keeping oil pump attached Model b engine

[FrankWest]

Started dropping the oil pan, just loosened bolts. I purchased this special screw attachment to keep the oil pump from falling out after dropping the pan. Where does that screw in. Searching under distributer side of engine near above drain hole in pan below distributer. I see one screw??
does that get removed and this crew tool inserted there??
There are not many diagrams about this. I even have The model A mechanics handbook and there he cautions do not screw in the pump with side screw?
Maybe things have change on model B engine. Any help will be greatly appreciated!
Thanks

 

[Kurt in NJ]

that screw head is a pipe plug, remove that to use the "tool"
also look at the spring at the bottom of the oil pump, they get pitted from the acids and break

 

[FrankWest]

Great! You saved the day!