Here's a little Lego set that I like. Its the Airplane Mechanic from the City theme range. You get quite a lot of tiny pieces of tools including a drip and an oil can (not in these pics). The jet engine should be similar to one of the passenger airplane sets. The design of the jet engine looks like a typical commercial jet turbofan.
Overall view of the set. The jet engine can be hoisted up using the ball-jointed hook.
Close up of the jet engine on the hoist. The turbofan blades can rotate and come in a metallic black color.
Another angle of the jet engine and the smiley mechanic.
The tools are stored on a rack.
A dolly is supplied to wheel the jet engine around.
Removing the compressor fan, you can see right through the jet engine.