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Ecklers AutoMotive
Username Post: Brakes        (Topic#348492)
bigal6947 
Poster
Posts: 33

Loc: Windsor, Missouri
Reg: 11-30-12
11-30-17 05:49 PM - Post#2716450    

Have put 55 Chevy that I just put disk brakes on all 4 corners. Have new master and all new lines/hoses. There are times when pedal goes almost all way to floor, car stops but not abrupt. It will do it after sitting for awhile after driving or when I take it out of garage. Thinking about putting a one way valve between master and back brakes so fluid will be there and not take to much pressure. Any help would be appreciated.



 
Ecklers AutoMotive
Shepherd 
Frequent Contributor
Posts: 1765

Loc: Lake George, NY
Reg: 11-11-15
11-30-17 07:02 PM - Post#2716461    
    In response to bigal6947

Lotta things can cause this, air in the system, soft/swelling hoses, improperly installed or designed caliper brackets, wrong master or proportioning valve for four wheel discs, are some possibilities.



 
acardon 
Ultra Senior Member
Posts: 11232
acardon
Loc: DFW TEXAS
Reg: 03-25-05
11-30-17 07:10 PM - Post#2716465    
    In response to bigal6947

  • Quote:
Have put 55 Chevy that I just put disk brakes on all 4 corners.



You can't use a check or residual vakve on disc. There is no return spring, so any pressure will keep the pads in contact with the rotor.
What rear calipers? If the emergency brake is adjusted incorrectly on some calipers, the pads will be too far from the rotor, especially after hand brake use.

Don
66 Corvair (driving)
57 2dr HT (driving)
56 2dr HT (waiting to be restored)


 
Shepherd 
Frequent Contributor
Posts: 1765

Loc: Lake George, NY
Reg: 11-11-15
11-30-17 07:39 PM - Post#2716468    
    In response to acardon

Good point on the e brakes built into the rear calipers, they were somewhat problematic when I worked for Cadillac, especially if not used occasionally to keep them adjusted.



 
56Rat 
Poster
Posts: 10

Reg: 06-23-19
07-04-19 09:36 PM - Post#2769961    
    In response to bigal6947

Sounds like you may still have some air in the system or a possible small fluid leak.



 
acardon 
Ultra Senior Member
Posts: 11232
acardon
Loc: DFW TEXAS
Reg: 03-25-05
07-05-19 06:44 AM - Post#2769975    
    In response to 56Rat

  • Quote:
Sounds like you may still have some air in the system or a possible small fluid leak.



After 2 years, I hope not.

Don
66 Corvair (driving)
57 2dr HT (driving)
56 2dr HT (waiting to be restored)


 
Beltfed 
Poster
Posts: 33

Reg: 10-04-18
07-05-19 08:46 AM - Post#2769977    
    In response to acardon

They do make residual valves for disc brakes. The are set at two pounds. Drums valves are 10 pounds. If your master cylinder is under the floor and below the brakes, they are suggested. Check Master Brakes web site.



 
Bad56Sedan 
"12th Year" Gold Supporting Member
Posts: 1095
Bad56Sedan
Loc: Pasadena, Texas
Reg: 04-29-04
07-10-19 02:15 PM - Post#2770394    
    In response to bigal6947

Original post, 11/30/17,
New reply, 07/04/19,
I say some body hand me another cold one!
I sure hope the original poster has a follow up soon!
I'll take the time to go through the run down.
wonder what he found?
is his internet that slow?
Hopefully he posts what the issue was in the next 50 years, cause after that I won't be around to see it.
Some are thinking did he sell the car?
some may be thinking, " I sure hope he is still not bleeding them".
gud lawd that's a lot of brake fluid!
I know a lot of people have seen the other post about the 12 driving tips.
I saw that and I immediately thought you have got to be kidding me.
I don't even want to go any further about it or even address it but it looks like it has a link to something that should not be here.
I'm hoping Tony see's that an addresses that BS.

VC56S 2 door Sedan, 39 Years



Edited by Bad56Sedan on 07-11-19 06:14 PM. Reason for edit: I can't spell

 
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