For a basic primer check out this site
how stuff works It covers some of the inner workings of an engine. I also thought I saw a "how to troubleshoot" link in there too.
The haynes manual should be the same or at least close. The only difference in the engine as far as I know is that the America got the same engine this year as the Speedy has had all along? (I'm sure someone will correct this if I'm in error) So when you read the manual where it says "for the america..." skip to where it says "for the speedy..."
The manuals are worth their wieght in gold IMO.
