UPDATE.
Finally found time to work on the Landrover.
Managed to get intercooler out with a bit of patients and a lot of bleeping, filled it and soaked it in degreaser twice giving it a good shake inbetween until no more tissue came out them flushed it through with water and drained finally annoyed the missus by cutting the ends of a coke can slotting over the outlet and putting her expensive hair dryer in the other end of the coke can and left it on warm for a couple of hours.
Anyway it's back on now and working fine.
So a big thanks to all you guys for good advice.