thanks for the tip. I just purchased a used 1st Gen and when I went to check the oil......the entire tube came out with the dipstick.
I got very scared since it was getting dark and I couldn't manage to put it back in its hole due to the hot heatshield.....but I did finally got it in there.
One thing I noticed is that there was no o-ring attached to that oil level pipe. Did the new one you purchased from the dealer come with a o-ring?
My other Hondas do have o-rings on the dipstick tubes.