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New rear brake shoes not working properly

I put new shoes on the rear of a 98 z71 k1500. I had to loosen the adjustment some to get the drums back on. I thought they would automatically tighten up and adjust themselves when backing the truck up, am I wrong for assuming this?
I also thought there was a adjustment hole on the back side but I don't see one. All I see is a 1" oblong rubber gromment on each side and a small 1/4" gromment in the middle. Neither hole has the adjustment wheel behind it that I can tell. What am I supposed to do to adjust the rear brakes?

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You are correct,the brakes are designed to self adjust when you back up, but this is After they have initially been adjusted after a brake job. You say you had to loosen the adjustment some to get the drums back on, this is normal, as the new brake shoes are thicker than the old worn ones. You are not wrong when you thought backing up the truck (and then applying the brakes) will adjust them. What is wrong with this though, is that you would probably have to back up and hit the brakes for a couple of hours if they are in need of quite a bit of adjustment, and that's if the adjusters are working perfectly. You really need to do an initial adjustment while the truck is still jacked up. The rubber grommets should be removed so you can adjust the brakes. It may be difficult to see the adjusters, but that's how you get to them. Do you have a brake adjusting tool? The slight bend in it makes it perfect for getting in the slot. Did you make sure the adjusting wheel is not seized up(or difficult to turn) while you had it apart? To adjust them just right, you can have the wheels on, truck jacked up, adjust and slowly spin the wheel. When you feel a very slight drag, it's adjusted properly. If you over adjust, you need to put a very thin screwdriver through the backing plate and hold the small metal piece that touches the adjusting wheel out and away from the wheel so you can back off on the adjustment. (this small plate is there to prevent the adjuster from loosening by only allowing it to turn in one direction, pushing the plate out of the way allows you to go in the opposite direction, to loosen the brake adjustment).

Posted on Aug 24, 2009

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The star wheel adjuster should be behind that oblong hole -- pull out the rubber plug. You probably can't see the star wheel because it's all the way to one side.


Sounds like you know how to adjust them once you find the star wheel.

The brakes should adjust themselves -- some adjust when backing up, others when you use emergency brake. It may take a while...

Charlie

Posted on Aug 23, 2009

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Rear brakes


Removal
1.Remove rear wheel and tire assembly from vehicle.

2.Remove rear brake drums from hub and bearing assemblies after loosening the two brake drum screws.
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3.Be sure that the parking brake pedal is in the release(most upward) position.

4.Completely loosen square nut of the rear parking brake cable. Then create slack in the rear parking brake cables.
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5.Remove adjuster spring from adjust lever and brake shoe.
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6.Remove adjust lever and turn the adjusting wheel of adjuster assembly to the direction of the arrow as shown.
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7.Remove the strut spring and the lower retracting spring from the brake shoe.
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8.Remove the upper return spring from the brake shoe.
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9.Remove brake back plate hold down spring and pin from the leading brake shoe assembly.

10.Remove the leading brake shoe. Then remove the adjuster assembly, strut and anchor spring from the trailing brake shoe.
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11.Remove the trailing brake shoe from the brake back plate after removing hold down spring and pin.
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12.Remove the trailing brake shoe from the rear parking cable.
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13.Remove parking pivot lever from the leading brake shoe.
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Replacement
1.Lubricate the eight shoe contact areas on the back plate and anchor.
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2.Install the trailing brake shoe to the rear parking cable.

3.Install trailing brake shoe on brake back plate and install the trailing brake shoe hold down spring and pin on the brake shoe.

4.Tighten the square nut of rear parking cable.

5.Install the anchor spring then install adjuster assembly, and strut.

6.Install leading brake shoe on brake back plate.
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7.Install the brake shoe upper return spring, strut spring and the lower retracting spring to the brake shoe.

8.Properly rotate the adjusting wheel of adjuster assembly to the direction of the arrow in as shown.
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9.Install the adjuster spring on the adjust lever and leading brake shoe assembly.

10.Install the leading brake shoe hold down spring and pin on the brake shoe.
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11.Adjust brake shoes assemblies so as not to interfere with brake drum installation.

12.Install the rear brake drums on the hubs.

13.Check and adjust whether the pedal stroke in the specification.(Refer to section BR Gr./On-vehicle service/Pedal stroke of parking brake)

14.Install wheel and tire.

15.Push the parking brake pedal to the floor once and release pedal. This will automatically remove the slack from and correctly adjust the parking brake cables.

16.Test the vehiche on the road. The adjust will continue the brake adjustment during the road test of vehicle.

Inspection
1.Inspect the disassembled parts for wear, rust or damage.

2.Measure the thickness of brake shoe lining.
Standard : 0.17 in (4.5 mm)
Minimum : 0.04 in (1 mm)

3.If the shoe lining is less than minimum or shows signs of uneven wear, replace new one.
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4.Measure the inside diameter of the brake drum.
Standard : 10 in (254 mm)
Maximum : 10.07 in (256 mm)
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5.If the inside diameter of the brake drum is more than maximum or shows signs of uneven wear, replace new one.

6.Inspect the lining and drum for proper contact. If the contact condition is improper, repair it with a grinder or replace the brake shoe assembly.
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Aug 14, 2013 | 2002 Kia Sedona

1 Answer

I have a 2005 1500 Z71 4x4 and I can't get the passanger rear brake drum off...Is there something special about getting the drum to come off? It started leaking fluid this morning and thus I have no...


the fluid is brake fluid frond the wheel cylinder...the reason why u cant get the drum off is either a rust lip on the drum or the rear brake shoes have ground into the brake drum...u need to adjust the self adjusting star wheel inward to loosen the rear shoes allowing the drum to be removed...on the back side of the drum is what is called a backing plate there will be a oval hole with a rubber plug in it remove it an use a brake spoon to de adjust the rear shoes by turning the brake spoon up ..if u dont have the oval hole u will need to cut it out of the backing plate there may be 2 oval stamps in the backing plate, cut out the one that is on the right when u r looking at the backing plate

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1 Answer

Why do my rear brakes over tighten on me? i just put new drums and shoes in and new spring kit,


this happens if you do not use genuine parts
the camber on the shoe inclined to hit drum in spots
makesure you back off adjuster to accomadate new shoes goodluck

Jan 31, 2011 | 1998 Chevrolet K1500

1 Answer

Ok, my 2002 Dodge Neon is having brake problems we replaced the rear master cylinders and brake bad. But, the rear right drums catches the brakes when you free spin the drum with your hand at one point. We...


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Dec 18, 2010 | 2002 Dodge Neon

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How to remove brake rotors on a 1996 ford explorer


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To install:
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  • Install the rear parking brake shoe with the inboard return spring.
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  • Install the brake shoe adjuster spring.
  • Install the outboard return spring.
  • Adjust the parking brake shoes and install the rotor, caliper and wheel.
  • Lower the vehicle and tighten the wheel lug nuts to 100 ft. lbs. (135 Nm).
ADJUSTMENT
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  • Remove the rear disc brake rotor.
  • Using Brake Adjustment Gauge D81L-1103-A or equivalent, measure the inside diameter of the drum portion of the rear disc brake rotor.
  • Subtract 0.020 in. (0.508mm) from the first measurement, adjust the brake shoes to that size
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  • Install the rear disc brake rotor.
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2 Answers

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1 Answer

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