Back from the dead...
I have a ME engine and I've noticed that there are casting numbers on later-style engines, unlike my previous MK1 engines. When I removed the piston and rods, I labeled them accordingly. The order I have labeled does not correspond to the castings. Below is a breakdown.
My markings. Vs. Casting numbers
1. 3
2. 4
3. 1
4. 2
Essentially 1 and 3, 2 and 4 are switched. I trust my labeling, but I can see some instances where I could've mixed them (however I doubt in such a systematic way). I have a MK1 bentley, no MK2 so no mention of this. Sorry to nitpick.
TIA,
Khanh