You do realize that Honda recommends replacement every 7 years or 100K miles?? I'm not saying that I don't believe you, but it does sound a little exaggerated. If what you said here is true, again, I'm not saying that I don't believe you, you have somehow managed to go way past any expected life expectancy for those timing chains. I have the 2.4 four cylinder, and have had the VTC rattle on cold starts for an embarrassing amount of time, and have about 96K miles on the car. Obviously, I'm well beyond the 7 year mark for the timing chain, but I'm going to be replacing the VTC actuator in the very near future, and as long as I have everything open, I'm going to be replacing the timing chain as well. You might want to watch this videoWhile the timing belt in the J motor may brake when not properly maintained, I've been around the Honda K motor with a timing chain for at least 19 years and nearly a million miles on it in my immediate family and have never seen a timing chain break. My son has gone 240K miles on one and 280K miles on the one after that without any issues. It's an interference motor where at one point the piston or the valve may occupy the same space.