Hi Mark,
I have the same system and had the same problems. I was told that because
the CB type cylinder sits on an angle, the air bubble inside sits at the top
of the fat end of the cylinder and does not get completely flushed out when
you pump the system.
The solution seems to be to get the cylinder level when bleeding. Some
people say to bench bleed it before installing it, but the fluid always
pours out before I can get it anywhere near the truck... You can try and
unbolt the pedal tower and hold it level while bleeding. I did this and
only succeeded in pouring brake fluid all over my newly painted foot wells
:-( You can also try jacking up the front end of the truck, but it needs to
be awfully high up and is inherently dangerous. The best method that I
found was to go find a freshly dumped pile of dirt or some thing similar,
drive the front wheels up onto this with the rears still on level ground,
chalk everything securely and bleed away. I managed to get a few good farts
of air out of my lines even after 2 weeks of "regular" bleeding in my
driveway. FWIW my brakes are still a bit soft but the do work...
Hope this helps,
Paul Quin
1961 SII 88
Victoria, BC
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