glowing rotors

[Slow Ride]

I have a problem with my damn S-10 Blazer. The brakes are not confidence inspiring to say the least, yet the front rotors are hot as hell after a longer drive. I came home from the drag strip where they had a hard time slowing the car down from only 110 to hit the return road and then on the drive home the pedal was high and hard. I only touched the brake a few times the whole way home, but they were glowing a dull red after the drive. What is going on here?

The setup is mostly stock. Stock manual master cylinder, with stock pushrod and stock pedal. The prop valve is a new factory replacement. The front rotors are stock with SSBC Force 10 calipers. The rears are 11x2 ford drums. I have Earls stainless brake hoses as well. I also have a Wilwood adjustable prop valve in the rear line.

Hear is how I have it plumbed...
http://i56.photobucket.com/albums/g163/slowride454/DSCN0327.jpg
http://i56.photobucket.com/albums/g163/slowride454/DSCN0321.jpg
do I have the ports mixed up? Is the residual valve on the front brakes possibly? That would definately cause a problem.

[andrewb70]

From the looks of it, you have the system plumbed wrong. I see the line-lock solinoid, so I would guess thats the front line. I see an adjustable proportioning valve in the other line. You need to get ahold of a factory service manual and see how its plumbed. I think the front port on the MC needs to go to the rear brakes and the rear port goes to the front brakes.

Andrew

[6'9"Witha69]

From the looks of it, you have the system plumbed wrong. I see the line-lock solinoid, so I would guess thats the front line. I see an adjustable proportioning valve in the other line. You need to get ahold of a factory service manual and see how its plumbed. I think the front port on the MC needs to go to the rear brakes and the rear port goes to the front brakes.

AndrewI think the same as well.

[Slow Ride]

Looks like double dumb-ass on me. I have the ports mixed up on the output side of the combination valve. I wonder how much ET and mph I lost with the front brakes being hung up? Also might contribute to the damn blazer overheating. Time to re-plumb and then R&R the wheel bearings.

[Slow Ride]

Well the plumbing problems weren't the only issue. I am going to check pushrod endplay. I might even try a set of stock calipers. Could underhood heat be contributing to the problem. I just seems as though the problem gets worse when the engine gets hot (over 200). Or they are unrelated and just both overheat within a mile or so of driving.

More updates when I get home from work

[Slow Ride]

I checked the pushrod endplay and it is fine. I took the wheels off and you can spin the rotors even after pushing the brake pedal and letting it return, so no residual pressure. I redid the brake lines from the tee to the brake hoses, going under the frame, away from the headers. I started to make up a heat shield, but ran out of daylight.

You should see the red plastic plugs in my wheels. They are all shriveled up and melted to the wheels.

[Slow Ride]

Hey guys, I'm not completely nuts!!!

I called up SSBC today for technical support and they said to send the calipers back to Summit, because they don't even offer them anymore due to the same problems I've been having.

I'm going to get some stokers so I can drive it, and send those damn things back.

[andrewb70]

Sounds like you had several issues stacked up. Let us know how it all works out.

Andrew