Did you thouroughly clean the mating surfaces of the cylinder and cylinder head and torque the head evenly to 35Nm?
It is always good practice to check the head and cylinder mating surfaces for warpage when dismantled and skim if necessary.
1. Drain all the oil coolant out reassemble and put fresh oil and coolant in.
2.Turn the engine over a good number of times on the starter motor with the plugs out.
3. Drain the oil and replace the oil filter and all should be ok.
If you think it necessary repeat the procedure from step 2 and just replace the oil.
It is always good practice to check the head and cylinder mating surfaces for warpage when dismantled and skim if necessary.
1. Drain all the oil coolant out reassemble and put fresh oil and coolant in.
2.Turn the engine over a good number of times on the starter motor with the plugs out.
3. Drain the oil and replace the oil filter and all should be ok.
If you think it necessary repeat the procedure from step 2 and just replace the oil.