Decided to spend some 'quality time' with the CTD this afternoon and check the valve lash. They were all off. Way off. The #3 intake valve was around . 052"
and the rest were just as bad or worse - whoever set these must have been on something. The truck only has 67,000 miles. Adjusted intakes to . 010" and exhaust to . 020". It's like a whole different truck now - smoother running, less noise. The loud noise that was coming from the air cleaner box is gone, and so is the 'knocking' sound that I thought might have been a bad injector or something worse. Definately worth the 1 1/2 hours spent outside on a hot Texas afternoon. Now I just have to fix the rear door that won't open...
