Datsun Roadster Forum-311s.org

Where is the gallery plug located on a 1969 Datsun , fair Lady, 1600

Have a look at this parts diagram:



Scan through the associated parts list and you can locate all the oil plugs and expansion plugs fitted to the engine block:

https://www.carpartsmanual.com/datsun/s ... nder-block

I don't believe this information changes from 3 main to 4 main bearing engines so you should be good to go