can anybody tell me if this is supposed to be here? or if it can do damage to my car?

its an auto btw

 

I believe that is for timing the engine, as the older F sreies engines were flywheel timed rather than crank pulley. Not sure if there is supposed to be a rubber grommet in it though.

 

Hopefully that's the flywheel you're looking at. I think the angle just makes it look like a hole in the BLOCK!?!?

Back in 1991 the spark-timing marks are on the flywheel not on the front pulley.

There's probably supposed to be a rubber plug, but when my daughter bought an old 1992, the plug was missing.

 

ahh thanks! anybody have any idea where to get a plug and what its actually called?

 

11109-PK2-010 SEAL, TIMING RUBBER

Its a ~$4 part at the dealership.