Ok did the cam timing again today, after some thought I locked the cam in place with the pin then took out 2 bolts and left third in but backed out a bit.
Got underneath and took that little inspection plate off so I could get a better look to see where the 'slot' was.
Moved crank in place with screwdriver in flywheel teeth levering against edge of inspection plate hole (gentle effort was plenty) and screwed crank locking pin in place. Once again thanks for the tip of what to look for.
Went back up top and cleaned cam sprocket bolts and threads and loctited in place (pretty confident after yestys practice session that I had it right)
pulled locking pins and rotated a few times to check slots were now where they should be top and bottom.
The injector timing adjustment got rid of the big 3 second lag when aircon on, so no difference in takeoff aircon on or off, and big improvement in throttle response, and I did note when I had opened the cover the adjuster screws on the rockers were all over the place (b4 I undid the lock nuts and wound them out)
So on the test drive last night with injectors done was happy with improvement and had only a very slight hesitation as pedal pushed down.
After cam timing done properly and just been out test driving (had an oil leak to track down while I was covered in it so late finish again) I now have a 'normal' car that moves off the line with no throttle delay and plenty of go for its size.
I have trawled the various land rover forums since I got the thing 3 months ago chasing the very dangerous delayed throttle response issue and am happy my thoughts to stop chasing the 'technical electrikery stuff' and get back to checking the mechanical setup paid off.
Thanks Discorevy for setting me straight on what I should be looking at.
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