Have an '05 Rubi with 84k, I thought I better check the OPDA and it has been pulled or replaced because there are timing marks in yellow paint pencil on it. The gear shows wear but spins easily with no slop, etc. The cam gears sure shows some wear also but I don't really know what's excessive? I assume once the cam gear has wear, it's just gonna keep wearing out the OPDA gear(s). I went ahead and ordered a Crown unit. Should I go ahead and replace it or wait for more signs of wear, etc. I know there is tons of info about this but wanted a similar member's opinion.