Caliper/Brake bleeding
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Joined: Mar 2002
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From: N. Hollywood Ca
Caliper/Brake bleeding
Oh I almost forgot (and thought it should go in a different thread) ... what is the procedure to bleeding the brake system on these 'vettes? I recently bought a new/rebuilt ( :confused: ) front left caliper from Autozone for $55.99 (plus ~$35 core) from advise seen on here ( :yesnod: ). I will be installing it this Saturday for my Father while he is working. :blueangel: Thanks again guys! :cheers:
Melting Slicks
Joined: Aug 2000
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Re: Caliper/Brake bleeding (MRZ28HO)
You can check previous threads if you're interested in the different bleeding techniques (vacuum, gravity, pumping). I've only done the two person pump bleeding; one at the pedal and the other at the bleeder. Pedal person pumps the pedal a few times, holds pressure on the pedal while the bleeder person opens the bleeder, tells the bleeder person when the pedal is at the floor, waits for the bleeder person to close the bleeder to let the pedal back up and continues that way until no air is coming out of the bleeder. The MC is covered all this time, but monitored so that the fluid doesn't get too low.
If you're asking the order to bleed the calipers, it's:
LR -- RR -- LF -- RF
or, if you have dual bleeders on the rear, it's:
LRi -- LRo -- RRi -- RRo -- LF -- RF (i = inner bleeder, o = outer)
FWIW, There are some who say if you only replace a front caliper, you should only have to bleed the front calipers (same for rear). There are also some who say, you should replace the calipers in pairs.
Personally, I agree with replacing the calipers in pairs, but when I bleed, I bleed all four.
Be careful with those flare nuts (I hope you have flare wrenches & a pair of vice-grips just in case).
Good Luck.
If you're asking the order to bleed the calipers, it's:
LR -- RR -- LF -- RF
or, if you have dual bleeders on the rear, it's:
LRi -- LRo -- RRi -- RRo -- LF -- RF (i = inner bleeder, o = outer)
FWIW, There are some who say if you only replace a front caliper, you should only have to bleed the front calipers (same for rear). There are also some who say, you should replace the calipers in pairs.
Personally, I agree with replacing the calipers in pairs, but when I bleed, I bleed all four.
Be careful with those flare nuts (I hope you have flare wrenches & a pair of vice-grips just in case).
Good Luck.
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Joined: Mar 2002
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From: N. Hollywood Ca
Re: Caliper/Brake bleeding (jerryp58)
Thanks, I did a search for "bleeding", "calipers" and such, but came up empty. :confused: I had read somewhere about the second bleed pattern you posted, I thought all 'vettes had to go through this. :o I doubt our L48 has the dual bleeders in the back, guess it's just like any Chevy then. :)
I would have like to have gotten the Zip brake kit (rotors, calipers, pads, lines, fluid, master cylinder) for about $600, but my Father prefered the least expensive route ... for now. :) Next will be a suspension kit (9-leaf, coils, shocks,front/rear sway bars) and OEM bushings ... :smash:
I would have like to have gotten the Zip brake kit (rotors, calipers, pads, lines, fluid, master cylinder) for about $600, but my Father prefered the least expensive route ... for now. :) Next will be a suspension kit (9-leaf, coils, shocks,front/rear sway bars) and OEM bushings ... :smash:
Drifting
Joined: Feb 2001
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From: San Francisco, CA
Re: Caliper/Brake bleeding (MRZ28HO)
Even if you do not change both calipers, you should replace both sets of pads up front. And might as well check the rears. Now is the time while you have the wheels off. Have fun!! :cheers:
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From: N. Hollywood Ca
Re: Caliper/Brake bleeding (R. Bruno)
Welp, I finished installing the caliper, not that bad. :smash: I didn't install anything else, the pads were about 3/8"-1/2" thick and even. I bleed the front to get pressure in the system, then proceeded to do all four corners. Boy was the fluid filthy, at times it came out creamy and other times dark. :nonod: Now it has fresh new brake fluid. :yesnod:
Coincidentily, I discovered that from '77 (or '78, can't remember) the rears have dual bleeders. So I had to do the special bleed job ... no biggie. :)
Coincidentily, I discovered that from '77 (or '78, can't remember) the rears have dual bleeders. So I had to do the special bleed job ... no biggie. :)
