No brakes

[Alan2fast]

Hey every one. Ok my problem with the 240z is i cant get the brakes to work. When the car is off there is some pressure but still pushes down. When i turn the car on there is noting the pedal drops to the floor the only braking power i have when the car is on is if i pump the pedal new master cylinder. New booster new pads rotors. Some new brake lines. Bleed the master cylinder bleed the brakes still the same. Any ideas whats going on?

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[black gold man]

Adjust rear brakes !

[Zed Head]

And check that you didn't install the calipers on the wrong sides.  The bleeder screw needs to be on top.

[Alan2fast]

Ill give that a shot here shortly. How do i know what are adjusted Right

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[black gold man]

Take drum off if you cant turn the adjuster you will have to disassemble clean lube it. If every thing is good tighten till shoe engage the drum. With wheel on tire should spin 180 half rotation while spinning by hand. Adjust through dust cover. If everything is perfect cond The rear should adjust with parking bake use but don't count it.

[siteunseen]

Easy way to check is pull up the E brake.  If it comes up without resistance your problem is the rears.  

I rebuilt my brake system at each wheel and then shortly thereafter the booster took a crap.  

[Zed Head]

10 minutes ago, siteunseen said:

Easy way to check is pull up the E brake.  If it comes up without resistance your problem is the rears.  

That's a good check.  About 6 clicks and the lever should get tight.  If it's loose, pull it up several times and it should get tighter, if the mechanism is working.  If it does tighten up and you still have the problem, it's probably not the rear brakes, it's probably air in the system.  Many people have problems bleeding the Z brakes.

If your brakes are not factory stock, but are "upgraded" then it's a whole different story.  People always have problems with those.

Don't overlook the Brake chapter of the FSM.  http://www.classiczcars.com/files/category/11-240z/

[sweatybetty]

it took me quite a few tries to get the MC bled out completely. once thats done, bleed out the rest in this order: LR RR RF  LF

Edited October 14, 2016 by sweatybetty

[Alan2fast]

The rear brums are all new as well. Brakes are are oem stock new replacements. As far as Pulling the e-brake it feel pretty good right as you start pulling and harder at 6 clicks could maybe use a little readjusting.

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[Alan2fast]

Calipers are on the right sides with the bleeders on top.

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[gundee]

1 hour ago, sweatybetty said:

 once thats done, bleed out the rest in this order: LR RR RF  LF

 

You can but you don't have to. They are 2 seperate systems. Front first or rear first. Whatever makes you feel better.

[Alan2fast]

Im going to readjust the rear. And rebleed and hope for the best

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