Camshaft clearance

Gaaahh!! I'll have to exuse My poor english.. I really don't know how to put it... I try... The axial clearence. If i grab the front of the camshaft(when mounted in motor) i can pull it like 2/16 out,then push it back,,of course..
Thanks and sorry for the English!!
2/16 inch..... 4,5 mm!!!