Rear brakes bleeding

["Meron" <phwomp@cosmoslink.net>]

To all of you that are interested in brakes,
A couple weeks ago I attempted to change my brake fluid (86 5Kcstq), I
rigged a presure cap and proceeded to bleed the system:

Fronts (calipers were OK) bled the brake fluid without a problem

Rear, not a drop (maybe, a couple drops but not more) 

Try to bleed manually, same as above

Brakes OK (rear) at least when I checked on the hoist, apply brakes,
calipers move,

Advice (from the list):turn off ABS- no difference 
                              bleed master cylinder-no difference
                              push pedal with a bar-no difference
                              increase air pressure (on bleeder set-up)-no
difference
                              move proportioning valve-no difference
                              pray a lot-no difference
                              promise god to sacrifice my first born-no
difference
 
And the guilty party is, the brake proportioning valve, there is brake
fluid flow up to the "in" of the proportioning valve but no "out".
I disassembled the brake prop. valve and could not find any problem, blew
air through it and it seems to work OK.
I am having a new/used valve coming (hurry up Chris), I will update you on
brake phase 2 shortly.
I did change my fluid again from Pentosin (DOT 4 brake fluid) to DTE blue
fluid, works good.
Avi Meron
86 5Kcstq
I am not always the devil advocate but never one to miss an opportunity....