Lady Luscombe's engine needs a bottom overhaul. With 27 hours on new millenium cylinders the oil tank sprung a leak and dumped the oil. Pressure did not drop until I reduced power for landing when the sound of a broken piston rod banging around assaulted my ears. The oil tank has been welded. The engine is at a shop where they have not touched in since they got it a month ago. I understand they are busy so I'm thinking about pulling it and at least tearing it down myself. Sending parts needing inspection to a reputable shop and then reassembling. The cylinders seem to undamaged - yay. Questions: Any special tools needed for disassembly? Any special tools needed for reassembly assuming I have normal auto engine overhaul tools available? Any reason I can't do this with knowledgeable assistance and an A&P with a pen at the ready? Thanks in advance.