hit them with a brass wheel yielding what the picture shows... is that possibly just more caked on crap? how hard can i go at these things? can i use a steel wire wheel?crazypj said:Need to get them on a wire wheel and see what they look like 'clean'
Could be rust pitting, with valve closed the seats are generally OK
excellent point! thanks!crazypj said:Use a steel wire wheel, valve should be harder material than wheel, if it isn't, it needs changing