Lister D rocker arm shaft

Hi all.

A question for the brains trust.

Is there supposed to be a plug in the end of the rocker arm shaft and if so, does anyone have a picture of one.

My shaft is open to atmosphere allowing most of the grease to follow the path of least resistance straight out the end and down the engine block.

Yes there is supposed to be a plug, its nothing special just a tight fitting piece of metal about 1/4" long, two minutes on a lathe will have you sorted.

Maryalice

Awesome, thank you very much Maryalice.
There's the first of the non genuine parts added.
A sift through my bolt collection with the vernier callipers found a tight fitting grade 5 bolt from a torque convertor with an 11/32 shank.
Cut to ¼" squared on the bench grinder, polished with a stone, centre popped and some retaining compound to be sure it's going nowhere.