Hi all, Have purchased a new chain as I considered the other one US. In the meantime pulled the head off to check the condition of everything there. Someone had obviously been there before hand as all the head bolts were relatively loose and one was missing. More importantly the inlet valve seat was hanging from the valve stem after parting company from the block. I think I will remove the valve, freeze shrink the seat and JB Weld it back in wilth some staking for good measure.
