I've just been installing new core plugs in my 20XE block. It's an early 20XEJ block actually.
Now on EPC theres two parts, some 36mm core plugs and some 38mm core plugs (think thats the sizes)
But my block needs all the same size, 36mm!?!?! is that right? For some reason I got 5 of each, but only the 36mm ones are needed for my block it would seem.
Anyone shed some light?
Are the 38mm ones for if you ruin a core plug orifice and therefore need to overbore the hole to save the block or what?