m20 bleed screw

[misfortune]

So after years of ignorance I now know where the bleed screw is. Unfortunately, I can't loosen it. Its on tighter than well (use your imagination) and I've tried a size 8mm socket and crescent wrench and a 11/16 crescent wrench. Any suggestions?

[Rodericb]

So after years of ignorance I now know where the bleed screw is. Unfortunately, I can't loosen it. Its on tighter than well (use your imagination) and I've tried a size 8mm socket and crescent wrench and a 11/16 crescent wrench. Any suggestions?

Spray some penetrating oil on the screw and let it sit for a while. I had the same problem and it worked out fine.