Ive been reading up on this issue, thought I would get your opinions if you think Ill be ok with trying a new seal. I believe this was a Felpro I tried using, but I had scratches also. Not only on the wall, but from getting a screw in to deep and bottoming out. What can I say, it was a frustrating day working on the car. But to make myself feel better, I will go with the "I think it was already like that and it was why it was leaking in the first place" story. Im not totally sure of the sleeve process or if I need to go that route, but I take it I would need to pull the back valve cover and that cam housing back there? Or would that just be a slide in type deal from where I am at now? Basically, if this was you, would you think scotchbright'ing those scuffs down and trying a new seal would hold? Thanks much.