Bradness, how do you know they are oiling failures, what confirms this when you tear them down? Can a spun bearing from crank whip look the same?
I have been looking at all these reports for a year as best I can. I think some cases certainly sound like oil related - happened during a turn, oil light came on, etc. Several of these reported low oil in pan but not all. But greater than half occured with no hard right turn (some were hard left turn) or high RPM invoked. Just reportedly cruising. Hard to say how accurate the reporting is but many of these cases do not sound oil related but I think alot of people, including dealers ASSUME its oil related. I personally think we have good evidence that harmonics is playing a role here - enough that Ford actually changed the damper.
Would like to know more about the Roush testing ie. 1/4 quart oil in pan at 5000 RPM. I assume this is at SUSTAINED 5000 RPM. The heads may then be full of oil so that at higher RPM there is still the same amount in the pan?? So, how much oil at 7000 RPM. How much oil during brief spins to 7000 RPM? I suspect that typical brief runs through the revs are OK but sustained RPM >5000 PLUS a hard right turn (to get rid of that little oil around the pickup) = problems. I bet that for all but extreme roadrace duty, the extra 1/2 quart in the pan solves the problem as Roush suggested. But I would LOVE someone from Roush to comment...
And thanks for hooking me up with the dual mode Aussie..
