Is there any easy way to check if oil is being distributed around the engine? I ran the engine very briefly when checking the valve clearances and half expected oil to be thrown around everywhere with the viewing caps off but it looked fairly dry….
Not a lot of oil goes up that way. The cam is supplied by an oil passage surrounding a cylinder stud, the rest of the head is splash lubricated via the chain and remnants of the cam oil. With the caps open I used to get some thrown out by the tappets. If you’ve got an oil-pressure gauge you can plumb it into the port just below & to the front of the oil-filter cover.
My engine was never particularly quiet. Personally, if after doing the tensioner and re-checking the valve gap (whilst cold) i’d just ride it. BTW, if your gap starts closing up, beware! I didn’t clock on to what was happening and the inlet valve stem broke whilst on my way to work years ago. (I used to change gear at valve float 😀 )