CenTXFJ60
SILVER Star
So my 85 is an all stock set up. PO put in a new Aisen master. Did not bench bleed it. I redid all the knuckles, brakes, new calipers, shoes and wheel cylinders. I then bench bled the master and bled whole system with a mytivac bleeder system. I’ve done this on several trucks with good results. However I still have a spongy pedal on the first push. Second push is always 100%. I bought a new master from Napa. As I was taking the system apart I realized there’s a proportioning valve (seems to be what it is) below the master. I’ve seen these on all my 60’s however the FSM does not show it. I took it off and put around 80psi through both ports and the air flows right through. I have another from a part out and only one side flows freely. Was hoping the FSM could tell me how to test this valve. So my question is just that. And any other suggestions you may have. Thanks. Jimmy.