Probably put a slight twist, bulge in A post, which effectively moves the door back a smidgen, if you are lucky, the bulge will be in the door frame around the hinge area
Still the guy in the jcb loadall regretted that, all the electric connections are below the cab, and everything, engine, transmission and hydraulic system is electrically operated
Sadly the seal was always going to leak, once fitted it shouldn’t have to be held in place if fitted correctly, you need to make sure the lips don’t get pushed back when first fitting seal on crank
When the new battery was fitted, the terminals were not connected incorrectly, even for a millisecond? Or a battery charger connected incorrectly? Or has it been jump started from another vehicle with an engine running?
It’s attached by bolts to the body shell, all double skinned to give rigidity to body shell, I doubt you’ll find any damage, the actual noise will always sound worse