1.176 in

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Resurrected 2005 Liberty Sport CRD
Canadian DRL mod

CRD Motor/Timing Pics
http://www.flickr.com/photos/68442076@N02/sets/72157629389449367/

It's your engine, I can't tell you how to fix it, I just disagree with your solution, I'm allowed that right. I think that probably the only 2 people on this board (That still openly talk to people because of ignorant replies like this) that have had this particular engine apart more than I have is Sir Sam and Geordi, outside of that I know this particular italian mistress pretty well and have rebuilt the top and bottom of it, thank you very much.

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Silver 2006 KJ 2.8L CRD Limited:
GDE ECO Tune / Fumoto Valve / E-Tecno GX3123 7v Glow Plugs / 2nd Gen Fuel Head / Mishimoto RED Hoses / Rockers/Lifters @ 114k / Hayden FC + 11 Blade Nylon / Sears P1 Battery / Transgo 45RFE-HD2 Reprogramming Kit / Timken Front Bearings

I've read this with interest. I hope you don't mind my input. Not entering the "debate" which is healthy.
Indeed rubber will cut steel/iron - have seen it before in hostile/faulty running situations. It is automotive and not necessarily inferior just designed for the job at hand.
I would go about it differently but that is an individual choice.

I would ask if you have checked that the lubrication system is delivering adequate oil to the top end. Why did you get the failure?
What strikes me as odd is that I am reading this as both(?) cam shafts have a deep groove therefore there has to be a cause.

I would also suggest checking that the journals in the rocker are in alignment with a good straight edge and engineers blue.
If one is worn to excess then it may be worth replacing the rocker cover even if you do elect to sleeve you seal area.

I see why you are looking to do this as the camshafts are USD225 ea to replace but ask is it the root cause for scoring as you describe.

What is the condition of the journals in the cover?
Is it supported in its entire length so as not to flex?

Did the seal lip go really hard? - I don't expect you have access to a durometer but this implies either abrasive in the seal lip or a distinct lack of lubrication to the top end.

With respect would it also be worth "micing" the rocker cover journals to check for true - every 15 degrees circumferentially? They may have an ovate wear pattern causing the offset.

As these run in the cast aluminium and if they are running out it could also cause flex at the seal.

I could suggest more but that is enough for now.
Good luck

I am sorry if I offended anyone: but after being in the field for 50yrs(see my intro) I have seen many parts worn in this way. No offence was ment Hexus, and you absolutely have the right to disagree it is even welcomed. But in this case all I was asking for was a size. The reason I was replacing the head bolts was preventive I plan to go with the GDR hot tune and do not want head gasket trouble. The 2.8L is running great. I found no rocker damage or abnormal wear, it's running much better since the intake and intake port cleanup, that will be the 2nd time I have had the engine apart and all inside looks great. The camshaft seal wear I consider normal for an engine with 110000 mi. The cam seals are now leaking beause I replaced them they were not leaking before, but alas the new seals need a new surface. thus the speedy-sleeve part # 99122 I will keep you posted if I can. As you can see this post reply is from X-TECH and I have been blocked from the lost jeeps forum! This post was my FIRST ever on any forum and to be BLOCKED really shocked me. Many thanks to EAB and XJET and all the rest who to part in my first post.