|
06-01-2022, 11:34 PM
|
#1 |
|
Who Changed This?
 
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,093
|
Drum Brake Operation
I'm seeing where the claim has been made that the master cylinder of a drum brake system carries residual pressure to keep the wheel cylinders partially pressurized. The springs always compress the pistons back into the wheel cylinder when the brake pedal is released. Here's a video that covers the action of a drum brake system.
https://www.mechanicalbooster.com/20...akes-work.html
__________________
~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
|
|
|
06-02-2022, 02:46 AM
|
#2 |
|
Registered User
Join Date: Mar 2015
Location: washington
Posts: 2,162
|
Re: Drum Brake Operation
Some more information on on system;
https://www.freeasestudyguides.com/r...eck-valve.html |
|
|
|
|
06-02-2022, 10:36 AM
|
#3 |
|
Registered User
Join Date: Jan 2007
Location: Puyallup, WA
Posts: 1,661
|
Re: Drum Brake Operation
I've been hearing (mainly here) that some of the new master cylinders don't have the residual check valves in them.
__________________
72 C10 lwb fleetside -stock 350/350 combo |
|
|
|
|
06-02-2022, 11:02 AM
|
#4 |
|
Registered User
Join Date: Apr 2010
Location: So Cal
Posts: 1,413
|
Re: Drum Brake Operation
This has been explained here before.
__________________
'67 GMC 2500, 292, 4spd, AC |
|
|
|
|
06-02-2022, 02:52 PM
|
#5 |
|
Registered User
Join Date: Nov 2001
Location: Old Bridge,NJ
Posts: 814
|
Re: Drum Brake Operation
Good information here. Any info with the porportioning valve workings with manual drum brakes front and brake.
|
|
|
|
 |
| Bookmarks |
|
|
Linear Mode
