Moin,moin I now have the 2 piston-eater in a short time, a buddy had a 170er lying already in place (looked still very good from just 700km) which we then installed, pistons nicely lubricated with oil and everything well assembled now comes the big one but: we have old head + foot seals installed because he meant they are still good and he is KFzler therefore I believed him so.. well then after not even 30 km the 170er was gone, well half as bad ori wied he on it and the ori looks the same now but kept it longer.I had problems all the time however because she burned cooling water with because of the seals, however, it never became too hot because I always filled up… Yes I know unwise but everyone makes mistakes sometimes, such a once…. the thing is that it was not a real eater with both, only pistons and heads have got what. Now my question can be this through the water problem? And once a whole and ere Question: I need a new kit now, but only find some tuning kits or go with new pistons (the what?,to do that I still need a new head)PS: I never build old seals again(the pistons are slightly scratched on top and on the head are chipped)Uploading pictures works like not Mfgj