No brake pressure on front circuit after master cylinder replacement

[e70jane]

I haven’t had time to test the booster yet. I’ll do it this weekend. By the way, here’s the old mc. If I recall, it looks identical to the new one. I don’t understand what do mean by the extended push rod? Could it have been slightly longer, but I just didn’t notice it?

[andrewwynn]

Yes you would not notice the difference in length unless you used a digital caliper.


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[80stech]

@E70Jane, What happened to the brake fluid being restricted to front driver's side ??

It might be less confusing if you stick to your original thread.

[pshovest]

I've never seem a BMW with a adjustable MC push rod. Some have a rod length adjustment on the brake pedal side of the booster.
Need to be careful that shimming MC doesn't create a vacuum leak.
When the problem occurs, have you tried lifting the brake pedal with your foot to see if brake pressure is released?
Is the brake pedal return spring disconnected?
Is something interfering with the brake pedal returning fully?

[80stech]

I think this another one of those threads getting posted in multiple places/forums and everyone is getting a different piece of the story.

Plus probably some private messaging and Andrew Wynn adding to the confusion.

[andrewwynn]

Correct.

Regarding [mention]e70jane [/mention]topic of the automatic brakes go here:

https://r.tapatalk.com/shareLink/top...ink_source=app


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[e70jane]

Originally Posted by andrewwynn

Correct.

Regarding [mention]e70jane [/mention]topic of the automatic brakes go here:

https://r.tapatalk.com/shareLink/top...ink_source=app


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Thx Andrew, I’ll go back to my original thread. Didn’t mean to hijack this one during my research.

[andrewwynn]

It happens all the time when people just reply to the thread last posted. I was just as guilty not checking the thread title.


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