Yeah it's much akin to disassembling an oil pump, yet, people just will NOT do it. Our auto shop instructor hammered that into us when we were kids in school. Take everything apart and inspect it. It does two things. First, it teaches you how things come apart and go back together. Secondly, it enables you to find any possible defects or metal shavings and such. There's just no down side and lots of people are just too STUPID to take the advice and do it.