innokente

Never heard back, so I bought a new one, but while it was coming, i thought of another, easy fix. Here's what I did and it's been working for a few hundred miles so far. I simply backed off the two mounting bolts 1/2 turn (equal to 1/2 millimeter), then tightened them back down. This, in essence, allows the auto-spring-loaded adjuster to extend by 1/2 mm. And by tightening them at that extension, it places a very slight positive pressure on the tensioner, thus gently overriding the natural spring pressure.

I've had this same knocking for about 1000 miles. Sounds exactly like what you are all describing. I adjusted the valves, but only 4 were out of spec, and they were slightly tight. While in there, i applied that YouTube mod of tightening the spring by one turn and drilling out the oil hole. Did this on both front and back. The knocking has not only not gone away but has steadily worsened over the last few hundred miles. What is y'all's opinion? Is it still likely that the CCT needs replacement? It certainly sounds like the front one. It has 38k miles. If you say Yes, i'll do it. Just looking for the confidence that seasoned confirmation brings. -- innokente