Wood beam

I made a mistake when I redid the garage while the walls were still open and the door wasnt yet installed
I could have have put a 4x4x 1/4 tubing on top of the beam and additional supports, I never anticipated lifting anything heavier than a engine and I did have a engine crane.
I will have to leave the machine were it is and work on it there rather than at home as thats the only option
Thanks for all the suggestions