I'm trying to remove a trem spring and it's pretty well stuck in the block. I can rotate it a bit but it won't pull out. I've tried pliers, string, screwdrivers, all with the same non-result. Right now it's sitting with a drop of machine oil where the spring enters the block. I've worked it in as best I could and am letting time and gravity do their thing with the oil. Does anyone have any other suggestions on how I can get the spring out of the block? Thanks!