I have been reading things that contradict each other on the net when It comes to re assembling a engine. I was looking for correct things to do that are important when re assembling and one thing I was wondering is do you use assembly lube on the back side of the bearing as well as the face that touches the crank shaft or just the back and lightly coat bearing face with non synthetic oil. I have read to do both so Im wondering because I know assembly lube is way thicker and wondering if it was correct to use it on the bearing face that touches crank shaft. Any other tips would be appreciated for assembly, I have a guide about break in, but any personal tips about what to do for engine break in period and first start up would be much appreciated. the engine is a stock ka24de with .40 over sized pistons. One other thing Iw as wondering if any one heard was, my machine shop said the rings he orderd with my pistons dont need file fitting adn are direct drop in.....has anyone heard of not having to file fit pistons since the block was bored and honed at the shop to my pistons....