Is there any way to use a coat hanger bent in the proper way to fit up the drain plug outlet? If you cant get it out that way, I would drop the pan and find it. Peace of mind is better than always wondering if it shows up at the wrong time..... Murphys law has already got you, dont let it get you later. JMO Good Luck
As far as feeling stupid, heres a little tid bit that I did. I pulled off the intake assembly and set down the four bolts that hold it . . . set them down on top of the motor, beside the intake opening and when I came back 2 minutes later, only 3 of them were there. OOOHHHH NOOOOOO. Three of us searched for 3 ( yes three hours ) and didnt find it. Tried flashlights, mirrors and vaccum, but to no avail. Figured it went inside the head. A few weeks later, working on buttoning up all the wires ( truck is being restored ) I found it laying by the oil filter. But, at least I found it and the piece of mind both knowing where it is and knowing that I dont have to pull the head off means more to me now because I know where its at.
As far as feeling stupid, heres a little tid bit that I did. I pulled off the intake assembly and set down the four bolts that hold it . . . set them down on top of the motor, beside the intake opening and when I came back 2 minutes later, only 3 of them were there. OOOHHHH NOOOOOO. Three of us searched for 3 ( yes three hours ) and didnt find it. Tried flashlights, mirrors and vaccum, but to no avail. Figured it went inside the head. A few weeks later, working on buttoning up all the wires ( truck is being restored ) I found it laying by the oil filter. But, at least I found it and the piece of mind both knowing where it is and knowing that I dont have to pull the head off means more to me now because I know where its at.