Hi guys anyone able to help, I’ve just started the engine after a rebuild and oil started to pour out of the side of the head next to the coolant flange. I found a picture of the grub screw that is missing on my head (think the machine shop pulled it out and forgot to put it back). I’ve been looking at etka online and it’s limited so cannot find a part number. Anyone know what this may be or if it can even be bought separately? Thanks people.