Hi,

I am new to this forum and hope that someone has any clue regarding my coolant leakage.
I have a 1968 series land rover 2.25 diesel that leaks coolant from the small 4mm holes in the engine block on the left side.
The holes are "man made" and the front one is situated just behind the alternator (see red arrow in attached picture), roughly at the same height as the drain tap.
My first thought was that these holes were some kind of drainage from the cylinder head bolt holes so I replaced the cylinder head gasget but that did not help.

What are those holes for? There are no plugs or threads what i can feel and they are far to small to be core plugs.

Thanks in advance for any advice how to solve the leakage issue!

Wow! Not seen those before. I'll take a look at a 2286 I've in the yard tomorrow, see if I can find them on it.

Are there 4 holes and definitely coolant not oil?, they’re not on the 5mb but there are bigger ones on my engine on other side, think my 200di has some but sealed off with silicon poss on other side
Can you stick a wire in see how deep they go, looks like they’re angled down?
Weeping and not squirting?