g morgan
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| posted on 3/9/08 at 06:33 PM |
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mk indy brakes
I need help please ,I have fitted the brakes to my indy it has wilwood calipers on the front and sierra on the rear. With a new sierra master
cylinder.Having bled the brakes several times the pedal still goes to the floor on the first push then it gets better.What could be the problem,I am
starting to pull my hair out.
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mackei23b
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| posted on 3/9/08 at 06:42 PM |
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If you have discs on the rear, you'll need to take the rear calipers off and bleed with the nipple at the top. Don't know if that
helps?
Cheers
Ian
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Hellfire
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| posted on 3/9/08 at 06:42 PM |
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Sounds like you have air in the MC. The Sierra MC has a strange tandem type double seal system utilising one rod with two seals feeding front/rear
systems.
It is a bit of a bitch...
Also - it depends on the route of your rear lines. Sometimes airlocks are very common... You really have to fire it through. Are you turning the rear
calipers upside down to release all air out of the calipers. If you are doing it in-situ then the air will not escape from the top inside of the
caliper.
Using a one-man bleeding system is beneficial as it automatically shuts off feedback of air and allows a fast rate to expell air.
Persiverence is the key...
Steve
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vindicator
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| posted on 3/9/08 at 06:42 PM |
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I had the same problem that seemed to get worse as time went on. I had dual m/c's one for the front and the other for the back.
I was also given the advice to start at the front and bleed and if this did not work try starting with the back brakes and work forward to the m/c.
It turned out that inside the front m/c the inside was scored and had some rubber bits inside. Had a new one given, fitted and re-bled and the brakes
are ok.
hth
//timr.spaces.live.com
[Edited on 3-9-2008 by vindicator]
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mad-butcher
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| posted on 3/9/08 at 06:52 PM |
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You haven't got any nasty humps in the pipe work have you. ie up and over the dif, this tends to cause problems pushing the fluid over, I
personaly use a gunson pressure bleeder, is it sierra discs or drums on the rear if discs have you taken them off to bleed them, the bleed nipple
needs to be at the top
Tony
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StevieB
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| posted on 3/9/08 at 06:55 PM |
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I have exactly the same setup and exactly the same problem.
It turned out to air in the system. As said, you need to unbolt the rear calipers and rotate them so the bleed valve it as high as possible - keep
the pads fatened around the disc though as you truggle otherwise (I found out the gard way!). I also bled every union which all had a it of air
trapped in them.
You'll also need to bleed it a few imes over, giving it a day or so to settle as you'll get some mnute bubbles suspended in the fluid that
will settle overnight.
Brakes feel good now though!
[Edited on 3/9/08 by StevieB]
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mad-butcher
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| posted on 3/9/08 at 07:56 PM |
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Thought I had a pic on bleeding the rears
 
Rescued attachment P7100017.JPG
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.jpg){kind=avatar}
