76 Break issue
Thread Starter
2nd Gear
Joined: Oct 2020
Posts: 2
Likes: 1
From: Memphis TN
76 Brake issue
Please give me some guidance! I have a 76 I am working on that has some type of brake issue. When I hit the brakes no matter what speed it wants to turn to the left if I am going forward, and right if I am going backwards. When I hit the brakes leaving the driveway the left tire will lock up. After a 10-15 min drive, the cast wheels are hot to the touch. While holding the break you can hear a whine.
I’m trying to find a starting point to work on. I think it would be the caliper but I am unsure.
I’m trying to find a starting point to work on. I think it would be the caliper but I am unsure.
Last edited by Kale Czerwonka; Oct 19, 2020 at 09:09 AM.
Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,809
From: Cool Northern Michigan
Hard pull to left usually means the right side is doing nothing.
I would suspect both front caliper hoses. One side is not allowing fluid though to apply brakes. One is not allowing fluid to return (lock-up).
They rot and collapse internally.
I would suspect both front caliper hoses. One side is not allowing fluid though to apply brakes. One is not allowing fluid to return (lock-up).
They rot and collapse internally.
Last edited by HeadsU.P.; Oct 19, 2020 at 08:26 AM.
Le Mans Master
Joined: Jun 2019
Posts: 7,643
Likes: 2,464
From: Indiana
Holy cow..you are sitting still inpark and push brakes and the wheel moves like that?
strongly suggest inspection and or have someone take pics or vids while doing that...that is weird maybe something broke..suspension? A arm? Ball joint? Bearing?
strongly suggest inspection and or have someone take pics or vids while doing that...that is weird maybe something broke..suspension? A arm? Ball joint? Bearing?
Last edited by interpon; Oct 18, 2020 at 09:41 PM.
Thread Starter
2nd Gear
Joined: Oct 2020
Posts: 2
Likes: 1
From: Memphis TN
That was just rolling back and forward in the driveway not sitting still, but close to it
Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,809
From: Cool Northern Michigan
Jack up the problem side and try to rotate the tire. Then remove the tire and inspect the pad to rotor gap. Or lack of.
Its very possible and very common to have a caliper that refuses to "let-go". The pistons can not return into their bores. But why?
Pump up the brakes. Loosen the bleeder screw. If fluid gushes out, the rubber brake line is the culprit. Replace.
If little fluid or no fluid comes out, its the caliper pistons. Buy rebuilt units.
Tip: soak the bleeder screw overnite with PB Blaster. Soak the caliper mount bolts too, just in case.
Use a brake bleeder wrench or six point socket on the bleeder. Go slow.
If you have to buy hoses, the front ones get a copper washer with it.
Its very possible and very common to have a caliper that refuses to "let-go". The pistons can not return into their bores. But why?
Pump up the brakes. Loosen the bleeder screw. If fluid gushes out, the rubber brake line is the culprit. Replace.
If little fluid or no fluid comes out, its the caliper pistons. Buy rebuilt units.
Tip: soak the bleeder screw overnite with PB Blaster. Soak the caliper mount bolts too, just in case.
Use a brake bleeder wrench or six point socket on the bleeder. Go slow.
If you have to buy hoses, the front ones get a copper washer with it.
