Leaking antifreeze

AFTER I installed my 360,I noticed anti-freeze on the ground.Turns out the plug at the back of d.side cylinder head had a pinhole.I thought about pulling the motor,then realised I could just pull the steering column and go through there!Well it worked,took about 15 mins.(just put the column in)Here,s a pic. of the plug.Good luck with yours,if it,s at the back of motor?You might as well pull and do all!