Spin them (one at a time) all the way around a couple of times with a 17 mm socket and a ratchet on the cam gear bolts. Beware, they will get easier/harder to turn, and on the backside of the lobe, they'll have some energy stored up, and will try and jump away from you.
An illustration of a Douglas-fir tree. The Douglas-fir was designated as the official state tree by the legislature in 1939. Oregon was the eighth state to name a state tree. It is named for David Douglas, a botanist who described the tree on his first trip to the Pacific Northwest in 1825.
On to state tree. About Oregon, My Oregon. The song, Oregon, My Oregon, was adopted as the official Oregon state song in 1927. The music was written by Henry B. Murtagh and the words by John A. Buchanan. Land of the Empire Builders, Land of the Golden West; Conquered and held by free men, Fairest and the best.