Putting in a new water pump with my new engine rebuild.
Its been along time, is the hole for overflow, oil or air ?
See photo, which way does hole go in the photo, I think down but painted over any indication marks.
thanks
![DSCN9679 (1).JPG DSCN9679 (1).JPG](https://www.forebodiesonly.com/forum/attachments/dscn9679-1-jpg.85665/)
Its been along time, is the hole for overflow, oil or air ?
See photo, which way does hole go in the photo, I think down but painted over any indication marks.
thanks