When you place a diesel engine vertically, there are fuel inputs on two sides, depending on which way you were facing when it was placed. However, when glued to a rotating contraption and turned 90 degrees, instead of changing the sides that the inputs are located on, as should be expected after being rotated, the sides of the inputs remain the same as when it was placed. More often than not, this results in the fuel input being disconnected, unless a second one is provided with this behavior in mind. Additionally, due to the custom wrench actions when clicking an engine, after being placed the engine becomes impossible to rotate by clicking the side with a wrench like many other create blocks. The only situation in which this would be necessary is the aforementioned vertical state, where clicking the top or bottom faces (where the shaft is) should change the sides of the fuel input. As far as i can tell, clicking the top and bottom with a wrench has no effect currently, so shouldn't affect existing wrench behavior.

TL;DR, when rotated on a contraption, vertical diesel engines should change the sides of their fuel inputs to match. Better support for rotating engines in this state with the wrench would also be appreciated.

Love the mod! Keep up the good work!

After updating, this bug still occurs on 1.3.5. Changing title to match.