[BMWPWR18]

Just inserted mine, huge difference compared to the oem stopper.

[skiparock]

Installed today, feels great. One thing though, I noticed a small click noise just upon pushing clutch pedal. Will spend some time to diagnose and report back


Updated: the click noise was plastic that I moved when installing. I removed nothing and just forced my hand up there, so the plastic cover thing wasn't seated correctly

[SEAT TIME RULES]

Originally Posted by Natek

A little PSA for everyone. Ive been running the clutch stop since day one of owning my car and I would find that sometimes 2nd and 3rd gear would grind when driving super hard. When cruising around town I would also sometimes feel the synchro's struggling to mate the gears(this particular feeling would happen from 2nd to 3rd). I have since backed off the rubber washers, from 3 to 2 and again from 2 to 1 and it seems to have fixed it. Kindof a bummer because it's a noticeable difference but then again, the clutch was designed to perform within a certain tolerance...

What Natek is hearing and feeling is premature syncro wear due to an aggressive setting with the clutch stop.

When I ran my 98M3/4 in Solo II BSP I had a clutch stop that I thought I had setup "just right".

Over time (2-4 yrs) I started having more and more trouble shifting from 2nd to 3rd in Solo II events. Sure enough when I had the tranny inspected that syncro cone was a mess. I swapped my entire tranny out for another used one and then reset the stop much closer to the floor.

Over that long period of time the little bit the throwout bearing was not totally disengaging the clutch caused this wear on the cone.

So be conservative with the setup! And I loved the Clutch Stop as well

YMMV,
HAZMAT

[untzklee]

Holy ****. This was far the best mod ever I put in the car. I used 3 shims and you don't need to remove the panel. Took 9 seconds. I think it's perfect and no I didn't have any issue with grinding gears.

[untzklee]

Originally Posted by SEAT TIME RULES

What Natek is hearing and feeling is premature syncro wear due to an aggressive setting with the clutch stop.

When I ran my 98M3/4 in Solo II BSP I had a clutch stop that I thought I had setup "just right".

Over time (2-4 yrs) I started having more and more trouble shifting from 2nd to 3rd in Solo II events. Sure enough when I had the tranny inspected that syncro cone was a mess. I swapped my entire tranny out for another used one and then reset the stop much closer to the floor.

Over that long period of time the little bit the throwout bearing was not totally disengaging the clutch caused this wear on the cone.

So be conservative with the setup! And I loved the Clutch Stop as well

YMMV,
HAZMAT

I will take this for consideration and remove one of the shim. I don't want to grind my gears.

[SEAT TIME RULES]

Originally Posted by untzklee

I will take this for consideration and remove one of the shim. I don't want to grind my gears.

My point is you won't know if its 100% disengaged. It took a long time before my transmission exhibited problems.

I loved the mod along with the UUC shift kit. Just be careful.

if it means anything to you guys I plan on adding it again

[K9GunSlinger]

Anyone have the stock clutch stop available that i can either pick up from you or buy?! thanks

[untzklee]

So I took out one of the shim and now I'm running 2 and it's noticeably longer but eh I will be safe than sorry. I will need another time to get use to the new setting. Can't shift smooth for some reason ugh

[geogerf]

Originally Posted by untzklee

So I took out one of the shim and now I'm running 2 and it's noticeably longer but eh I will be safe than sorry. I will need another time to get use to the new setting. Can't shift smooth for some reason ugh

It took a while (6000 miles) for my clutch to feel like it was shifting smoothly. Even now, I still get choppy shifts. Reading the forums, all BMW clutches are like this.

As for the clutch stop problems, now I am getting paranoid. How can you check this on the Bimmerlink app, Lukeni?

[SEAT TIME RULES]

One sure way to check out clearance is wait until your car is on a lift and have someone else check from underneath when you have the pedal completely depressed. On most Clutch cars their is an inspection Window/port that you can look into with a flashlight.
Another way is to feel and listen to see if its 100% off the flywheel.

