Originally Posted by 1960mog

Thanks for your reply's guys.

Things are turning from bad to worse.
Took the head of this morning and found vertical scratches in cylinder # 4.
Piston or rings started to seize in that cylinder.
All cylinders are on or exceeded there 0.2 MM wear limit.
I guess it's rebuild time.
Hope that at least 4 of the pistons are reusable.
Then I can get away with one used piston, new cylinder sleeves and piston rings, bearings, gaskets, timing chain and valve guides.