17
Nov
Replace the brake shoe and drums of the other rear wheel. Once the final adjustment has been made put the wheel back on and tighten the lug nuts.
In some cases the drums will wear out sooner due to worn out internal components that put more strain on the drum.
When to change brake drums. Replace the brake drum if any of the following conditions are found. One or more heat check that extend completely across the brake surface. Heat check cracks that are 006 inches wide andor 012 inches deep or greater.
There are two basic ways to tell when drum brakes are not working effectively and need either to be repaired or replaced. The first is by listening. As brake shoes wear down they start to squeal each time you apply the brakes.
This may either indicate the need to resurface the interior of the drums or replace the shoes. In some vehicles rear drum brakes can last for up to 150000 miles although there are many factors that can cause brakes to wear out sooner. When do drum brakes need to be replaced.
Car manufacturers dont specify intervals for replacement but advise having the brakes inspected regularly and replace if needed. A brake drum with heat cracks gouges severe hot spots or that exceeds the specification limit should be discarded and replaced with a new drum. If you are within spec these drums can be machined or turned at a machine shop.
You dont need to necessarily change out the drums but there are a couple of caveats to this as an answer. If the drum is in good shape and meets minimum thickness you could just put the old ones back on there. They will not work as well as if you did one of the following two routes.
Youll still need to bust the glaze on the wear surface of the drum using some sand paper or something similar. The drums are only used when the brakes of a car are applied. The brake drums on your car are built to last for about 200000 miles.
In some cases the drums will wear out sooner due to worn out internal components that put more strain on the drum. As your brake drums begin to wear down they will actually become smaller. As with all brake related car components it is better to replace brake drums before they fail.
You will know your drums need replacing if you are noticing squeaking or grinding when you apply your brakes. The specific procedure will vary from one vehicle to the next but the process will be similar. Adjust the brakes through the drum or through the backing plate till a slight drag on the brake drum is felt.
Check brake adjustment and readjust as needed to have a slight drag on the drum. Do not over tighten the brakes or they could lock up. Remove the jack stand.
Torque the lug nuts and reinstall the hub cap. If they were to break after a hammer stike then good that would ltell you you needed new brake drums because the were to thinly walled from wear and you will be safer for it. More Comments Post Comment.
Upon inspecting the drum a crack extending through the entire wall is found. This condition is caused by excessive heating and cooling of the brake drum during operation. If this condition is found the drum MUSTbe replaced immediately.
Most of the reasons to replace a brake drum have to do with the condition of that drum surface. Each time the brakes are applied they create friction and heat and wear the drum a little bit. Over time a brake drum can become out of round or it can wear to an excessively large diameter.
Rear brake shoes and brake drums wear very slowly as compared to disc brakes but if a brake shoe wears down to the metal or if an emergency brake is left applied a brake drum can be easily damaged. How to Replace Drum Brakes. When this method is used alternate tightening between the bolts so that the dramas pulled off without working this is a brake drum off of a vehicle to make it easier for you to see the brake adjusting lever may need to be backed off so that the brake shoes will retract allowing the brake drum to be removed check.
Usually with drum brakes we can machine them more frequently than with brake rotors they tend to last longer theres often less at stake with drum brakes because most cars use drum brakes on the rear unless its a truck where theres a lot of weight on the back. The following article details the process I went through to change the rear brake shoes and drums on a 2004 Toyota Corolla. This should be similar for the Gen 9 Corollas 2003 2005 2006 2007 and 2008.
If your front brakes are bad check out this post on how to change the front brake pads on a Toyota Corolla. Replace the brake shoe and drums of the other rear wheel. Follow the previous steps to replace the brake drum on the other rear wheel.
Once the final adjustment has been made put the wheel back on and tighten the lug nuts. Pump the brakes using your brake pedal to redistribute hydraulic pressure into the system.