when first got my restored 1948 3600 chevy, the master cyclinder reservoir was dry. i filled it up and bled the brakes brakes workd fine for about 3 months. i took it out today and went to stop and nothing, right to the floor, looked and master cylinder needed fluid ( a lot). it filled, hand pump a few times to see if i could get air bubbles in MC but nothing. put the cap back on the MC, proceeded to. bleed the brakes and still nothing. looks like a fairly new MC, does this sound like MC failure????
