Thanks S130
Well, ..... I tried :-/ When raising the cover I can vaguely see a bracket at the rear. There is flex enough for me to rais it up enough to struggle and do things but it feels as if the bracket is about 15 cm long and bolts to some obscure part of the rear of the engine. Logically that would not make too much sense as people will obviously have to remove it foer serving etc., so it makes perfect sense that there should be some sort of easy release. However, if I used any more force, I would break it, hence I struggled on and changed all the plugs with a few minor cuts to my arms where the edge of the cover was pressing on them while undoing bolts and changing the plugs.
Always thought of myself as a reasonably good engineer but this darned thing has me beat. Anyway job is done now. I will try harder next time.
As an aside, I am not looking forward to taking it off again. the left bolt on this third time of taking the top cover off (or half off) was really hard to undo and felt on the verge of snaping. For some reason this time it remained locked to the fixed nut in the head and it was that that unscrewed from the head rather than the bolt that goes into it. Secondly number 2 cylinder coil bolt was hard and when replacing it, it screwed in 3/4 then became very tight as if it was going into the wrong thread. I screwed it back out and there was a little thread helicoil on the bottom portion so I wire brushed it off and put back. Again when it got to the last portion it became extremely tight and I just gently continued until it had the coil mildly gripped but it really did feel as though I was going to strip it.
Completed a full service now but did not see where the Auto gearbox filler is. I did see a largebolt underneath that looks like a drain plug on the bottom of the front Diff but not sure where I wild fill it up if I did drain it? Is there even a dipstick or something for the auto box?