Skystroller

Hi All, I'm new to this scene as I've always gone for smaller toy cars like MX5's etc... I've recently bought myself a Landrover Defender 1987 with a 300TDI engine from a disco under the bonnet... A couple of fiddly things are wrong with it at the moment but it'll be an ongoing project.. Reason for my comment on this thread is one of the issues is the dipstick tube completely came out when i tried to take the rod out to check the oil... Where on earth does it fit in?! could someone do me a favour and let me know either by pointing it out using the number keys on the diagram in this thread or by describing the location? I'm an amateur but I'm doing my best to learn!!