How do I make the crankshaft torque to operate against a load torque?

Hi

I'm trying to work on a simulation for a solenoide that it's force creates a torque for a crankshaft, and lifts a load that also creates a torque.

How can I show the diffirential between the torque of the solenoid and the load torque?

In the figuration below it shows only the load torque