Lionel Engine Diagrams

You probably need to add some details on what specifically you want and what you want to do. As Jack Webb said, just the facts.....

Well, I would like to work on my lionel post war engines, NW-2's, 520 Box Cabs, Tie-ejectors, and accessories (Stations and Towers), and often would like to look at an exploding diagram for reference.  I was wondering if there is a library of diagrams on the web that is free to research? 

Sal Olsen used to sell CDs that were nice Prewar and PW , HO Lionel, and AF. check ebay, was 50.00 they had a great site for selling parts, they sell on ebay now. (olsen site is down). If you want this is her email sharon.ottparts@gmail.com she told me they are still sold 3.95 for postage, per 3/23/21 email.   (Yes the Lionel Greenberg's PW and modern era are the way to go, I have both books that cd has pages the books don't have) Good Luck Mark

Here is the book - always been a great resource for me. (Sorry, no free web site I know of.)

Both Greenberg and K-Line reprinted the Lionel Repair Book.  The K-Line issue appears on ebay on a regular basis.

I highly recommend the Greenberg book, and it not only covers engines, but also various cars and accessories, transformers, and track work.