Hi guys,
Hopefully someone doesn't tell me that I've missed this already, as I did a search but came up with nothing / wrong stuff.
I was cleaning my intake today when I noticed a 'spare' hole at the back of the engine head just below the intake at the back.
https://photos.app.goo.gl/e91IamJ62XWqLFxI3
Hopefully that shows up? if not its just below the round port at the back.
I put the inspection camera down the thread to check it out but I can't make head nor tail of what it would actually be used for ? The thread is the same size as the banjo at the top of the head next to the glow plug wire
any ideas would be appreciated (hopefully I haven't missed anything on my reassembly )