Hello Motor Talk municipality. Now it’s time, the cylinder head is down and now the piston rings are replaced with it. Last time I renewed the valve shaft seals, but the oil consumption is still at 1 litre at approx. 800- 1000 km. The mileage is currently 65,000 km. What causes me to break my head are the numbers on the piston, I once put 4 pictures of the pistons in here. It stands here on the piston 2 times H08 H4 (pistons 2 and 4) and 2 times H09 H4 (pistons 1 and 3). So the number H08 for pistons with 79.08 mm diameter, H09 for 79.08 mm or am I wrong here? I will measure the cylinder diameter tomorrow, if I pulled the pistons and put them in here. In addition, I took pictures of the piston combustion chambers from the cylinder head. Oh yes, there are still mock marks on the cylinder treads, only the photos will not be so good, will take pictures tomorrow with my son’s camera. uch im vor out for numerous tips and opinions. Greeting Werner