Accumalating alot of broken engines and would like to learn how to repair. Never done this before so need alot of detail on diagnosis and repair. Could anyone refer me to sources to cover this subject?
Well it would depend on wut kind of engines ur talking about. If ur talking Diesel engines I would be defanitly able to help ya. Then I would need to know wut kinda of diesels ur lookin at marine diesel or heavy duty diesel?? If ur talking spark-ignited (gas) engines I’ll be able to help ya a little bit. Suprisingly I know more about diesel than gas engines. Usually it’s the other way around. I’m also not sure if ur looking for engine specs or wut?? So. . I wouldn’t mind helpin ya out, with that info. 
Take small engine repair bro. Start small & simplistic