Aug 9th, 00, 07:22 PM
I am about to get some disks, calipers, spindles, backing plates from a cutlass. You guys have convinced me into staying with manual brakes. Right now in my 69 I have manual drums all the way around.
The questions are:
Can I use my same master cylinder? How do I know what size I have now? Or do I have to get a new 1" bore specific master.
Can I used my same p valve? or take the one off the powered disk car?
Aug 9th, 00, 07:26 PM
You will need a different M/C. And the proportioning valve of the donor car.
Hope this help. sean
Aug 10th, 00, 03:45 AM
SAyers69 is right. You will need a disc/drum M/C, which will not have a residual pressure valve on the front lines. And you do want a 1" bore to give higher pressure (to compensate for the lack of a booster).
You also need a combo valve. What you have now for a 4-wheel drum system is not a proportioning valve, it is simply a distribution valve.
Check out these useful pages from master power brakes: http://www.mpbrakes.com/what's2.htm http://www.mpbrakes.com/mpfaqmasters.htm http://www.mpbrakes.com/mpfaqdiscs.htm http://www.mpbrakes.com/mpfaqvalving.htm
Aug 10th, 00, 10:03 AM
You can also keep the distribution valve that you have now & put an adjustable proportioning valve in your line going to your rear brakes to cut down the pressure going to them.
Aug 10th, 00, 10:10 AM
I just put front manual disc on my car last week, get a master cyliner for a 67 camaro and use the combination valve from the donor car and you'll be set.
68 468 700R4, and here it is;