ZR-1 Net Registry Forums  

Go Back   ZR-1 Net Registry Forums > C4 ZR-1 > C4 ZR-1 Technical Postings

Reply
 
Thread Tools Display Modes
Old 06-28-2017   #1
dnobull
 
Join Date: Feb 2017
Location: Raymore MO
Posts: 43
Default Brakes Dragging on 1993 ZR-1

After noticing that my front brakes were dragging slightly I had the pads replaced. This made the mater worse.

What other things should I replace to solve this problem.

Should I replace the calipers or have someone rebuild them?
Should I replace the brake lines?

Thanks,

Dave Noble
dnobull@gmail.com
dnobull is offline   Reply With Quote
Old 06-28-2017   #2
conesare2seconds
 
Join Date: Jul 2016
Location: Greater St. Louis
Posts: 490
Default Re: Brakes Dragging on 1993 ZR-1

Try lubricating the caliper slide pins. I use high-temp grease.
conesare2seconds is offline   Reply With Quote
Old 06-28-2017   #3
dnobull
 
Join Date: Feb 2017
Location: Raymore MO
Posts: 43
Default Re: Brakes Dragging on 1993 ZR-1

Thank you for your reply, I did have that done when the pads were replaced. I am wondering if the Calipers need to be rebuilt or if the hoses could be breaking down internally. The problem seems to get worse as the car is driven and the rotors heat up.
dnobull is offline   Reply With Quote
Old 06-28-2017   #4
G8nightman
 
G8nightman's Avatar
 
Join Date: Dec 2007
Location: NYC
Posts: 1,189
Default Re: Brakes Dragging on 1993 ZR-1

Might be mater cylinder when was the last time you flushed your brake fluid?


Sent from my iPhone using ZR-1 Net Registry
__________________
90 Chevy ZR1 LPE #2315 'SOLD'
90 Chevy ZR1 LPE #2774 'SOLD'
91 Chevy ZR1 Callaway aerobody
91 Chevy ZR1 #1512
91 Chevy ZR1 #951
95 Chevy ZR1 #338 'SOLD'
91 BMW 850i
94 BMW 850csi
95 BMW 850csi
94 Lotus Esprit S4
07 Benz CLS550
06 BMW M5 "SOLD"
G8nightman is offline   Reply With Quote
Old 06-28-2017   #5
dnobull
 
Join Date: Feb 2017
Location: Raymore MO
Posts: 43
Default Re: Brakes Dragging on 1993 ZR-1

Not yet but that will be next Thank you for your reply. I am also thinking to rebuild the calipers but need a source for the parts.
dnobull is offline   Reply With Quote
Old 06-29-2017   #6
Roadster
 
Roadster's Avatar
 
Join Date: Mar 2014
Location: Warrington PA
Posts: 1,914
Default Re: Brakes Dragging on 1993 ZR-1

I would check and maybe replace your brake lines. They can look good from the outside, but be bad on the inside causing the fluid not to flow properly or not even flow at all. A way to check your hoses is to disconnect them and blow air through them. That will give you a good indication of the condition of them from the inside. If any are suspect, now would be a good time to replace all 4 hoses. JMO Good luck....
__________________
Tom

1994 ZR-1 #009 "captured test fleet car"
1974 LS4 454 Vert
1974 L-82 355 Vert.
1982 L83 CFI...now a retired "dd"....Sold

WAZOO Member

Last edited by Roadster; 06-29-2017 at 02:11 AM.
Roadster is offline   Reply With Quote
Old 06-29-2017   #7
S.hafsmo
 
S.hafsmo's Avatar
 
Join Date: Nov 2016
Location: Norway
Posts: 397
Default Re: Brakes Dragging on 1993 ZR-1

Or just open the bleed screw and squeeze the brakes. My money would be on sticking caliper pistons.
__________________
- '90 ZR-1
S.hafsmo is offline   Reply With Quote
Old 06-29-2017   #8
USAFPILOT
 
USAFPILOT's Avatar
 
Join Date: Aug 2007
Location: Spring TX
Posts: 1,348
Default Re: Brakes Dragging on 1993 ZR-1

I had to flush the brake system and get rebuilt calipers, now its good; but I had the same problem. I think it was the calipers.
__________________
1994 #293 ZR-1 Stainless Works Long Tube Headers, B&B catback w/ X-Pipe, 18" Shelby Series One Wheels, SLP CAI.
USAFPILOT is offline   Reply With Quote
Old 06-29-2017   #9
dnobull
 
Join Date: Feb 2017
Location: Raymore MO
Posts: 43
Default Re: Brakes Dragging on 1993 ZR-1

Thanks for your reply, I think I will replace the Calipers or have them re built and do the Brake lines at the same time,

Dave Noble 1993 #180
dnobull is offline   Reply With Quote
Old 06-29-2017   #10
dnobull
 
Join Date: Feb 2017
Location: Raymore MO
Posts: 43
Default Re: Brakes Dragging on 1993 ZR-1

Thanks for your reply that makes sense to me and will be the next thing. I might replace the brake lines at the same time
dnobull is offline   Reply With Quote
Reply

Tags
brake problems, brake solutions, brakes, dragging


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

Forum Jump


All times are GMT -4. The time now is 05:54 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright ZR-1 Net Registry 2020