BC

Correct. With pressure and without. With backwards vacuum and pushing back up into the caliper.

BC

This involved bashing the caliper against the ground while Clare pumped and the valve was opened

GlenL

People are the same all over.

BC

Lol. I knew that would illicit some responses.

BC

This looks mostly resolved. Just drove it around (not registered, no headlights).

Front calipers bled clear fluid reverse and forward. Pushed out fluid from ss lines clear as well. Only when they were removed and smashed on the ground (still attached) did an entire gulp of air come out of bleeder.

Lessons learned - don’t assume vacuum and pressure will move bubbles without physical body movement. This was mentioned but with vac I assumed it was no issue.

BC

Now determining if I have to put prop valve back in.

Imo000

Smashing them on the ground to get the air out? How do you have the brake lines routed?

StratfordShark

Puzzled me too. Anyway they don’t require smashing on ground - the opposite of holding them higher with bleeders uppermost, and giving them taps with mallet

BC

How about “concerted bumping”.

dr bob

Hmmm on the "concerted bumping" trick. It's something I never thought of when chasing a similar soft-pedal problem. Good stuff!

Pulling all the air out with the vacuum pump before refilling was my solution to what was likely the same issue -- stranded fugitive air caused by surface tension of the fluid.

BC

I think your assumption that something flat out does or does not require an action is the same idiotic assumption I made that made this **** last over a week.

StratfordShark

Well it obviously worked for you and I’m glad it’s resolved - I know how frustrating problems like this can be. But I was simply puzzled how the calipers even reached the ground on the flexible hoses. We may just be using language differently - I agree hitting the calipers can be necessary, but given air rises to highest point once chased out of hiding place, it helps to hold rear calipers at least higher up since otherwise the T distributor by battery box is highest point.

BC

Understood.

No T junction on OB cars. Two lines from engine bay. Also , only fronts were able to hit ground.