Hi!

I'm in the process of replacing the brake lines but i'm a bit put of as to which parts I need to remove.

Since the lines connect to the combination valve and there's zero room for a wrench there i've decided to remove that valve altogether but this means removing the master cylinder from the brake booster also.

Will I need to bleed the master cylinder just because i'm disconnecting it? Will I also need to bleed the combination valve? How do I do that if so?

Is there an easier way to replace it all? I don't have any pre-cut lines so I will just have to feed the lines down and do it all by hand.

 

If you're replacing just the lines but keeping the valve and MC you might as well empty it all out and start fresh. Yes you have to bleed the MC and can be done by hand. Buy a one person bleeder kit from part store, it'll make your life easier. Once you get the lines replaced, bleed the brakes as normal using the bleeder kit.

 

Alright - well, since there's no room im kinda forced to take it all out. But bleeding the MC is using the "bench" bleed method right? Seen videos of it either way.

But no bleeding of the combination valve is needed?

 

Once you pull everything apart you are going to have to bleed the entire system.

 

What he said, cubed.


Do NOT try to find a way to get around bleeding the entire system. Just do it.


You'll feel better when you stop resisting. Assimilate! Assimilate!



Seriously, just do it.

 

Alright - how do I go about bleeding the combination valve? Bleeding everything else seems like a straight forward operation but the combination valve seems like a different story.

 

By bleeding the rr, lr, rf, then the lf brakes.

 

Simple answer -- you do not have to separately bleed the combination (proportioning) valve.

 

That's correct. Start furthest away then final line to bleed will be driver front. Make sure you constantly fill MC as you're doing it.

 

Oh wow, I have been holding off since I thought you had to bleed the combination valve....then i'll get cracking at it tomorrow!

Thanks all!