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Re: Brake Bleeding Myth or Not. [Re: stumpy] #369077
07/07/09 03:35 PM
07/07/09 03:35 PM
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383 Offline
Too Many Posts
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Marysville, O-H-I-O
Quote:

Be sure to adjust the brakes also.




oh yea! if the drums are not adjusted, you'll have a very soft pedal until you push them out far enough to make contact with the drum, and then the pedal will firm up.

also, does your master have the residual pressure valve? it keeps around 10psi on the drums all the time to prevent the return springs from pulling them all the way back in.


**Photobucket sucks**
Re: Brake Bleeding Myth or Not. [Re: 70Cuda383] #369078
07/07/09 03:42 PM
07/07/09 03:42 PM
Joined: Sep 2003
Posts: 2,969
Far Northeast.
mymcodebee Offline OP
master
mymcodebee  Offline OP
master

Joined: Sep 2003
Posts: 2,969
Far Northeast.
Is that the propotioning valve.? If so than yes it is a factory one.

Re: Brake Bleeding Myth or Not. [Re: 70Cuda383] #369079
07/07/09 07:10 PM
07/07/09 07:10 PM
Joined: Oct 2003
Posts: 7,506
Az
Crizila Offline
master
Crizila  Offline
master

Joined: Oct 2003
Posts: 7,506
Az
Quote:

Quote:

Be sure to adjust the brakes also.




oh yea! if the drums are not adjusted, you'll have a very soft pedal until you push them out far enough to make contact with the drum, and then the pedal will firm up.

also, does your master have the residual pressure valve? it keeps around 10psi on the drums all the time to prevent the return springs from pulling them all the way back in.


That's not what the residual pressure valve is for, although you got the 10 psi right. The residual pressure valve in the master cylinder outlet port is used for drum brake applications only and its job is to keep enough pressure in the system to make sure the wheel cylinder cups stay expanded and tight up against the wheel cylinder bores to prevent air from entering the system that way. I think it was only used for a few years. They finally wised up and put springs behind the cups to do the same thing. That has nothing to do with the metering valve - and it's not your problem.


Fastest 300
Re: Brake Bleeding Myth or Not. [Re: Crizila] #369080
07/07/09 07:17 PM
07/07/09 07:17 PM
Joined: Sep 2005
Posts: 12,481
Chino Valley
RodStRace Offline
I Live Here
RodStRace  Offline
I Live Here

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Posts: 12,481
Chino Valley
Sorry if this comes across as a bit strong, but what is up with all the left field questions lately? I ask because this exact question just came up on another site.

The best way is bench bleed the master cylinder, install, then bleed the system one wheel at a time, starting at the furthest point. You can do this by gravity, vacuum, or 2 person. Follow the procedure in the manual and tell your friends to do the same with all these wacky ideas!
BTW, bleeding is the last step before the road test when doing a full brake system service. It is not all that should be done on a brake system.

Re: Brake Bleeding Myth or Not. [Re: RodStRace] #369081
07/07/09 09:15 PM
07/07/09 09:15 PM
Joined: Mar 2003
Posts: 15,493
the boonies
aarcuda Offline
I Live Here
aarcuda  Offline
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Joined: Mar 2003
Posts: 15,493
the boonies
Quote:

Sorry if this comes across as a bit strong, but what is up with all the left field questions lately? I ask because this exact question just came up on another site.

The best way is bench bleed the master cylinder, install, then bleed the system one wheel at a time, starting at the furthest point. You can do this by gravity, vacuum, or 2 person. Follow the procedure in the manual and tell your friends to do the same with all these wacky ideas!
BTW, bleeding is the last step before the road test when doing a full brake system service. It is not all that should be done on a brake system.


whats a left field question?

but ya, i agree with your method

Re: Brake Bleeding Myth or Not. [Re: aarcuda] #369082
07/07/09 09:24 PM
07/07/09 09:24 PM
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
R
RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
R

Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
Quote:

whats a left field question?


You been in Moparts too long


live every 24 hour block of time like it's your last day on earth
Re: Brake Bleeding Myth or Not. [Re: RapidRobert] #369083
07/08/09 06:46 AM
07/08/09 06:46 AM
Joined: Sep 2003
Posts: 2,969
Far Northeast.
mymcodebee Offline OP
master
mymcodebee  Offline OP
master

Joined: Sep 2003
Posts: 2,969
Far Northeast.
Sorry if it seems like a left field question.
But quite simply I know how to bleed brakes with the basic method and that was not really my question. I know the correct method by simply doing one wheel at a time with two people. Did it and brakes still are not that great. Thought I would try something else. Friend came over last night we went through two bottles of fluid on all four wheels and the brakes are better but still not up to his standards. My standards; they are fine. I have driven much worse. Just wanted to know if I could ever get them to feel like they were new again and thought that maybe another method would work better. After two hours last night my answer is still no. When I ask a question on here I get 10 different ideas some which work and others that I have already tried and failed. The good news is that everytime I ask a question I learn something new. I am not novice in the hobby but am humble enough to say that I always learn something new everytime I post a question. If I don't learn something new I atleast remember something I should have done. Like adjust my pads on the back wheels. Do I know how to do it; of course. Did I forget; of course. And now they are adjusted and ready for the trip. I still think I have other issues, maybe booster issues? I appreciate everyones input and the brakes are better just still not what I was hoping for.
Take care and see you at Carlisle or on the side or the road.

Reid

Re: Brake Bleeding Myth or Not. [Re: mymcodebee] #369084
07/08/09 06:48 AM
07/08/09 06:48 AM
Joined: Mar 2003
Posts: 15,493
the boonies
aarcuda Offline
I Live Here
aarcuda  Offline
I Live Here

Joined: Mar 2003
Posts: 15,493
the boonies
make sure the MC is well bled. sounds like it isnt. if you cant get a solid pedal with plugs in the MC ports, you wont get one with it connected

Re: Brake Bleeding Myth or Not. [Re: mymcodebee] #369085
07/08/09 06:56 AM
07/08/09 06:56 AM
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1 Offline
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Posts: 28,312
Cincinnati, Ohio
Wish you luck on your trip and have fun.

If you were close to me, I'd love to do your brakes and they would feel like new.

Re: Brake Bleeding Myth or Not. [Re: Challenger 1] #369086
07/08/09 07:18 AM
07/08/09 07:18 AM
Joined: Sep 2003
Posts: 2,969
Far Northeast.
mymcodebee Offline OP
master
mymcodebee  Offline OP
master

Joined: Sep 2003
Posts: 2,969
Far Northeast.
Appreciate the offer.

We will probably need the luck.
Motor was just installed two nights ago.
Thanks again.

Re: Brake Bleeding Myth or Not. [Re: mymcodebee] #369087
07/08/09 08:37 AM
07/08/09 08:37 AM
Joined: Sep 2005
Posts: 12,481
Chino Valley
RodStRace Offline
I Live Here
RodStRace  Offline
I Live Here

Joined: Sep 2005
Posts: 12,481
Chino Valley
Reid, I know what you mean about the knowledge base here; it's amazing!
I understand about wanting to try anything else after the normal methods don't get the results you want.
I'd suggest carefully pinching off each hose (LF, RF, rear) and trying again. I bet the pedal gets nice and hard. Often, the adjustment isn't as good as it could be since no one arcs shoes anymore. The hoses can get a bit spongy after time too. Another method I've seen to get that last bit of air out is to tap lightly on calipers to get all the air bubbles clinging to the sides to break loose and rise to the top, then gently bleed them out. Good Luck!

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