I left my 27mm socket on the front of the engine and forgot about it, started the car, and it undid the bolt and it fell on the floor with my tool!

I took the bolt and put it back in, but I can only get it as tight as the resistance of turning the engine, does it need to be tighter than that or do I have to torque it somehow? And how would I hold the crank steady to do that?

Did I break anything? Its all still in place and I realized it after like 5 seconds of having the engine on when I heard the tool fall on the floor!

Help?!?!

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