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#1
03-14-2017, 10:13 PM
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Gravity Bleeding Brakes
Just finished installing front disc brakes and all lines on my 65 GTO. The right front line didn't fit well (Right Stuff) and I ended up rebending the entire line and buying a 30" line to run from the proportioning valve to the crossmember where the supplied line ended.
Anyway, the lines from the master cylinder to the proporting valve didn't fit right either. I had to massage the inner fender a bit for clearance and loosen the bracket to get them to line up. Needless to say, I don't really want to take them loose now to bench bleed the master cylinder. Can I just fill it with fluid leave the top off, open the wheel valves and let gravity do it's thing or do I need to bite the bullet and bench bleed the master cylinder first?
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1965 GTO 389 Tri-Power 4-Speed  Johnny |
| The Following User Says Thank You to ReelFun For This Useful Post: | ||
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#2
03-15-2017, 11:26 AM
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the master cant be gravity bled, that is only for the lines & calipers etc. a new master absolutely needs to be bench bled the right way. ive had to operate the plunger 50-75 times to get all the little air bubbles to stop. might as well do it right to avoid fighting with the brakes.
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| The Following User Says Thank You to 78w72 For This Useful Post: | ||
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#3
03-15-2017, 02:55 PM
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You should be able to bleed the master on the car...just remove the lines and run those little plastic lines back into the master and pump until no air bubbles
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| The Following User Says Thank You to gtospieg For This Useful Post: | ||
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#4
03-15-2017, 03:09 PM
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Are you supposed to make sure the front of the MC is tilted up slightly during this process?
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| The Following User Says Thank You to tempest1964 For This Useful Post: | ||
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#5
03-15-2017, 03:51 PM
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Thanks, I knew you could do the lines but I wasn't sure about the MC.
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1965 GTO 389 Tri-Power 4-Speed Johnny |
| The Following User Says Thank You to ReelFun For This Useful Post: | ||
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#6
03-15-2017, 04:32 PM
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it wouldn't be a bad idea to try and level the master so no air gets trapped
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| The Following User Says Thank You to gtospieg For This Useful Post: | ||
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