no problem, I just didn't want to confuse the fella. I HAVE seen cams that have oil holes but they were for 7500 horsepower diesels that drove a semi-large oil tanker. (only held around 10 million gallons of cargo) you didn't add oil until it was 350 gallons low. you could also replace a single lobe. Those are the engines I used to work on. I kind of miss the ships....I like the teeing in idea.