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E36 M3 (1992-1999) {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999


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Old Wed, Apr-24-2019, 03:24:44 AM   #1
sivikvtec
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Default Clutch master cylinder plunger offset after replacing pedal

So I might have done something stupid.

I replaced my clutch pedal and had amost everything back together except for the top bolt that runs through the master cylinder. I then pressed on the clutch pedal with my hands and noticed the entire master cylinder was moving up/down with the pedal (since it was only held on by one bolt). Since I was trying to figure out why/how it was moving, I did this several times.

I’m concerned that I damaged the master cylinder by doing this because the piston is not centered....but I’m not sure if it looked like this before.

Does this look abnormal? Everything is back together and the pedal is not being pressed in the photo.



Last edited by sivikvtec; Wed, Apr-24-2019 at 03:29:36 AM.
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Old Wed, Apr-24-2019, 03:53:56 AM   #2
Braymond141
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Default Re: Clutch master cylinder plunger offset after replacing pedal

It’s fine. It doesn’t work like you are thinking.
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Old Wed, Apr-24-2019, 04:05:59 AM   #3
sivikvtec
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Default Re: Clutch master cylinder plunger offset after replacing pedal

No chance I bent the shaft, or the piston is somehow sitting crooked inside the cylinder??
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Old Wed, Apr-24-2019, 06:08:58 AM   #4
sivikvtec
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Default Re: Clutch master cylinder plunger offset after replacing pedal

Never mind, I see what you are saying, it’s the larger diameter silver shaft that moves and that is obviously still aligned.

The only remaining concern is if I stressed the fittings or bent the hard line to the slave...guess I’ll just keep an eye on it.

Last edited by sivikvtec; Wed, Apr-24-2019 at 02:11:16 PM.
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Old Wed, Apr-24-2019, 06:12:43 AM   #5
Braymond141
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Default Re: Clutch master cylinder plunger offset after replacing pedal

Nah, that's all fine too.

You really should replace the master every 200k miles or so. Worse case, you replace it.
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Old Wed, Apr-24-2019, 05:36:38 PM   #6
sivikvtec
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Default Re: Clutch master cylinder plunger offset after replacing pedal

One more question, is the pedal supposed to have two springs or one?

My 1998 sedan doesn’t have one at the top of the pedal, p/n 35211158489, it only has the larger spring that connects to the pedal below the master cylinder mounting point.
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Old Wed, Apr-24-2019, 05:49:57 PM   #7
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Default Re: Clutch master cylinder plunger offset after replacing pedal

It has what you see on yours. Not all E36 are applicable to the diagrams.
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Discussing Clutch master cylinder plunger offset after replacing pedal in the E36 M3 (1992-1999) Forum - {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999 at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)