Brake systems

[XJReaper]

Yesterday was front breaks and calipers. Today found a broken hard line to drivers rear drum. Spent day with one man bleeder bleeding the breaks. Still no breaks. Went and through in a booster, still no breaks. Tomorrow master cylinder.
If no breaks... I guess I crash.

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[mark sr]

You might try leaving that bleeder open and let gravity help purge some of the air out of that line.

 

[XJReaper]

Got all the air out and the peddle still drops to floor with no resistance.

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[TerryMason]

Once you purge the air from the system, and fill the master cylinder, does the fluid level drop at all? That would indicate a leak.

 

[JPNinPA]

Agree inspect for a leak or if the master cylinder leaks the fluid is pushing past the plunger. You would not see a leak until you separate the cylinder from the booster.

Also check your seals on the calipers Pistons. I put a reman caliper on a vehicle that ended up inverting the seal instead of pushing the plunger. When I removed the caliper the seal looked like an bicycle inter tube filled with fluid. The brake operated but not efficiently causing a pull to one side. First indicator was a drop in brake fluid with no leak or loss of pedal.


Regards,
JPNinPA

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