Proportional Brake Valve Leaking...

[AsH_]

my proportional brake valve is slowly leaking... i'm in the process of replacing it, i know where it is leaking from but i just to find out what purpose that little circle thing does...???


thats where its leaking...
http://img441.imageshack.us/img441/7632/4040lp8.jpg

[HondaTechy]

My quess just a casting hole.

[AsH_]

i touch it and it brake fluid comes out...