Make sense?

I really wasn't trying to scare anyone, just want everyone to be careful with this great mod...

[hshot_rooke]

Originally Posted by Lukeni

I have installed the clutch stop for about 2 weeks. I was very concerned about weather the clutch will fully disengage or not. So i took my bimmerlink app and read out the clutch torque sensor. I tested multiple times if any torque is transfered to the clutch when fully disengaged. And the answer is no: clutch is fully disengaged (with 3 of 4 washers) and from this pov there is no reason to worry about additional wear.

Lukeni, do you mean all 3 shims then?

The one I ordered came with 3 rubber shims/washers plus the top of the stop.
Are you saying at 3 shims/washers (all of them that came with the clutch stop) there is no reason to worry?

Can you clarify? thx.

[geogerf]

Well today I used the AWRON gauge to check my torque output. I fully depressed the clutch, put into first gear, and revved. The output was 0. I think this is the same test / readout Lukeni had performed with BimmerLink

[Lukeni]

Originally Posted by hshot_rooke

Lukeni, do you mean all 3 shims then?

The one I ordered came with 3 rubber shims/washers plus the top of the stop.
Are you saying at 3 shims/washers (all of them that came with the clutch stop) there is no reason to worry?

Can you clarify? thx.

Sorry...i meant 2 out of 3. i reduced it to 1 washer now.

[M2guru]

more information for your consideration:

http://f87.bimmerpost.com/forums/sho....php?t=1347033

[DroneandDone]

Originally Posted by Lukeni

Sorry...i meant 2 out of 3. i reduced it to 1 washer now.

why did you reduce it further if it was fully disengaged?

[David.m]

Originally Posted by geogerf

As for the clutch stop problems, now I am getting paranoid. How can you check this on the Bimmerlink app, Lukeni?

With Bimmerlink I use the sensor value 'Kupplungsmotormoment Istwert' (google translates it to 'Clutch motor torque actual value'). I have the Clutch Stop + 3 washers installed & get 0Nm sensor value reading with both the clutch fully out (in neutral) or fully depressed (neutral or in gear). Letting out the clutch slowly in gear initially shows 3-5Nm at about the same point at which the auto-rev increase kicks in, with the 3 washers this is roughly 1-2 inches off the floor.
Assuming that sensor value is correct I doubt there is a problem providing you do the shifting with your clutch fully depressed. Like many others I get quicker & smoother changes with 3 washers but am conscious there is less room for error so a lazy shift won't go well.

[Lukeni]

Originally Posted by DroneandDone

why did you reduce it further if it was fully disengaged?

I did the reving while in 1st gear pressing the clutch" test. My bimmerlink showed me 30-70nm torque on the clutch. However the car did not creep forward. I tested with engaged clutch and no gear selected. Had again 30-70nm on the clutch. Must be a bad readout if you ask me (?). To be safe in any case im testing with 1 washer now.

[DroneandDone]

I understand. Thanks for testing.

[skiparock]

Anyone take a pic of where the clutch window is under the car? Before I crawl under and visually see if the clutch is disengaged with 3 washers want to ensure the window is still being installed by bmw

[alscks0414]

Removed my BMS clutch stop last night.
I choose to be safe than sorry later... I love the feeling of the stop with 3 washers.. If someone confirms by seeing the window physically looking at complete disengagement at full clutch press with 3 washers.. Maybe I will put it back on again.. haha

Just keep in mine that the plastic nail that goes in to secure the fit of the stop, it wears pretty easy when you install and take it out.. Few times of reinstall will make the stop not be in good fit..

[hshot_rooke]

Originally Posted by geogerf

Well today I used the AWRON gauge to check my torque output. I fully depressed the clutch, put into first gear, and revved. The output was 0. I think this is the same test / readout Lukeni had performed with BimmerLink

How many washers do you have on? All 3?

[geogerf]

Originally Posted by hshot_rooke

How many washers do you have on? All 3?

Yes