In the engine area of the technical field there are some pdf files you can download on some german aircraft engines. 2 of them are different documents on the Db 605 engine spec's and another file on axis fuels. I have 3 different copies of the following part's manuals that I will look at to see if I can find any good pictures. If I find any then will scan and post them but that may take some time. Lots of pages and it makes it hard for I dont read German.
Another picture, this one of the installation of the GM1 Power boost system for a Bf-109E-7/Z. Source is the Me-109 recognition manual by Marco Ferandez Sommerau.