start with undoing brass plug (13mm ) on passenger side of block to drain coolant ,rocker shaft ,push rods ,injector pipes ,wire to glow plugs,inlet and exhaust manifold water pipes etc
Ok...Is there a link to the instructions at all? Cant continue on tonight unfortunately, although I do appreciate you taking your time to talk me through!
I shall do... Many, many thanks! Am I looking at replacing the valve seals at all, or the valves, or is this exploratory to determine exactly whats wrong....
sounds like head gasket or valve if you cant see any reason for one not opening or staying open must be on underside of head ,sign of head gasket can be staining around fire ring or even blown through,take some pictures ,
James. I really can't thank you enough for your advice, but after sleeping on it, I'm going to let a garage sort my problems out as the vehicles needed for work and an upcoming holiday. Many Thanks again....
I removed the rocker cover and watched while the engine was running - getting covered in oil at the same time.... what I did notice was what I think is the injector housing was discoloured - more of a burnt bronze colour than the normal steel colour.....
Well, Its at the garage now, where they seem to think its possibly a sticky valve. I'll update once I hear back from them as to what it was, in the hopes that someone with a similar problem can search and get an answer...