does it really matter which bleeder valve is opened first in flushing, outer or inner
03-08-2014, 05:46 AM
#1
Rennlist Member
Thread Starter
does it really matter which bleeder valve is opened first in flushing, outer or inner
does it really matter if the inner bleed valve or the outer bleed valve is opened first when flushing the fluid in the brake system. from the copy of the manual i have it does not specifically say which one shouyld be done first. i just did my brakes starting with the outer then the inner valve and all seem good. comments
03-08-2014, 08:15 AM
#4
Race Director
Always start with the caliper and bleeder valve farthest away from the master cylinder and work your way to the master cylinder. So yes start with the outer bleed fitting on each caliper.
03-08-2014, 09:47 AM
#5
Rennlist Member
Thread Starter
Hi tim because i think its a separate topic for everybody to respond to. The other brake flush topic i posted is a sharing of what i did to my car. You think its the same brother?
03-08-2014, 09:55 AM
#6
Rennlist Member
Thread Starter
To mike, yes i agree with you that we should all start with the wheel that is farthest from the master cylinder. I did get good results with the outer bleed valve first. I read somewhere, it think pedros garage, not sure , but some recommend starting with the inner valve really dont know if it will make a diff. You think it will?
03-08-2014, 10:02 AM
#7
Rennlist Member
Thread Starter
Im getting feedback from another forum suggesting there could be advantages starting with the inner bleed valve... A procedure yet to be confirmed true and effective.
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03-09-2014, 03:58 AM
#8
Here's my reasoning for inner first, YMMV. Why push the air bubbles any further than you have to. Since any that are past the inner bleeder are already there, why not get the ones before it out instead of pushing more air through the caliper passages? I do inner, outer, inner, done. I don't recall ever having any bubbles on the second inner, but it makes me feel better to be sure. Honestly, my gut tells me it doesn't matter, but I've always had good results with this on my 930 with 993TT brakes, so I'm stickin' with it.
03-09-2014, 05:24 AM
#9
Rennlist Member
does it really matter if the inner bleed valve or the outer bleed valve is opened first when flushing the fluid in the brake system. from the copy of the manual i have it does not specifically say which one shouyld be done first. i just did my brakes starting with the outer then the inner valve and all seem good. comments
To mike, yes i agree with you that we should all start with the wheel that is farthest from the master cylinder. I did get good results with the outer bleed valve first. I read somewhere, it think pedros garage, not sure , but some recommend starting with the inner valve really dont know if it will make a diff. You think it will?
1. Step: Bleeding (primary circuit)
Note
· Always bleed both bleeder valves on brake caliper!
· Bleed the outer bleeder valve first!
... continued ...
Bleeding brakes
3. Connect a bleeding device to the brake fluid reservoir. Switch on the bleeding device. Bleeding
pressure is approx. 2.0 bar.
4. Continue the bleeding procedure at the brake calipers. Do so in the following sequence: rear right/rear
left/front right/front left. Bleed the outer bleeder valve first.
I always return to LF outer as a final step (not specified in workshop manual ... just from experience) to adjust pedal firmness and confirm no air bubbles.
