Done a bit on this today, now this machine is one family owned from new (1978) it lived on a farm down in Cornwall near the sea, hence the rot,
So I started to strip it of panels ready for a wash, Now when I bought it I new it had a leaking water pump a side core plug seep and a leak on the back of the head, which I knew has a core plug there, so I gave it a wash and then found this