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07-14-2005, 09:43 PM | #1 |
Scooby Newbie
Member#: 90326
Join Date: Jul 2005
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front calipers no pressure
i need your help guys i just changed my front left caliper because i accidently blew a piston off making a stupid mistake bleeding my brake system. i replaced the new caliper aligned the banjo bolts then tried to bleed the system but nothin is happening, the front calipers just keep ejecting air while i push the pedals this is happening to both the front calipers but the rear ones are fine, did i blow the master cylinder or something? can someone please tell me whats going on ?
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07-14-2005, 10:11 PM | #2 |
Scooby Guru
Member#: 6486
Join Date: May 2001
Chapter/Region:
MWSOC
Location: S.E. wisconsin
Vehicle:00 Impreza 2.5 RS Blue Ridge Pearl |
Well it sounds like you really want to be able to work on your own car. And that's good. But, It also sounds like you need some lessons on the basics before you get yourself hurt.
keep your eye on the level of brake fluid in the brake fluid reservoir. It's the larger yellow one in the back of the engine bay. You should really get someone over there to help you bleed the brakes. In general here's the technique. 1.press and hold brakes 2.open bleeder 3.close bleader 4.release brakes Or you can try this: Get some clear tubing from a hardware store. Put a line wrench on the bleeder. Put the clear tubing on the bleeder. Run the tubing into a clear container. Pour a little brake fluid into the container so that the bottom of the tube is coverred. You can do this one yourself. 1.open bleeder 2.pump brakes 3.check tube for bubbles 4.if there are bubbles repeat steps 2 & 3. 5. if no bubbles then close bleeder. Or the last and best way would be to purchase a mightyvac. Should you decide to use a mightyvac, be sure to put some thread/plumbers tape on the bleeder screw threads so that air does not leak past the threads while it's loose. If you don't. you'll be pumping all day thinking it still has air in it. Good luck and keep the fluid up to the full mark or you'll have to start over again. |
07-14-2005, 10:26 PM | #3 |
Scooby Newbie
Member#: 90326
Join Date: Jul 2005
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thats what im doing but it just seems like an endless amount of air coming fron the caliper and the fluid from the master cylinder dosent even go down
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07-14-2005, 11:35 PM | #4 | |
Scooby Guru
Member#: 6486
Join Date: May 2001
Chapter/Region:
MWSOC
Location: S.E. wisconsin
Vehicle:00 Impreza 2.5 RS Blue Ridge Pearl |
Quote:
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07-15-2005, 02:04 AM | #5 |
Scooby Newbie
Member#: 90326
Join Date: Jul 2005
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im using the technique with the clear tubing and pumping the brakes, every time i pump the break i hear a squishy sound coming from the engine bay, and it feels like the caliper isnt getting filled with fluid because the fluid level from the resevior isnt even decreasing and resistance dosent build as i pump the brake pedals
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07-15-2005, 07:41 AM | #6 |
Scooby Specialist
Member#: 3400
Join Date: Jan 2001
Chapter/Region:
South East
Location: Boca Raton, FL
Vehicle:2016 Red Pirate Cat 1981 CJ-7 |
Exactly what happened when you broke the caliper?
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07-15-2005, 09:05 AM | #7 |
Scooby Newbie
Member#: 90326
Join Date: Jul 2005
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when i broke the caliper, i was pumping the brakes with calipers off and not against the rotor so a piston just shot out of the caliper body so i ordered a new caliper and replaced it the banjo bolt is on correct and everything and now im trying to bleed it and get pressure back in the system but nothing is working it seems like its just all air when i bleed the system, this goes for both the front calipers, but when i bleed the rear calipers it works. can someone please tell me wahts wrong
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07-22-2005, 03:22 PM | #8 |
Scooby Specialist
Member#: 25796
Join Date: Oct 2002
Location: Cleveland, OH
Vehicle:2012 Impreza |
I'd recommend getting a helper and doing it the two-man way. If the caliper is completely full of air, the method you're using won't work to get the air out.
You might be able to get fluid into the caliper by removing the bleeder screw and master cylinder cap and leaving it for a while, letting gravity push the fluid down. But that lets a lot of moisture into the fluid. |
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