Add to your path to wisdom that crate motors have warranty's and you could have done a whole lot more damage with a mistake and you were just lucky it seized up instead of kept going and you forgot you have a ring compressor and several other tools you forgot to mention. Like an engine hoist and an engine stand. It is a little more than knowing how to use a torque wrench after all. Other things like installing a rope seal. Of course it can be done by someone who can read but it depends on the persons overall skill and understanding and shop practices and tools. Many don't want to do it, so what? They don't need the satisfaction of saying "Me and the machine shop built that engine....twice".

Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn