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Front Brakes, Calipers, & Brake Fluid |
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PHAT69AMX
AMC Addicted Joined: Jul/07/2007 Location: West Virginia Status: Offline Points: 5905 |
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Posted: May/19/2017 at 12:12pm |
You're supposed to crack open the Bleed Screws BEFORE pushing the Pistons back into the Calipers to install New Front Brake Pads, right ?
Pushing the Pistons back into the Calipers WITHOUT cracking the Bleed Screws causes problems doesn't it ? The hydraulic brake system works by "dis-allowing" backwards flow of the fluid obviously. Wouldn't pushing pistons in without opening bleed screws "blow-out" the Cups in the Master Cylinder ?
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304-dude
AMC Addicted Joined: Sep/29/2008 Location: Central Illinoi Status: Offline Points: 9081 |
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I never had to crack the bleeds when returning the pistons into the caliper on a closed brake system. Assuming brakes have already been bled previously.
I guess if you want to do a small flush to add new fluid, you could crack the bleed when returning the piston to seat into the caliper bore, as long as the bleed is top and nobody messes with the pedal before closing the bleed, after piston is set. |
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71 Javelin SST body
390 69 crank, 70 block & heads NASCAR SB2 rods & pistons 78 Jeep TH400 w/ 2.76 Low 50/50 Ford-AMC Suspension 79 F150 rear & 8.8 axles Ford Racing 3.25 gears & 9" /w Detroit locker |
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tufcj
Supporter of TheAMCForum Supporter of TheAMCForum Joined: Jul/10/2007 Location: Watkins, CO Status: Offline Points: 4066 |
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When the brake pedal is NOT depressed, fluid is allowed to flow back (how else would the brakes release?). I've never opened the bleeders. I do remove the cap from the MC, and make sure the fluid is down some, so that it doesn't overflow.
On new cars with ABS, I have read that you should open the bleeders to avoid pushing contaminates back into the ABS system. Bob tufcj |
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69 AMX
74 Javelin AMX 67 Rogue If you need a tool and don't buy it... you'll eventually pay for it... and not have it. Henry Ford |
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