Dipstick Tube Oil Leak

[ukkid35]

What is the best way to stop an oil leak from the base of the tube?

Perhaps there's an olive missing or something like that?

[ukkid35]

I have now fitted a new 1/2" brass olive. I will report back to confirm whether the long standing oil leak has been fixed.

PS I used engine assembly lube to hold the olive in place when refitting, you'll understand why when you try it