Side rocker cover removal

[stan]

Hi folks

I was doing tappet adjusting last night for the first time on this car and well is there a smart way to remove the exhaust valve rocker cover?
I had to take the dipstick rod out and drop the cover down. Is this correct?

Seems a bit odd?

Thanks

Stan

[Phil Nottingham]

Yes but:

a) It may be stuck hard 
b) Its easier access if the dipstick tube is removed

[stan]

Thanks Phil. Yes sorry I meant the tube. I unscrewed the whole thing not realising it was 2 nuts. Once out I loosed them so next time I can just release the top nut and tube. Surprised they didnt consider this as its a regular service area.

Ok then at least I know I was doing the right thing and not being foolish missing some easy trick?