Drill two 12mm holes 3'' apart at one end of a 3ft length of right angle and bolt it to the pulley. 24mm spanner and squashed scaff pole or lump hammer.
Put spanner on before attaching angle,
Air compressor. Works well. Powers air tools with no problem.
Being constructed in the UK in the 1950s, it's heavy. Like they made everything out of ww2 tank parts.
Delivery can be arranged
£90
I'm led to believe if LPG is set too lean it causes an increase in engine temperature which is probably not good and may help in overheating, causing cracked blocks.
That's the plan Martynv8.. I guess a cracked 4.6 block is just plain dead and not repairable, so will use a spare 4l block with the good 4.6 stuff in it. Simples.
It was my fault for running the LPG to hot....Lesson learned.