Brake Bleeding

mukluk · Posted: Wed Feb 20, 2013 11:27 pm Post subject:

Do you have the brake shoes turned all the way out so they lock up the drums? You can't bleed all the air out of the lines unless you do.

Once you have all the shoes adjusted out against the drums, ensure all the bleeders are fully closed, all the brake line fittings are properly tightened, and the reserviour is topped off with fluid. Next, start at the front left wheel cylinder and bleed it until no more bubbles come out. From there go to the right front, then left rear, and finish at the right rear. Make sure while you're bleeding that the fluid level in the reserviour never drops to where the master starts sucking air. After all the wheel cylinders are bled, readjust the brake shoes away from the drums so they provide a very slight drag on the drum.

If you still don't get any fluid to come out of the rear cylinders after thoroughly bleeding the fronts, then you either have a line blockage, or if you've installed a dual circuit master then the rear circuit piston isn't working properly (probably a blocked compensating port).

Eric&Barb · Posted: Thu Feb 21, 2013 7:33 am Post subject:

How much push rod play do you have?
_________________
In Stereo, Where Available!

iluvmybug · Samba Member Joined: March 20, 2006 Posts: 42

yes locked all the way.

push rod play i think is 1 mm or 5-7 mm at the tip of the clutch pedal.

Eric&Barb · Posted: Thu Feb 21, 2013 7:24 pm Post subject:

Then you might need to bench bleed the MC.

Since it is in the VW now, have a helper push down on the pedal while you have the front farthest from MC bleeder open. Then close the bleeder and have the helper let up on the pedal. Repeat 20 times or till you get brake fluid coming out.

Once the above is working and bled, repeat the above on the rear axle bleeder farthest from the MC.

Do not be afraid of double check that the shoes might need more adjusting into the drums.

If still no joy, it might be you just have a bad new MC.
_________________
In Stereo, Where Available!

iluvmybug · Samba Member Joined: March 20, 2006 Posts: 42

ok, thanks a lot gentlemen, for the advice will update you as soon as i get my hands on it.

I appreciate it.

128vw · Posted: Mon May 05, 2014 6:12 am Post subject:

Has anybody tried to bleed 56 rear brakes with the bleeder on the bottom?

grandpa pete · Posted: Thu Sep 25, 2014 2:37 pm Post subject:

Just did a 67 dual master conversion
after reading all the bleeding info I decided on gravity bleeding ...
.worked great

Search " upgrade to dual master cylinder " for photos
_________________
63 two fold rag
66 sedan delivery Type 6

http://www.thesamba.com/vw/forum/viewtopic.php?t=569619&highlight=sedan+delivery

grandpa pete · Posted: Thu Sep 25, 2014 2:39 pm Post subject:

Just did a 67 dual master conversion
after reading all the bleeding info I decided on gravity bleeding ...
simple....no special tools
.worked great

Search " upgrade to dual master cylinder " for photos

Image may have been reduced in size. Click image to view fullscreen.

_________________
63 two fold rag
66 sedan delivery Type 6

http://www.thesamba.com/vw/forum/viewtopic.php?t=569619&highlight=sedan+delivery

Chris dubosq · Posted: Wed May 04, 2016 7:52 am Post subject: Re: Brake Bleeding

Hi everyone, hope you can shed some light on my brake issue,64 bug, replaced master cylinder, all rubber lines all brake cylinders, reservoir, and metal brake lines, pedal still goes to the floor even after many bleeds!!! Please help very frustrated!

Chris dubosq · Posted: Wed May 04, 2016 7:52 am Post subject: Re: Brake Bleeding

Hi everyone, hope you can shed some light on my brake issue,64 bug, replaced master cylinder, all rubber lines all brake cylinders, reservoir, and metal brake lines, pedal still goes to the floor even after many bleeds!!! Please help very frustrated!

Eric&Barb · Posted: Wed May 04, 2016 7:56 am Post subject: Re: Brake Bleeding

Chris dubosq · Posted: Wed May 04, 2016 8:33 am Post subject: Re: Brake Bleeding

Single mc, bleeding the old school way pump pump pump crack valve open repeat on all four staying with right read

Eric&Barb · Posted: Wed May 04, 2016 8:36 am Post subject: Re: Brake Bleeding

Chris dubosq · Posted: Wed May 04, 2016 8:40 am Post subject: Re: Brake Bleeding

Yes, sorry right rear. Plenty of fluid on each, very weird, had a pedal drive down the road, got back pumped out a few times went right to the floor, and btw no leaks

Eric&Barb · Posted: Wed May 04, 2016 8:46 am Post subject: Re: Brake Bleeding

Chris dubosq · Posted: Wed May 04, 2016 8:48 am Post subject: Re: Brake Bleeding

Second new one! Very strange I've had bad mc before but can't be 2 in a row can it?

Eric&Barb · Posted: Wed May 04, 2016 8:54 am Post subject: Re: Brake Bleeding

Do you think both MCs were made on the same assembly line? Then someone there could have made the same mistake on two or more MCs.
_________________
In Stereo, Where Available!

Drewmon · Posted: Wed May 04, 2016 11:02 am Post subject: Re: Brake Bleeding

I'm having a tough time getting firm pedal on the 66. It already had disks on the front, I replace the MC with a dual unit because I also put rear disks on the car. I bench bled the new MC, installed it, hooked up all the lines and did a series of bleeding, gravity, vacuum, and the old pump pump bleed thing. I have brakes, but the pedal goes down more than half before any action on the brakes.

More bleeding?

Eric&Barb · Posted: Wed May 04, 2016 11:30 am Post subject: Re: Brake Bleeding

kankles747 · Posted: Wed May 04, 2016 6:37 pm Post subject: Re: Brake Bleeding

This might be a dumb question but are you brakes adjusted?


Hello! Log in or Register \| Help \| Donate \| Buy Shirts	See all banner ads \| Advertise on TheSamba.com

Brake Bleeding
Page: Previous 1, 2, 3 ... 8, 9, 10, 11 Next Jump to:

	Forum Index -> Beetle - 1958-1967	All times are Mountain Standard Time/Pacific Daylight Savings Time Page: Previous 1, 2, 3 ... 8, 9, 10, 11 Next Jump to:
Page 9 of 11