Can't get 4 wheel discs to work properly

SeventyNova
23rd-September-2008, 12:33 AM
I just finished my 9" rear conversion and rear disc upgrade. I can't seem to get the rear calipers to clamp on the rotor though. It is the summit rear disc kit which is made by ssb. I have the old disc drum manual master cylinder and disc drum distribution block. i have an adjustable prop valve but its not installed yet.

Should I change my master cylinder and/or distibution block to disc/disc? I have bled the brakes a few times and can't get any more air out of them. Any suggestions?

67pete
23rd-September-2008, 07:40 AM
Are the bleeder valves on the high side of the caliper?

Probably should get a disk/disk master cylinder as the disk/drum does not exert enough pressure on the rear brakes(lock up).....

Luke Shaheen
23rd-September-2008, 03:24 PM
Disc brakes require a lot more fluid/pressure. As is very little pressure is sent to the back tires.

I'd recommend the proper distribution block

SeventyNova
23rd-September-2008, 11:13 PM
Does anyone know where I can get a Manual master cylinder for a disc/disc setup? not sure if this was stock on any cars.

The distribution block should be easier to find.

Ryan V64SS
23rd-September-2008, 11:34 PM
If you are not using a booster you will need a 1" or smaller bore MC with no residual press valves. The drum MC will have a residual press valve and it drags the brakes when you install a disc setup. Also get rid of the factory dist block and if needed install an adjustable prop valve in the rear line.

lisandon95386
24th-September-2008, 12:00 AM
get a 68 vette disk,disk master,worked good on my car
don

The Big Al
24th-September-2008, 12:33 AM
The Mater cylinder you need

Part Number United Brake (NAPA) New #36367

Re-man unit TS 10-1371

You can get this at NAPA, or have another parts store cross these number to get what your need.

Application is for a 1969 Corvette with manual brakes!

Al

novaBRO
24th-September-2008, 02:53 AM
are the calipers setup to run parking brake cables? and if so are they hooked up?

67 church
24th-September-2008, 10:03 AM
The Mater cylinder you need

Part Number United Brake (NAPA) New #36367

Re-man unit TS 10-1371

You can get this at NAPA, or have another parts store cross these number to get what your need.

Application is for a 1969 Corvette with manual brakes!

Al

This is what I have on mine and my dad's car with Aerospace components brakes.

fasteddie
24th-September-2008, 10:39 AM
The Mater cylinder you need

Part Number United Brake (NAPA) New #36367

Re-man unit TS 10-1371

You can get this at NAPA, or have another parts store cross these number to get what your need.

Application is for a 1969 Corvette with manual brakes!

Al

Would this master cylinder work for 4 wheel power disk? If not, do you have a part number for one?

The Big Al
24th-September-2008, 11:05 AM
Would this master cylinder work for 4 wheel power disk? If not, do you have a part number for one?

No this one is for manual only.

Power brake rem will be 10-1423

New unit # United Brake 47-39018
Bendix # 39018


Same application 69 Corvette

fasteddie
24th-September-2008, 01:33 PM
No this one is for manual only.

Power brake rem will be 10-1423

New unit # United Brake 47-39018
Bendix # 39018


Same application 69 Corvette

Thank's Al!! You allways seem to come through on the parts numbers!:yes:

SeventyNova
24th-September-2008, 10:01 PM
thanks for the info, will order master cylinder.

The rear calipers have a built in e brake and they are not hooked up. Will this cause problems?

The Big Al
24th-September-2008, 10:17 PM
thanks for the info, will order master cylinder.

The rear calipers have a built in e brake and they are not hooked up. Will this cause problems?


Yes!

I do not know why but yes!