Inexpensive Clutch Stop - The Unofficial BMW M5 Messageboard (m5board.com)

M-Fünf · 5th November 2003, 18:58

Good Morning...

ELEVENS suggested that I post pictures of a mod that I did a while back, so here it is:

I like my clutch engagement to start just after the pedal begins to move, so I decided to add a clutch stop to the pedal. The stock part is a simple plastic "bumper" that is pressed into the threaded hole (nice of BMW engineers to thread the hole, knowing that some of us would want a clutch stop

)

I went to the UUC website, but their clutch stop was $20 plus shipping ($6.90 for CA)

:

UUC Big-Boy Clutch Stop

Then I went to the McMaster-Carr website (www.mcmaster.com), and found a similar item (machine leveling foot) for under $2 with free shipping...No Brainer

:

McMaster-Carr "clutch stop"

I had to cut the threads shorter since the threaded section was too long, but a hacksaw worked fine for that. I also removed the second "jam" nut they provided with the leveling foot. As you can see, the clutch strikes the stop just left of center, as I probably push the pedal that way, but is still well on the stop, and won't bypass it. I can't remember the exact thread, but I believe it was 3/8-16 (I know UUC shows it as an M10

) My only complaint is that the nylon base material is fairly hard, and makes for a firm stop when I depress the clutch (jars my leg a bit with a quick clutch move). If you want a slightly softer stop, go with a rubber based stop...

Anyway, if you'd like more information, or other pic's, let me know and I'd be glad to help

greg · 6th November 2003, 09:07

The only problem is that the point at which it grabs varies with temperature, clutch wear, the auto-adjustment mechanism, etc. Just be sure you're really getting full disengagement!

atomic80 · 6th November 2003, 09:11

I have to admit that I bought that UUC Big Boy thinking that would solve my clutch stop woes. I've already broken the OEM stop three times! It's a cheap brittle plastic that's easily broken given the right type of impact. I tried the UUC Big Boy without luck. I'd be very happy if someone manages to come up with a suitable solution that works well. The one from McMaster-Carr looks like a possible choice for me.

MIB · 6th November 2003, 09:37

Old drag racers die hard.

I just siliconed a block of wood under the carpet.

It works perfectly. It will never break. (And Yes it is tempory until I work out what I want to use.)

I don't have adjustability problems or wear problems anymore.

P.S. Did I happen to mention I love this clutch and I've found a viable soloution to keep it quiet when in neutral with the clutch out. (Only time when rollover noise is present).

kwalls · 6th November 2003, 10:20

Mark said

Quote:

I just siliconed a block of wood under the carpet

You might want to keep that rollover noise to scare the termites away from your clutch stop.

Ken

BmwNut · 6th November 2003, 17:26

Quote:

You might want to keep that rollover noise to scare the termites away from your clutch stop.

So what's the trick?

Terk · 6th November 2003, 20:27

Quote:

Originally posted by kwalls
Mark said
You might want to keep that rollover noise to scare the termites away from your clutch stop.
Ken

Mark will use Vegemite

to control those critters.

Regards,

Terk.

MIB · 6th November 2003, 21:57

Quote:

Originally posted by Terk
Mark will use Vegemite to control those critters.

Regards,

Terk.

What do you think we make Vege-MITE out of.

Ter-MITES.

Terk · 6th November 2003, 22:09

Quote:

Originally posted by MIB
What do you think we make Vege-MITE out of. Ter-MITES.

Nice come back Mark. I guess I had to ask huh.

And when did say you were going to "Mec-ee-co"

Regards,

Terk.

MIB · 7th November 2003, 05:44

Quote:

Originally posted by Terk

Nice come back Mark. I guess I had to ask huh.

And when did say you were going to "Mec-ee-co"

Regards,

Terk.

Hey T-Man,

I'll be in Mec-ee-co from 14-18 of November. L.A 13, 18,19.

P.S. Don't warn the locals.