mentioned previously, make sure that after this mod you always depress the clutch all the way to the floor before shifting so you don't beat up your synchros.

I was thinking how clutch stop effect the engagement during shifting. Just order one. Not a big deal if I don't like it.

You will love it.

Best.Cheap.Mod

Kgolf31 · 11-01-2012, 11:13 PM

Quote:

Originally Posted by beta

Exactly, the relay I talk about in my last post is in a conservative place. If you're past the relay you're ok as per BMWs conservative standards (same conservative standards that gave us a CDV, plenty of people run without a CDV without issue).

The only concern is that you shift past that point too, so that's why if you do the clutch stop you have to make sure you put the pedal to the floor before shifting. I had to consciously teach myself to do this.

I can put the clutch in and roll the car before it hits the "starting" point where I can start the car.

Needless to say, I have mine at the perfect amount...It's been through 2 years of WOT shifts at auto-x and a track day...There is nothing to worry about.

i2ichal2dZ4M · 11-01-2012, 11:25 PM

thanks for the link! order one! rough estimate how far the thread bolt? halfway?

strokeoluck · 11-01-2012, 11:27 PM

Thanks, just ordered and will give it a shot.

beta · 11-01-2012, 11:42 PM

Quote:

Originally Posted by i2ichal2dZ4M

thanks for the link! order one! rough estimate how far the thread bolt? halfway?

Before taking off the old one, put the key in and turn it one click before starting the car. Get down there and push the clutch in with your hands and listen for the CLICK and note how much higher it is than the stock clutch stop.

Replace and adjust, you can keep the key in the ignition and keep testing to either get it just barely past the click (my preference) or farther in (some prefer having more play).

txz4 · 11-02-2012, 12:01 AM

i have just a little bit more play in my clutchstop, like beta said, its odd having to teach yourself to put the clutch in all the way before shifting. When you have all that play, you dont have to be fully depressed to be fully in, the clutch stop completely curbs this, meaning you need to be conscious about being fully depressed.

pmmjarrett · 11-02-2012, 12:04 AM

Quote:

Originally Posted by Alexander

A warning to anyone with the CDV delete... My tranny grenaded in my 335i a month after doing the delete. ~15,000 miles on it.

It could be 110% coincidence, but that scared me off.

All the clutch delay valve does is delay the engagement of the clutch and makes it slip when you let out the pedal by restricting the flow of hydraulic fluid between the clutch master cylinder and the clutch slave cylinder. I think it was pure unluky for you.

Great for teaching a beginner to drive a manual transmission but quite irritating for a seasoned vet.

Alexander · 11-02-2012, 07:12 AM

Quote:

Originally Posted by XMetal

All that means is that you're a manual shifting amateur

...I kid, I kid

Quote:

Originally Posted by pmmjarrett

All the clutch delay valve does is delay the engagement of the clutch and makes it slip when you let out the pedal by restricting the flow of hydraulic fluid between the clutch master cylinder and the clutch slave cylinder. I think it was pure unluky for you.

Great for teaching a beginner to drive a manual transmission but quite irritating for a seasoned vet.

Haha I have never owned an automatic.

Anyways yeah it was pure coincidence, but damn!

What happened is it would never shift into 1st ever unless you put it in 2nd first, but then 2nd gear started popping out of gear.

BMW was super nice about it and gave me a brand new 335i for a loaner.

Deleting my CDV tomorrow.

