Automotive Forums .com - the leading automotive community online! Automotive Forums .com - the leading automotive community online!
Automotive Forums .com - the leading automotive community online! 
-
Latest | 0 Rplys
Go Back   Automotive Forums .com Car Chat > Engineering/Technical
Engineering/Technical Ask technical questions about cars. Do you know how a car engine works?
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
 
Thread Tools Search this Thread
Old 06-10-2009, 08:34 AM   #1
HeWhoKillz
AF Regular
 
Join Date: Apr 2005
Location: columbus, Indiana
Posts: 491
Thanks: 0
Thanked 0 Times in 0 Posts
adjusting drum brakes

I just changed my drum brakes and they work fine except the e brake doesn't work correctly. It used to "click" when you pulled it on about five or six clicks and was barely half way as far as it could go, now its all the way back and doesn't hold the car still. I'm guessing I don't have the brakes adjusted. What are methods of adjusting them?
HeWhoKillz is offline   Reply With Quote
Old 06-10-2009, 08:54 AM   #2
MagicRat
Nothing scares me anymore
 
MagicRat's Avatar
 
Join Date: Dec 2003
Location: City of Light
Posts: 10,697
Thanks: 12
Thanked 77 Times in 72 Posts
Re: adjusting drum brakes

Poorly adjusted brakes don't just affect the parking brake, they also impede the effectiveness of the regular brakes.

To adjust, you turn the star-wheel adjuster (the things that hold the shoes apart at the bottom) This forces the shoes apart.

Usually, I raise one wheel of the car. I can access the adjuster through a hole at the bottom of the backing plate. Sometimes you have to remove a rubber plug first. Then you can rotate the adjuster with a screwdriver. The adjuster level should make a ratchet -type clicking sound as you turn it. It should only turn one way. If you are not sure which way to turn, remove the drum and take a look at the threads. Turn the adjuster and watch to make sure it is pushing the shoes apart.

Occasionally, spin the wheel by hand and listen for a scraping noise as the shoes contact the drum. When you hear this noise, get in the car and apply and release the regular brake. This will center the shoes again. Then get under the car again and spin the wheel. Has the scraping noise gone away?

If yes, turn the adjuster some more and repeat the process. When you reach the point where the scraping noise will not go away, back off the adjuster just a turn or 2 and the brakes are adjusted. You may need to insert a second screwdriver to push the adjuster lever back a bit to back off the adjuster.

Finally, you are sure the brakes are adjusted properly..... the adjusters are the correct way around and on the correct side of the car; the e brake is hooked up right and the adjuster cables are working, correct?
MagicRat is offline   Reply With Quote
Old 06-10-2009, 01:41 PM   #3
shorod
SHO Off
 
shorod's Avatar
 
Join Date: Jun 2004
Location: Cedar Rapids, Iowa
Posts: 10,609
Thanks: 65
Thanked 274 Times in 267 Posts
Re: adjusting drum brakes

And on some cars the self adjuster will be located just below the wheel cylinder, so if you don't find the rubber plug/access hole below the axle, check above it as well. I seem to recall the rule of thumb being that you will always move the brake adjuster spoon from top to bottom when adjusting via the access hole, regardless of the side of the car. While it is possible to release the self adjuster arm from the access hole with a second screwdriver, I always tried to be very careful not to adjust too far because it's not fun to back an adjuster off. At least not if it's assembled correctly.

You'll want to get both sides pretty close so that you don't experience a pull when braking aggressively. If both sides are adjusted evenly, and the rest of the self adjuster hardware is assembled correctly, you can fine tune them by driving slowly in reverse and stabbing the brakes.

-Rod
shorod is offline   Reply With Quote
Old 06-10-2009, 05:41 PM   #4
Mavrick14
AF Newbie
 
Join Date: May 2009
Location: Ontario
Posts: 52
Thanks: 0
Thanked 0 Times in 0 Posts
Re: adjusting drum brakes

Adjust the drums out until they drag slightly. Then your good to go.
Mavrick14 is offline   Reply With Quote
 
Reply

POST REPLY TO THIS THREAD


Bookmarks
Go Back   Automotive Forums .com Car Chat > Engineering/Technical

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 06:41 PM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts