Hi Guys thanks for advice so far, need a wee bit more help, having changed the cam belt etc I briefly stared engine, sounded ok. I decided to put replacement caps on the valve tops, it was then that I noticed that some of the new push rods were bent, I took the rocker shaft apart and on a straight edge it 'looked' ok I reassembled but when I looked closely I could see that the rockershaft clamps were not completely sitting on the cylinder head face, Does this mean the rocker shaft is bent, would this account for the bent pushrods, if it is that is shaft bent can I fit the existing rockers etc on a new shaft (Britcar UK do one for about £55). Also I think I made a massive school boy error when I first refitted the new push rods I stared the engine before I had reset the tappets!!! I know how many times can I kick my self any advice(apart from more kicking) greatly appriciated BPD