discovery td5 fluid leaks all oil but different types

[disco2 td5]

my ace bottle keeps goin down and i keep toping it up it goes down i top it up and on this has gone for 6 months till my last pay and play day and i chose not to wash it had a look under it tonight and say it leaking out of one of the 4 pipes on the valve block  now its leaking from one of them are they sealed with orings???

next one is how easy is it to change the front prop shaft seal and does anybody know the seal size

next one crank shaft seal at gear box end now that can wait till gear box needs to come out

[martyn]

im of the opinion that the ace system is under pressure and its not a case of just undoing the pipe on the v block and replacing the o ring but i maybe wrong have been in the past

[disco2 td5]

changeing a oring in the ace just sounds to easy to me i half though the same myself