Rear brakes dragging? - ZDriver.com


300ZX (Z31) Brakes, Wheels, Suspension and Chassis Discussions related to performance suspension, wheels, brakes and chassis.

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 10-08-2015, 05:26 PM   #1
Registered User
Thread Starter
 
savan12986's Avatar
 
Join Date: Sep 2015
Location: Michigan
Posts: 9
Rear brakes dragging?

Hello, I've recently purchased an 85 z31 NA, and the rear brakes drag.

Whats got me confused is that the e-brake cables weren't connected, and when I did connect them the dragging has been reduced but not completely removed.

Does the tension from the ebrake cable "balance" out the caliper somehow? Is it an issue of fine tuning tension on the cable or is it bad calipers?

The calipers and pads appear to be new, so I doubt its rust interfering with the piston.

Any advice is greatly appreciated.
savan12986 is offline   Reply With Quote
Old 10-08-2015, 10:40 PM   #2
Grumpy & Helpful
 
Join Date: Sep 2006
Location: Mill Creek WA
Posts: 1,391
first get the fsm from xenonzcar. Next STep READ it. take off the calipers and make sure everything is free, clean and lubricated. silicon grease. turn the pistons in (pads off). you can get a tool for cheap or try the needle nose plier trick which is frustrating and will cause you to say bad words. Be sure all the cables are free and easy in their sheaths. should only be finger tight to pull them in the sheath or freer is better. Reassemble and work the brakes they self adjust when everything is free moving. Redo the cables for the Ebrake. Probably worked on by a moron who didn't know what he/she was doing. Bleed the system. Last Word RTFM. or spend the money at Les Schwab to make it right. probably a new Master cylinder would be a good idea. and while you are there put in a new master and slave for the clutch hydraulics. when that goes out usually about OH Dark Thirty you don't go anywhere else.
and because i'm in a good mood do this :Get your battery load tested. Be sure you have clean, tight corrosion free terminals on both ends of your battery cables. Be sure the ground (negative) cable goes to a bolt into the frame before going to the starter. grounding through the starter is not a reliable connection. Z's don't like low voltage. causes the electronics to act funny. it is possible to have enough amps to crank but not enough voltage to run the electronics. If you have one size fit all cheapo clamp on terminals they are a problem waiting to happen. Usually on a rainy night around Oh Dark Thirty.

Clean the connectors for the maf or afm, ecu and tps. Deoxit by CAIG is probably the best connector cleaner on the market. spray with CorrosionX after cleaning and before putting together this will help prevent any further corrosion. DON'T USE DIELECTRIC GREASE.

Replace outer tie rod ends, and ball joints. replace the bushings with poly (don't forget to lube them as directed unless you like squeaky things). New shocks. Get new boots for power steering. all those things will make you think you are driving a different car. doing them piece meal is a waste you won't see a great improvement until you do the complete job. You need to get the car realigned after messing with the front. Have your tires in good shape and rebalance. Rear bushings nice too but more work and you won't notice as great an improvement. Rear shocks also because if the fronts are gone so are the rears. if car squats when you jump on the gas the rears are gone.

Last edited by rogerz; 10-08-2015 at 10:43 PM.
rogerz is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
frozen rear brakes? Kustomup 240Z, 260Z, 280Z Brakes, Wheels, Suspension and Chassis 9 09-26-2005 07:12 AM
Rear Brakes DoTheDrew888 280ZX Brakes, Wheels, Suspension and Chassis 11 05-24-2005 09:53 PM
1/8 mile dragging emo236 300ZX (Z32) Forums 42 01-29-2004 02:19 AM
what do I need for rear disc brakes RCZ 240Z, 260Z, 280Z (S30) Forums 7 10-03-2002 09:24 AM
Rear Brakes Rubbing AlansZ 240Z, 260Z, 280Z (S30) Forums 6 03-27-2002 11:28 PM


Bookmarks

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -7. The time now is 08:27 AM.


Copyright 2000 - 2014 ZDRIVER.COM All Rights Reserved.