thanks Rick.
I was able to get the intercooler out without removing anything but the top bracket;
Attachment 56574
I could get my arm down through the cutout to undo the bottomscrew ring clamp.
Attachment 56575
Very dirty, alot of blocked holes and black inside
Attachment 56576
Couple of goes with degreaser, then a litre of diesel
Attachment 56577
while it was soaking gave it a go with compressed air, straightened out the fins a bit, and gave it a bath
Attachment 56578
Emptied out the diesel and used laundry soap to flush the inside a few times,
ran the hose through it for a few minutes to get out any residue soap, it's now drying in the sun.
Now to investigate the crank case 'cyclonic breather', i think that is actually what is letting all the oil through to the air intake. Do they wear out (the cyclonic breather)?

