Nissan Micra - Nissan Micra Head Problems - Dr Muchenje

My Nissan Micra is smoking only on starting.

I removed the head and noted that cylinder number1 and 4 were oily.I took the head to the engineers to have the seals and guides changed. This did not solve my problem, this time cylinder number 3 and 2 are oily. Cylinder number 1 and 4 are dry.

What shall I do next? shall I buy a new cylinder head?

Nissan Micra - Nissan Micra Head Problems - gordonbennet

Get the guides replaced on 2 and 3 which should have been part of the previous episode.

New seals should have been fitted on all valves last time too.