What kind of car(s).........

[*Wyche'sWarrior*]

(04-06-2017, 02:22 PM)Au165 Wrote: Yep pretty much. It creates a rattle at start up that is loud and annoying, but Honda claims is causes no engine damage. I have had it for close to 70k miles now and doesn't seem to be doing anything bad, but it appears it has been a known issue since 2008 on various 4 cylinder motors and Honda has never fixed it. The lack of transparency about this issue and the fact they continue to put a defective design on the road almost 10 years later makes me not want to do business with them anymore.

I hear you on that.  It won't do anything too bad, so long as it doesn't totally fail and sling the cam chain off.  What you are hearing most likely is the cam chain slapping the bottom side of the valve cover....at least that's what I found on my old VW.  Once the oil pressure rises, the actuated tensioner spreads open as it's designed and puts proper tension on the cam chain. The 1.8 turbo that VW used in the early 2000s would do this, but only at a warm idle. Under load, or with colder, thicker oil, it would smooth right out.