hey ya`ll, first thanks for all the informatiom that is posted on this forum. was having a problem starting my arc on downhil side of 16" pipe ( on cap mostly ). started to do some reading on some of the problems , and found I had four main brushes stuck sounds like good enough excuse, but really made a big difference. using 3\16 hippy rods to cap at 75 in 3rd gear on a `65 red face. which is what I was getting used to, then could barely restart on the side thought maybe bad rods or bad operator ( of course ) but freeing up those brushes made me feel much better back to where I`m comfortable anyway thanks for all the info