11-01-2012, 02:16 PM	#1
EenyBear Accidentally in BMW 15 Rep 221 Posts Drives: Z4MC & R1200S Join Date: Mar 2011 Location: Canada iTrader: (0)	clutch stop - wow! I know I'm preaching to the choir for many of you, but if you are still putting off doing this minor, inexpensive, simple modification... just do it! After letting the idea slip for several months, I finally took a moment to replace my clutch stop with the little beauty below. I cannot believe how such a subtle adjustment to the ergonomics of the cockpit can so dramatically improve the driving experience! Shifts are slick as goose poop and virtually instantaneous (no rev drops, etc.). edit - It occurs to me that this solves the core issue that was preventing me from seriously considering an SSK. I easily shift with the stock throw but I was concerned that an SSK benefit would be hampered by the free clutch action and not provide the improvement I was paying for. Now there is no free play... and maybe it's an excuse to reconsider the SSK. In a while though... this is fun all by itself. I bought mine here (ebay link below) and actually swapped a couple of emails with the vendor. This is a well crafted product, a breeze to screw in, and IMHO an essential mod. http://www.ebay.com/itm/230820559306...84.m1497.l2649 Last edited by EenyBear; 11-01-2012 at 03:43 PM..
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11-01-2012, 02:24 PM	#2
inTgr8r Lieutenant General 2426 Rep 11,667 Posts Drives: M2 Comp Join Date: Mar 2006 Location: Toronto iTrader: (10)	yup... works great. One thing to watch for is setting the stopper trip point to high for the clutch arm switch. In hot weather things seem to change a bit & it can be difficult to engage the switch to enable the starter motor. ...there are other fixes for relocating the magnetic switch to allow for more stopper adjustment. __________________ '21 M2C Hockenheim Silver '18 718 Cayman S Lava Orange (sold) '13 E92 M3 Santorini Blue (sold) '07 Z4 M Coupe Alpine White (sold)
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11-01-2012, 02:40 PM	#3
pmmjarrett Retired Paratrooper 5 Rep 146 Posts Drives: 2006 BMW Z4 3.0i Sport Join Date: Jul 2012 Location: North Carolina iTrader: (0)	Thanks for posting. I didn't even know the Z had an adjustable stop available. It's on my ebay watchlist now for my next round of goodies Been driving manuals for over 30 years with a couple million miles under my belt. I'm already smooth as butter but if this helps make me smooth as goose poop I'm all over it.
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11-01-2012, 02:58 PM	#5
Alexander Mad tyte EuR0 style boooi <--- Joke 212 Rep 2,472 Posts Drives: E30, E85, MKVI Join Date: Nov 2009 Location: Deal's Gap iTrader: (0)	Nice. Just ordered one. Thanks for sharing.
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11-01-2012, 06:43 PM	#8
beta Lieutenant Colonel 80 Rep 1,663 Posts Drives: 2006 M Roadster Join Date: Mar 2011 Location: CA iTrader: (2)	Yep that clutch stop (made by pickyeater334) has been discussed a few times, definitely recommended mod. Previous thread: http://www.zpost.com/forums/showthread.php?t=503837 To adjust it you don't need to start the car. Simply put your key in the On position, then depress the clutch. You'll hear a CLICK when the relay engages, that's the highest clutch point that the car will start, adjust your clutch stop to be just past that point and you're golden. Also as mentioned previously, make sure that after this mod you always depress the clutch all the way to the floor before shifting so you don't beat up your synchros. __________________ modification journal
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11-01-2012, 07:20 PM	#11
SD ///M4 ///Multiple 2992 Rep 4,243 Posts Drives: M4 Coupe \| M3 \| Z4M Roadster Join Date: Jan 2011 Location: San Diego, CA iTrader: (1) Garage List 2006 BMW Z4 M Roadster [8.81] 2016 BMW M4 Coupe ( ... [10.00] 2018 BMW M3 (Euro D ... [0.00] 2011 BMW 335is Coup ... [10.00]	I installed the BMS Short Throw Clutch Stop on my wife's 335is Coupe shortly after it was redelivered and we both liked the difference. I have been thinking about this for my Z4MR but wasn't sure where to get it. I just ordered one! __________________ The Coupe: 2016 M4 \| Sakhir Orange \| Black Full Merino Leather \| CF Trim \| M-DCT \| More \| ED 5/13/16 The Sedan: 2018 M3 \| San Marino Blue \| Black Full Merino Leather \| CF Trim \| M-DCT \| ZCP \| ED 7/18/18 The Roadster: 2006 Z4 \| Interlagos Blue \| Black Extended Nappa Leather \| Carbon Leather Trim \| Purchased 7/19/12
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11-01-2012, 08:50 PM	#13
Alexander Mad tyte EuR0 style boooi <--- Joke 212 Rep 2,472 Posts Drives: E30, E85, MKVI Join Date: Nov 2009 Location: Deal's Gap iTrader: (0)	A warning to anyone with the CDV delete... My tranny grenaded in my 335i a month after doing the delete. ~15,000 miles on it. It could be 110% coincidence, but that scared me off.
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11-01-2012, 11:25 PM	#17
i2ichal2dZ4M Lieutenant 62 Rep 516 Posts Drives: 2007 BSM Z4MC Join Date: Mar 2011 Location: Los Angeles, California iTrader: (1)	thanks for the link! order one! rough estimate how far the thread bolt? halfway?
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11-01-2012, 11:27 PM	#18
strokeoluck First Lieutenant 23 Rep 325 Posts Drives: 2007 BMW Z4 M roadster Join Date: Sep 2012 Location: Minnesota iTrader: (0)	Thanks, just ordered and will give it a shot.
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11-02-2012, 12:01 AM	#20
txz4 Major 59 Rep 1,097 Posts Drives: 2006 M coupe Join Date: Oct 2010 Location: san antonio, texas iTrader: (3)	i have just a little bit more play in my clutchstop, like beta said, its odd having to teach yourself to put the clutch in all the way before shifting. When you have all that play, you dont have to be fully depressed to be fully in, the clutch stop completely curbs this, meaning you need to be conscious about being fully depressed.
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