ORIGINAL: Maxam
did you adjust a valve way too tight and it is hitting a piston? Unlikely but maybe possible.
No, it was before beginning to adjust the valves and the factory setting showed very much clearance in the range of .025 mm compaired to the .01 which is stated in the manual (checked on several rotations). I am wondering whether they really did a test run at UMS for 20 minutes. Now I don't know, should I start the engine or not? Didn't expect to be faced with such a problem ...