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#1
13th August 2013, 10:13 PM
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Brake bleeding
How long should it take to bleed brake lines from dry? I have just been trying but with no success. I have also tried my eazibleed kit and that's not working either?
Has anyone got any ideas what I'm doing wrong or is my master cylinder knackered? (Mx5) David
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Click to see my build photos on Flikr http://www.flickr.com/photos/67112582@N03/ Saturn MX5 Based Chassis, Limited Slip Diff & 2.4 Quick Rack. Build cost.... seems to be spending more on tools than car bits at the moment! (they will be handy in the future though). Car iva'd and passed 15/08/2014. Finished weight 572kg. 
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#2
13th August 2013, 11:02 PM
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Took me about half an hour
 I used a syringe to inject fluid in through the caliper bleed nipples.
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#3
13th August 2013, 11:15 PM
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Thanks.
I will try again tomorrow. I got the occasional bubble in the jar but didn't seem to be getting any fluid coming out. I will try putting some in with a syringe as well David
__________________
Click to see my build photos on Flikr http://www.flickr.com/photos/67112582@N03/ Saturn MX5 Based Chassis, Limited Slip Diff & 2.4 Quick Rack. Build cost.... seems to be spending more on tools than car bits at the moment! (they will be handy in the future though). Car iva'd and passed 15/08/2014. Finished weight 572kg.
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#5
14th August 2013, 10:24 AM
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David,
If theres nothing but air coming out the calipers, whats the fluid level doing in the reservoir? If its dropping, the fluid must be going somewhere. Check all around the lines/joints/calipers for leaks. If theres no leaks, keep at it. If the level doesn't change, you've probly got a blockage somewhere.
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#6
14th August 2013, 11:49 AM
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thanks
i will try again tonight and keep going a bit longer!! when I did the clutch I used the eezibleed which worked a trick. it doesn't work well with the brakes as i had to buy a really large universal cap that doesn't seal very well. David
__________________
Click to see my build photos on Flikr http://www.flickr.com/photos/67112582@N03/ Saturn MX5 Based Chassis, Limited Slip Diff & 2.4 Quick Rack. Build cost.... seems to be spending more on tools than car bits at the moment! (they will be handy in the future though). Car iva'd and passed 15/08/2014. Finished weight 572kg.
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#7
14th August 2013, 12:02 PM
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If the master cylinder is lower than the calipers you may have a problem at first getting the fluid to the calipers.
Possibly open the bleed screws with the calipers hanging down and let them drip and see what happens . Have a look and make sure piston is not stuck in.
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Cost : Little as possible. Thanks : To those who by their generosity my build has progressed. Its a handmade sports car not a flaming kit car !!! If at first you dont succeed,avoid skydiving... No parachute require to freefall,only if you want to do it twice.
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#8
13th August 2013, 11:04 PM
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If your mx5 has abs, it may need to go on the computer to be bled via the abs pump. My golf was an absolute cow & had to go on the vag system. If it hasn't got abs, I would start checking for loose fittings. Maybe the system is sucking a little bit of air from somewhere, and air compresses easier than fluid. If this is still playing up after a quick check, I would strip the master cylinder and fit new springs & seals to it. Master cylinder rebuild kits are available on the net for about £25. Oh, have you tried bleeding the clutch ? Think it all works off the same system on the mx5. But you may need to confirm this.
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