get the engine shop manual on eBay, it's the same one that is in pickup trucks around those years. If you can't find one for the bus try to find one for an F-350 pickup and the section where they specifically cover the engine (usually the pickup truck shop manuals are a set of several, and some of them will cover things that aren't relevant to your bus). i'm not talking about a Chilton's or Haynes manual, but the official shop manual put out by Ford.


In 94 they switched to a Powerstroke 7.3, so I'm not totally sure whether that's what's in your bus or not, and you'll want to make sure you know that part.