Posted by John Eickhof on Thursday, May 12, 2005 at 9:10PM :
In Reply to: re 47 half ton, 2 problems bleeding brakes posted by George in NW Michigan on Thursday, May 12, 2005 at 8:58PM :
The larger bleeders are of the military type, there is a 1/4" 20 NF bolt threaded into the bleeder (to protect it from the elements) Simply remove the bolts, then bleed in the normal fashion then replace them. The rear one may be this same type except that the bolt is missing, remove the bleeder screw and examine it closely, if it is threaded internally and is the same size as the larger one it should be fine, if not the the bleeder is broken off in the wheel cyl. Then just use an 'easy out' screw remover to remove the bleeder and get a replacement bleeder screw at the local parts house. Of course, if the brakes have been as-is for many years, I would recommend replacing the master and wheel cyls anyway just to bring your system into the 21st century! I also recommend using DOT-5 silicone fluid at that point! Good luck