Oil dipstick tube install?

mine was really tight, I cut a metal rod to fit snug inside the tube with a little oil. it was about 1" longer than the tube and I peened the top end over a tight fitting nut to make a good surface area for tapping it in.

Dave's screwdriver idea is probably sufficient and much easier, but I wanted to make sure I didn't pinch the bottom while driving it in.

engine was still on an engine stand so I also inspected the underside to make sure no swarf etc was created. also gave it a good blow with the air gun and wiped it with turps for good measure. yes, I'm anal about this kinda thing.

God knows what I'll have to do if I ever want to get it out again.