Bell Housing Blow Hole
I admit my knowledge of E21s and the M10 engine are limited. I recently acquired a 1983 320i, which is in pretty good nick, however, it does have some issues.
I'm sure will learn more over time, but I do have a question for those who are willing to help without telling me to use the "search" function of the forum. I've done that already, thank you.
One question I have is that I noticed a hole in the top of the bell housing. At least that is what I think I'm looking at. It definitely looks as if it is meant to be there, however, is it supposed to have some sort of cap? And yes, I looked at the exploded graphics on RealOEM. (see pic)