Hi, thanks for suggestion.

I thought it might be a hydraulic lifter issue and I have "Forte'd" it but without improvement.

Obviously, a proper compression test would represent a major amount of work (Glow plugs/Injectors)

But it would be interesting to listen to it cranking.

(At the risk of asking an embarasingly dumb question, what is the best way of preventing the engine from starting so I can hear it or use the Pico cranking tool)