Of course you use the proper name. It works really well when everyone is on the same page also. It gets pretty interesting when you have to deal with "thingy, do-dads, canuters, gizzard gaskets, that funny looking part with the notch".
Brass is pretty soft and as tight as the tube is in the case, you might swell it out while you are knocking it in and get it stuck, but its your "coal truck"
Your engine is a dual port with a "dog house " cooler ? Look at your engine case and you will notice a threaded bushing that is pressed into the upper mounting hole. The mounting bolt is installed from underneath the car on a Super Beetle, but you have a '67 tranny that may or not have a cast in notch on the tranny case to help hold the bolt while you put the 17mm nut on from inside the engine comp. With you having a "off set dog house cooler" you will not be able to put the nut on. If your tranny has the notch ,you will not be able to turn the bolt from under the car. The bottom line is if you have this kind of set up , You are SOL.
I wouldn't lose a lot of sleep over this because I would bet that at least 99.99% of the Bugs running around don't have that bolt anyway.