2006 Chrysler 300 2.7L oil leak
 

Hello all. Brand new here. I have searched through the forums but could not find an answer. I have a 2006 300 2.7L. About 2 years ago I changed out the timing chain and components. I noticed an oil leak on the primary timing chain tensioner cover plate. My question is would it safe to just remove the cover plate and change out the O-ring or do I need to remove the intake, right head cover and reset the tensioner? Thank you in advance for your help.