Since I adjusted my rear drum brakes, its as if my car has gotten slower. When I accelerate, usually I can hear the intake pretty well, now its more dim. Then It also feels as if something is dragging it, it just feels different. This might be due to adjusting the rear drums. I did spin the tire after adjusting, and it made one revolution. Could it be too tight?
Thats all I can think of too. Why did you adjust the drums anyways?
Cause you have to adjust them as they wear out. Not doing so will wear out your front pads very quickly. Front brakes are used 80% and rear drums 20%, that's in stopping power that is. So when not adjusting your rear brakes, the 20% would be more like 15% or 10%. I might of adjusted them too tight. I mean how tight should the parking brake be?
I am sure that modern day drum brakes are self adjusting after initial install. I have never adjusted mine except after replacing for 35 years or so on imports or domestics, and my front disks have never seen accelerated wear...but hey, that's just me.....
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all modern cars (past 20+ years) have self adjusting rear drums,when equiped with rear drums that is, adjusting is rarely necessary... i have only had to adjust on older vehicles where the adjuster has seized... jack up the rear end and see if your wheel is "free wheeling" if it isn't slack it off a tad, you dont want to cook your rear shoes or overheat your rear pistons... plus its hard on your transmission if the brakes are dragging
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Cause you have to adjust them as they wear out. Not doing so will wear out your front pads very quickly. Front brakes are used 80% and rear drums 20%, that's in stopping power that is. So when not adjusting your rear brakes, the 20% would be more like 15% or 10%. I might of adjusted them too tight. I mean how tight should the parking brake be?
yeah, like some other posters said, they're usually self adjusting. To get them adjusted properly find out how they auto-adjust. In some cases they adjust when you press on brakes and theres a lever adjusting up the screw, or by the hand brake, or when you back up and slam the brakes. Adjust it loose and try it up in ur driveway, you'll see if they self adjust, if they do, you never need to touch em. You just gotta be careful they dont rust and seize if you're where theres severe winterstorms+salt.
have somebody pressing the brakes while you observe the mechanism...
OR, do the all question's solution: GO TO THE DEALER, haha
The drums are self adjusting, but only self adjust in very small increments. (Only while driving and braking in reverse too)
The proper way is adjust the shoes so that they drag on the drum slightly with the parking brake engaged at 2 to 3 clicks. No drag what so ever when the parking brake is released.
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Rear drum brakes should be cleaned and checked for adjustment regularly and only be adjusted if neccesary. you can adjust the rear drums from the inner part of the drum
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Drum brake adjustments should be performed with wheel/tire assembly held on with lug nuts snugged on. The same for adjusting with drums only so that the drum is fully seated on the axle hub. Car was loaned out to a "friend" who drove some miles with a soda can stuck between the console and emergency handbrake handle. She partially crushed the can when releasing the handbrake in the down position but the brake was not fully disengaged. Fortunately no warped drums or damaged components!
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Drum brake adjustments should be performed with wheel/tire assembly held on with lug nuts snugged on. The same for adjusting with drums only so that the drum is fully seated on the axle hub. Car was loaned out to a "friend" who drove some miles with a soda can stuck between the console and emergency handbrake handle. She partially crushed the can when releasing the handbrake in the down position but the brake was not fully disengaged. Fortunately no warped drums or damaged components!
Wow, that's really paying attention.
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The drums are self adjusting, but only self adjust in very small increments. (Only while driving and braking in reverse too)
The proper way is adjust the shoes so that they drag on the drum slightly with the parking brake engaged at 2 to 3 clicks. No drag what so ever when the parking brake is released.
so your telling me that the tire should not make one full rotation without the parking brake engaged? Right now the tire makes one full rotation and stops. Before I adjusted them the tire would spin and spin and spin for about 20 rotations. So there should not be any drag, it should keep spinning and spinning? That does not sound right.
Cause you have to adjust them as they wear out. Not doing so will wear out your front pads very quickly. Front brakes are used 80% and rear drums 20%, that's in stopping power that is. So when not adjusting your rear brakes, the 20% would be more like 15% or 10%. I might of adjusted them too tight. I mean how tight should the parking brake be?
I don't buy your theory.
When the system is designed to self adjust when you back up
When the system is designed to self adjust when you back up
ok I' am a bit confused here. One person tells me its done one way and another person tells me its done another way. Here is what I know from auto mechanics at school. Drums brakes have to be adjusted from time to time, because the pads on them do wear out. Now as far as self adjusting I know for a fact disk brakes are self adjusted due to their construction and design, drums however are not. Can someone please provide some proof of self adjusting drum brakes on a 10th gen Corolla. Backing up does not seam to be the right thing. Why would they have the dial then?
I probably phucked it up by turning the dial. I did not even count how many times I clicked the dial on each one. I just clicked and spun the wheel until it only can spin one revolution. Can someone please explain how many revolution the wheel should spin without the parking brake applied. And how to properly adjust my drum brakes. I don't think backing up is gonna do me any good since I must of adjusted them too tight. Thank you
Last edited by RussianBadBoyLB; 12-02-2009 at 03:16 AM.
You are trying to achieve No drag when parking brake is OFF.
Once again, the star wheel is turned a slight amount by the lever attached to rear shoe when you apply brakes. Once the rear brake shoe moves enough, the lever will skip a notch on the star wheel and spread the adjuster a tiny bit.
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