brake pedal hard, then soft
#1
Racer
Thread Starter
brake pedal hard, then soft
Folks, pedal on my 71 is rite at the top after caliper rebuild and new master, adjusted rod also, then start car and it goes down 1/2 way, just to be sure I bleed brakes
again with the special tool that sucks the oil, start car and pedal goes dowm, this does not make sense to me, i'm an old fart and must have missed something, it
is power brakes and good vacume 18 lbs on engine, pls help...Thanks Mike.
again with the special tool that sucks the oil, start car and pedal goes dowm, this does not make sense to me, i'm an old fart and must have missed something, it
is power brakes and good vacume 18 lbs on engine, pls help...Thanks Mike.
#3
Melting Slicks
Sounds like normally functioning power brakes to me. Did you drive it?
#4
Get a pressure bleeder. Or make a pressure bleeder... depending on how much of a hurry you are in.
https://www.corvetteforum.com/forums...y-version.html
https://www.corvetteforum.com/forums...y-version.html
Last edited by carriljc; 12-07-2018 at 10:22 AM.
#6
in addition to the previous comments about bleeding the master, what sequence did you use to bleed the brakes and did you use anything to tap the calipers while bleeding to dislodge air bubbles?
#7
Racer
Thread Starter
at top when car not running, do not think air, rebuilt master also. Thanks
#8
why did you jack the car up high in the car should be level, rear calipers have two bleed screws each, rr, lr, rf, lf is the sequence. Have always gravity bled and have never had a problem.
#9
Le Mans Master
Member Since: Aug 2017
Location: Cool Northern Michigan
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Without tilting the MC around is exactly why bubbles get trapped in bore of the MC. This is why it seldom bleeds & works well on a level car. That trapped bubble is also why pressure bleeders are so successful at removal of the last bubble.
#10
Folks, pedal on my 71 is rite at the top after caliper rebuild and new master, adjusted rod also, then start car and it goes down 1/2 way, just to be sure I bleed brakes
again with the special tool that sucks the oil, start car and pedal goes dowm, this does not make sense to me, i'm an old fart and must have missed something, it
is power brakes and good vacume 18 lbs on engine, pls help...Thanks Mike.
again with the special tool that sucks the oil, start car and pedal goes dowm, this does not make sense to me, i'm an old fart and must have missed something, it
is power brakes and good vacume 18 lbs on engine, pls help...Thanks Mike.
Read this.
https://www.corvetteforum.com/forums...-cylinder.html
Bench Bleeding is a good start to shorten the time for on car bleeding, but on car bleeding will insure you get all the air out of the MC.
#11
I use the Motive pressure bleeder. Fast, visual, and once you see all the doo doo you can flush out, you will never do it any other way.