I'm finally about to reassemble my engine after a main bearing failure. I've read the service instructions but I want some advice from guys that do this regularly. My first question is what do you use to pre-lube the cam and lifters and the bearings when assembling the engine? Lycoming recommends lubricants that are near impossible to find. My second question is about the case sealant. Lycoming has approved 3 methods. Perfect Seal #4 and silk thread, Loctite 515 and RTV 102. Which one works the best? Thanks in advance for the help.