Hello gentlemans
Can someone gimme hand and tell how damper is hold on shaft?Engine has been on boxes 20 year so i dont have information about some specks.Thanks
Jani from North

Hello Jani,
Welcome. I think there is a few other Fins that use this site.
The crankshaft end has a keyway notch cut into it for a semi-circle shaped "woodruff key".The damper has a slot cut into it. Place the wooddruff key into the crank keyway,align the damper slot with it and drive the damper onto the end of the crank with a sturdy mallet or hammer until it seats. Hope this helps.

What Drew said, but I would add that if possible, have the end of the crank drilled and tapped so you can draw the damper back on instead of hammering it on. The payoff is if you ever have to take it off again after the engine is back in the car.

Thanks about information.
So damper is hold on place with luck and tight joint.No bolt or glue.

Yes, but I would do as gearhead suggest and drill and tap the crank end.