And complete brake failure after an emergency stop..... (1 Viewer)

[Jaric00n]

FJ60 '87

master cylinder replaced earlier this year with OEM/Toyota part.

Slid under it and checked for wet spots or anything that would show an issue or leaks as when the pedal is pressed fluid goes missing.

Checked rears and it's all nice and dry, no fluid dripping anywhere on the wheels and at the back of the plate
Checked the long hard line from rear to front and looked for wet spots or anything, and it's all dry.
Added fluid and asked my wife to press on brake pedal....lo and behold fluid still vanished but no drips no wet spots anywhere.\

Checked flexible tubes and all clear
checked front and no drips no wetness , wheels are dry.

if I fill up MC reservoir it ill stay full..

no wetness in engine compartment under the MC or brake booster
no corrosion in the area
Brake lines look and feel dry as I run my fingers along them no sign of leaks....

I'm starting to think Master Cylinder dumping brake fluid in the brake booster?

 

[FJACS]

If there’s no visible leaks along the lines, hoses, at the wheel cylinders or calipers, it could well be going into the booster.

you can loosen the m/c from the booster to verify

 

[Jaric00n]

That's what I am thinking at this point....

Off to undo the MC