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#1 |
Registered Member
Join Date: Apr 2001
Location: Staging lane
Posts: 4,337
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![]() Ok my car pretty much only sees track time.
I installed new rotors and brake pads and everything seemed cool. I have bled the lines so air isnt the problem. I made a pass at the track after installing the new stuff and then noticed I couldnt push my car in the staging lanes. After I got it home and jacked up the front I found the problem. My brakes are not releasing, the pads are dragging on the front rotors. This cant be good for performance and I need to be able to push my car in the staging lane. I am thinking that the brake booster is bad. Any opinions?
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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer |
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#2 |
Registered Member
Join Date: Jun 2000
Location: ventura,CA
Posts: 438
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![]() Did you sand and lube up the caliper bolts really well? Or the pistom could be getting stuck.
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92 GT, 4:10 gears, centerforce clutch, 6# powerdyne blower, bbk h-pipe, flowmasters 65 Mustang 13.50 107mph 3000' ALt. 65 Falcon Straight Axle Drag Car |
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#3 |
Moderator
Join Date: Sep 1998
Location: Grand Rapids, Michigan, USA
Posts: 1,001
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![]() Agreed. Sounds like piston damage ocurred during brake pad installation.
However, unless you had the unfortunate luck of messing up BOTH left and right pistons, it's going to take some troubleshooting to determine the problem. First, I'd try detaching the vacuum check valve from the power brake booster, and see if the pedal rises or the front brakes release. If not, remove the calipers by their slide pins and see if the pistons are seized. You know where to go from here. Be aware that there are a LOT of shady-engineered/machined parts out there. I've had the misfortune of having brake pads that were too thick with rotors that were too thick as well. The results were similar to your experience, but I couldn't even fit the calipers to their mounts because the components were so badly made! ![]() I'd suggest using Performance Friction carbon metallic pads if it's determined that the calipers are all right and there aren't any other factors causing lockup. They're a little bit thinner than most semi-metallic pads when new.
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Capri306, Moderator The Mustang Works Online 1979 Mercury Capri 1987 5.0L Mustang LX Notchback 1993 5.8L Eddie Bauer Bronco ![]() |
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#4 |
Registered Member
Join Date: Apr 2004
Location: windsor, Canada
Posts: 7
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![]() I've seen alot of flex lines cause this problem, they collapse from the inside and lock up the brakes.
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1-5/8 mac unequal legnths cold air induction march pulleys 3.73 gear b&m ripper 2 1/2 mac cat back exhaust p245/50r16 BF comp TA's in the process of installing new H,C,I combo |
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#5 | |
Domestic Rice really sucks!
Join Date: Apr 2002
Location: KY
Posts: 973
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#6 |
Registered Member
Join Date: Feb 2004
Location: Skiatook, Oklahoma
Posts: 193
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![]() I agree about the brake lines. Did you let the cailpers hang down on the lines when you were working on it. Could have broken the lines down internally as the last to post said. You could have a cup hanging or sticking in the master cylinder also, not letting the fluid return.
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