Massey Ferguson FE35 23C 12v glow plug conversion

This is a niche how-to, not a walkaround or buying guide: it shows converting a Massey Ferguson FE35 (23C engine) to 12v glow plugs while the cylinder head is already off for a blown gasket repair. It covers the actual drilling procedure with real measurements (29mm center, 5.5mm and 8.5mm drill bits, 10x1 tap) and the NGK plugs used. Best suited to owners doing their own cold-start/glow plug conversion on this specific head.

Appears to be a hands-on owner or mechanic documenting a DIY repair/modification on their own machine.