Bad Lifter and Carbon On Valves After 2000 Miles??

Happy Thanksgiving Everyone!

I had a lifter bleeding down over night on my fresh rebuild, so I yanked the intake and found the offending lifter. It is VERY easy to push down, probably 1/4", while the lifter is on the base of the lobe. That one is obviously bad. The thing is, there are two more on the same side that I can push down, maybe 1/16". All the others are rock hard. No movement at all. Is this normal, or are they getting ready to fail also? I pulled the plugs and they look fine. Some are light brown, Some look almost unused...




Also, looking in the intake ports I see some oily carbon deposits on the valves. It sure seems like a lot for only having 2000 miles on a fresh rebuild with new Stealth heads. Are the seals gone or is some buildup normal??

Bad lifters = ticking noise

Bad valve stem seals = major carbon/
build up like you have.

You know what to fix.. oil

go to a small mechanical cam and be done with the hydraulic lifter blues.

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Also, looking in the intake ports I see some oily carbon deposits on the valves. It sure seems like a lot for only having 2000 miles on a fresh rebuild

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Oil might be getting pulled in thru the lower edge of the valley pan metal gasket up into 1 or more of the intake ports. Improper ring breakin could also be a culprit. Read "breakin secrets" (5 minute read) at www.mototuneusa.com for more info on that subject