Hi everyone I just bought a used boat with a 100hp mariner 1989 inline 4 . the motor was seized and I was hoping to rebuild it . this past weekend I opened it up and found that the top of the pistons around the top ring had many broken pieces and one had a large crack running halfway around it just above the piston pin . im thinking the timing or firing order was off a little . the interesting thing is that the cylinder sleeves have slid away the top of the cylinder .so I was wondering is there anyway to push them back in. thx for your help