ting - after valve seal replacement

Hello,

I have recently replaces the valve seals on the disco. I did it with the head in place by doing TDC 1-4 the turning 180 to do 2-3.

the seals where knackered and new ones fitted. there was blue some for the first 2-3 mins of driving then cleared, also ran very rough during this time. previous to the i replaced the lift pump and glow plugs.

So after reassembling it all it still has blue smoke after the first start up but more worryingly it has a TING noise when cold ...... valves seem to be seated ok etc.

any suggestions please chaps, as i cant afford to keep throwing money at it
Anthony

How many miles has it done?

Coming up to 280 thousand

Must add that we have tested injectors and one seems to be playing up going to test it tomorrow