Nice even wear without exposing the next layer of material in the bearing. Pick up a boroscope on Amazon, they're fairly inexpensive and quite useful.
Versatile Teslong endoscope camera
That will let you inspect all the bearings. Usually the first bearing has the worst wear. Sometimes it's the second bearing, you'll see when you pull your camshaft out there's a wide groove in the journal oils by the variable valve timing actuator. This effectively reduces the bearing surface area on the journal.
If the engine has had regular oil changes, the camshaft bearings tend to be just fine. I see more wear on the camshaft bearings in engines where people waited for the display to tell them to change the oil. That can be 7 or 8,000 miles. You're far better off to change it before it hits 5,000 miles.
Versatile Teslong endoscope camera
That will let you inspect all the bearings. Usually the first bearing has the worst wear. Sometimes it's the second bearing, you'll see when you pull your camshaft out there's a wide groove in the journal oils by the variable valve timing actuator. This effectively reduces the bearing surface area on the journal.
If the engine has had regular oil changes, the camshaft bearings tend to be just fine. I see more wear on the camshaft bearings in engines where people waited for the display to tell them to change the oil. That can be 7 or 8,000 miles. You're far better off to change it before it hits 5,000 miles.
