22
Aug
It also required more fluid in the wheel cylinder to apply the brakes. Place the springs on the shoes with the spring with the straight piece in the middle on the wheel cylinder end.
Adjust the brakes until the wheel makes about one revolution before stopping.
Adjusting rear brake shoes. In this video Ill show you how to adjust your drum brakes using the star adjuster to get just the right amount of drag on your drum brake shoesWatch the En. There shouldnt be any extra drag on the rear wheels beyond the rubbing from the brake shoe adjustment. If there is an increased drag you will need to back off the cable adjuster until the only drag you feel is created during the shoe adjustment.
Lower the vehicle and go for a test drive. Place the floor jack back under the lifting point and raise the car up enough to remove the jack stands. Put a jack under the rear differential and lift the rear axle up enough so BOTH rear tires are off the ground.
Have a helper REPEATEDLY press and release the brake pedal WHILE you spin the rear tire in REVERSE. You should hear and maybe even feel the star wheel adjusting the brake shoes to the correct tension. Do this on the other side.
Have a helper apply slight pressure on the foot brake just enough that it tightens the brake shoes but still allows you to turn the drum. If both rear wheel drums seem to operate with the same tension your brakes should be balanced. If not adjust the star wheels until the brakes are balanced.
Access the drum brake adjustment star wheel. The drum brake adjuster is located under an access cover in the back of the drum brake. Using the screwdriver gently pry out the rubber grommet that protects this access cover.
Adjust the star wheel. Turn the star-shaped adjuster a few times. Remove the drum and inspect the rear brake shoes and drum for damage.
Locate the star wheel adjuster. This serrated wheel shaped piece is between the lower edges of both shoes. As the wheel is turned it expands on contracts the shoes.
Remove the rubber plug in the back of the backing plate behind the star wheel adjuster. The brake adjuster is a threaded rod with a star wheel that unscrews as needed to increase the distance between the brake shoes. Corrosion can cause the threads to rust making it difficult for the brake adjuster to self adjust and you may notice that your brake pedal has to be pressed down farther before the shoes contact the brake drums.
Adjust one shoe then the other. Then press the brake pedal a couple of times and adjust them again. This ensures that everything is centered properly inside the drum.
If you are adjusting the rear wheels youll need to adjust the handbrake after adjusting the brakes. The LOWER adjustment on 39-42 brakes must be done first to center things when you put in new shoes. Dont do upper ones until those are done.
After shoes are centered and adjusted you do not need to use the lowers again unless you think you have poor contact or you change shoes. Major adjustment minor adjustment in Ford manuals. The video is ap.
Keeping the rear brakes adjusted is a safe and effective way to balance the braking system and increase the longevity of your front brakes. Step 1 Remove the hub caps from the rear wheels and break the lug nuts loose with the lug wrench. Spin the wheel by hand as you operate the adjuster.
You will hear the shoes scraping on the drumthis is normal. Give the tire a hard spin every few clicks. Adjust the brakes until the wheel makes about one revolution before stopping.
Adjusting the shoes too far out will lock the drum. Drum Brake Adjusting Spring Kit-Brake Shoe Adjuster Kits RearFront-Left Centric. Drum Brake Self Adjuster Repair Kit-Brake Shoe Adjuster Kits Rear Right Centric.
Drum Brake Hardware Kit Rear ACDelco Pro Brakes 18K954. 1968 previous price 1968. When the gap gets big enough the adjusting lever rocks enough to advance the adjuster gear by one tooth.
The adjuster has threads on it like a bolt so that it unscrews a little bit when it turns lengthening to fill in the gap. When the brake shoes wear a little more the adjuster can advance again so it always keeps the shoes close to the drum. Place the springs on the shoes with the spring with the straight piece in the middle on the wheel cylinder end.
Hold the shoes apart so that the springs dont fall off and set the square hole end over the brake lever and onto the cylinder. Carefully wrestle the other ends into place. If the Brake Assembly does not float on the Backing Plate which may cause uneven Brake Shoe wear some grease on the Brake Shoe to Backing Plate contact points may be in order.
Due to more brake friction surface area with Drum Brakes when compared with Front Discs rear brake shoes rarely require replacement. Just an inspection and adjustment. Brake shoe adjustment is another common cause of rear brake lockup.
It is generally accepted that rear brakes should be adjusted until a slight drag is felt. This procedure only applies to a small handful of older vehicles. The methods listed by the vehicles manufacturers vary widely and sometimes incorporate some rather odd steps.
Adjusting the brakes would move the shoes closer the drum friction surface and reduce the travel of the wheel cylinder piston. It also required more fluid in the wheel cylinder to apply the brakes. Adjustments were made by manually turning the notched wheel on the adjuster with a brake spoon for the self-energizing type.