I2F described exactly what I did to fix a leaking oil pan, but instead of just a loop around the boom, I also added a line as an outhaul
Between the halyard
(vertical lift) the outhaul
(fore and aft control) and the traveler, I had 3D control of the engine. I just hung it to remove the pan from the comfort of my cockpit
Of course, you only need to lift it a few inches,, but the same theory might apply to your situation.