USAussie Messages: 15912 Registered: July 2007 Location: Sydney, Australia
Karma:
Senior Member
Mark,
I brought one of Jim H's pressure bleeders to Bean Station where we bled the brakes on George Z's GMC after he installed the
reaction arm system he won at a GMCMI Convention.
We installed a clamp to hold the teat on the front of the combination valve in and then pressurized the bleeder to 10 psi.
We bled the calipers one at time in the following order:
1) Passenger side - Rear
2) Passenger side - Middle
3) Driver side - Rear
4) Driver side - Middle
5) Passenger side - Front
6) Driver side - Front
It took less than 20 minutes and we got ALL the air out of the system.
This scenario was repeated on JohnT's GMC earlier this year in Humble, Texas.
Regards,
Rob M.
The Pedantic Mechanic
-----Original Message-----
From: A.
What you are implying is the pressure bleeder pressurizes the lines to such a low point that the shuttle doesn't move enough to shut
off the flow to the low pressure side.
But what it all comes down to, if what Mr. Henderson is proposing is reality, you can't pedal bleed a system with that PV4
combination valve. At least not one wheel at a time. You would have to open a bleeder on the front and rear at the same time, or the
"shuttle", which is a switch piston in the manual, would shut off the flow to the wheel you are trying to bleed.
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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