I am installing a new timing belt on my 01 tdi beetle. I have the crank timing mark at top dead center. The camshaft is close to top dead center but off a little so the cam lock will not go in. My question is... could it be possible the last person which installed the belt had the marks off a little. Shoud I go ahead and loosen the cam bolt, loose the gear from the cam shaft and then turn cam slightly to align the cam lock...thanks