Hi Carda i found a little mistake in the manual:
in the .obj part it say at first: "Edit the objects in a text editor (I recommend Notepad++) and find and edit the following line;"
after that it says that: "You can use a find and replace to replace the lines with the following"
I have noticed that "line" turns into "lines". I also had the problem with the rear still showing up from the engine. Maybe you could correct it, if its a mistake. Or underline it!?
EDIT: i just installed the CFM engines too and in the Manual it got mentioned!
Robert