Putting brakes on and bleeder will not open
You can purge from the line too
There are multiple ways to crack open the bleeder without breaking it. If you have access to a torch get it red hot then cool it off as quick as possible with cold water which can sometimes shock it loose, if you have an airhammer with a hammer head you can very lightly hit as close to the bleeder as possible while you put light pressure on the fitting, right and loosen back and forth slowly until it breaks free.
SOURCE: I am trying to loosen a caliper bleeder valve.
Try hitting the area around the bleeder with a hammer .. it may help .. bleeders are tough if they don't go after being heated/lubed. You could try loosening the line into the caliper .. that may allow enough of a bleed, banking on the fact that there is still brake fluid in that caliper .. otherwise you may end up replacing that caliper.
SOURCE: I can't loosen a caliper bleeder valve.
try putting a six point socket with ratchet on the bleeder screw and try turning while tapping the top of the ratchet with a hammer.
SOURCE: brake fluid is not coming out when i open the
Good day Robert W73, there should be a metal pipe leading from the master cyclinder to the rear wheels and to the front wheels. Try loosening the pipe on the master cylinder and pump the brakes. It might be that there is an air lock in the master cylinder. By loosening this pipe the air forsing the brake fluid back will be released. As soon as the clean brake fluid comes out of the pipe tighten the pipe again and pump the brakes. Then step on the brake pedal and hold it in, while the brake pedal is depressed open the bleeding nipple and close it again. Repeat this procedure till you have clean brake fluid comming out of the bleeding nipple. Just remember to bleed all the wheels starting at the wheel furthest from the master cylinder and working your way to the closest wheel.
I hope this helps. If it does not help you might need to replace the seals on the inside of the master cylinder or you will have to replace the master cylinder itself as there might be pit marks on the inside causing the hydraulic fluid to bypass the seals.
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