I am having a helluva time. I have gone through two sets of piston rings trying to get the piston into the cylinder. It is a high torque puch cylinder with matching piston the rings are a little different than non high torque... Anyways is there anything I should know, tricks or anything, other than oiling it up and squeezing them together. I can get the damn thing in with just the top ring but not with the bottom ring it just cracks!!!!!!!!!