68 Chevelle drum brake problem - Chevelle Tech
Brakes, Suspension & Steering Conversion questions & more.

LinkBack Thread Tools Search this Thread Display Modes
post #1 of 9 (permalink) Old Jun 25th, 03, 5:18 PM Thread Starter
Join Date: Jun 2003
Posts: 25

I posted about a week ago because my front right drum brake was locking up and that was because of the rubber hose that goes from the cylinder to the frame.

Now the problem is that brakes don't start to engage until the pedal is halfway to the floor and at the floor the car still doesn't stop all the way. Any ideas?
SenorPickle is offline  
Sponsored Links
post #2 of 9 (permalink) Old Jun 25th, 03, 6:09 PM
Lifetime Premium Member
Join Date: Jul 1999
Location: Placerville, CA
Posts: 451

What ALL did you do to the brake system so far?? We have to have a base line here to answer a ?? like this.

'65 Maliblue 406SBC/PG TC #811
'97 HD Softtail Springer
'02 FORD Ranger FX4 Level-II 4x4
'05 Civic Si (had to due to gas prices)
'SFC, U.S. Army RETIRED (Feb 02)
harleighguy is offline  
post #3 of 9 (permalink) Old Jun 25th, 03, 6:11 PM Thread Starter
Join Date: Jun 2003
Posts: 25

Thus far I replaced the one rubber hose, I've changed out the fluid, and I've bled the system and I still have this problem. That is all that i know that has been done to the system.
SenorPickle is offline  
post #4 of 9 (permalink) Old Jun 25th, 03, 7:48 PM
Team Member
Join Date: Sep 2002
Location: Sparta, TN
Posts: 4,853

Did you replace that hose? Didn't bleed it enough, so you have air in the system, maybe? Is the pedal spongy, or does it just go all the way to the floor without any resistance at all? And how can a brake hose make the brake lock up? More questions than answers, but as already mentioned, you need to provide more information about what you have done to it. If I had to guess just by the info you have provided, you need to bleed the brakes. I'd do at least both front brakes, and if that makes it better, go ahead and bleed the rear ones too, air can travel in mysterious ways in a brake system.

1969 Malibu in progress
Olle is offline  
post #5 of 9 (permalink) Old Jun 25th, 03, 8:02 PM Thread Starter
Join Date: Jun 2003
Posts: 25

I replaced the hose. It was leaking where the hose meets the wheel cylinder. I have no idea how that made the wheel lock up, but thats what was doing it. Afterwards I bled the system, a few times, all of the wheels.

Like I said before what happens is the pedal doesn't engage until its about halfway down, then it will brake, but very very light. When its at the floor the car will still move. Frankly its very very unsafe. I have come to find that if i pump the brakes they'll work, but i have to pump them and I don't believe thats proper working condition.

My friend suggested replacing the master cylinder, any ideas?
SenorPickle is offline  
post #6 of 9 (permalink) Old Jun 25th, 03, 8:28 PM
Join Date: Jun 2003
Location: New York
Posts: 8

Sounds like you had got brake fluid on the brake shoes and that is why they were locking up. Also sounds you got air in the line somewhere, because you said it stops better when you pump the brakes. Try bleeding it starting with right rear, then the left rear, then the right front, then the left front and see what happens.

Kevin H. [img]graemlins/waving.gif[/img]
Kevins 65 is offline  
post #7 of 9 (permalink) Old Jun 25th, 03, 9:15 PM
Senior Tech Team
Join Date: Mar 1999
Location: waldorf maryland usa
Posts: 11,941

A brake adjustment may be all that you need to get the brakes to function as they should and NO, the self adjusters rarely work as designed.

Leo Paugh
Maryland Chevelle Club #017
progress has little to do with speed, but lots to do with direction.
Maryland Chevelle Club
chev64 is offline  
post #8 of 9 (permalink) Old Jun 27th, 03, 6:12 PM
Team Member
Join Date: Sep 2002
Location: Sparta, TN
Posts: 4,853

Sounds like air, I would bleed it again and make two turns around all four to be safe. Brake fluid is cheap, so it's no big deal, just takes some time. Checking the self adjusters is also a good idea, look at the little "thingie" that engages the teeth on the adjuster. It needs to be able to pivot (could be stuck?), and it also needs to engage the teeth properly (you may have to bend it a bit if it's not engaging).

1969 Malibu in progress
Olle is offline  
post #9 of 9 (permalink) Old Jun 27th, 03, 6:24 PM
Senior Tech Team
DG, my initials
Join Date: Aug 1998
Location: Springfield, Ohio
Posts: 1,922
Send a message via Yahoo to DG

Did you replace a hose, or all 3 rubber hoses?

I mean even though the outside looks ok, the inside can be really deterioated.

If you have all the air out, the fluid can collapse or balloon a bad hose.

70 Malibu

TEAM Chevelle Member #0086

Used to be a member of Tri-State Chevelle
DG is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Chevelle Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address. Note, you will be sent a confirmation request to this address.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Old Thread Warning
This Thread is more than 5084 days old. It is very likely that it does not need any further discussion and thus bumping it serves no purpose.
If you still feel it is necessary to make a new reply, you can still do so though.

Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome