So if you were following this on the other thread, you'll know that the little pool of oil turned out to be quite serious. the head gasket was spitting oil out at the back so she has been stripped down again. The rubber seal round the timing chain was twisted and the head gasket had been stuck back together with gasket sealant. quick skim and valves re seated, new gaskets and all back together today and running by tea time. A bit disappointed that none of the plug leads I bought last year were actually long enough so I had to use some old spares, but this meant rather poor running. So it'll be a few days before I get her running smoothly