Originally posted by ScottK97SEMTX:
Would oil starvation and/or "crank whip" eat up main bearings too? I thought a flexing/whipping crank would almost have to eat a main bearing first.
In my opinion, oil starvation would affect the rod bearings first/and or the worst since they are last in line to receive oil. Recall the recent updates to the Duratec to address oil aeration. Your thoughts on crank whip primarily affecting the mains seems reasonable.
Originally posted by ScottK97SEMTX:
Procyon - I've always been a bit curious, do you know the specs that SVT sorts cranks too? Did they maybe select to a tighter (maybe slightly off nominal) tolernace that could make the SVT's statisticly more prone to spin a bearing under stress / oil starvation conditions, or is that stupid?
I don't know any specifics of the "hand picked" cranks but I can't see any handpicking causing increased rates of failure. They may pick bearing sizes closer to nominal but they already have 3 grades of main bearing sizes to compensate for that. The only other thing that I can think of would be to pick a slightly off nominal bobweight since the piston has a taller dome (more weight) But maybe they took a little bit of weight out somewhere else to match the regular 2.5 piston.
I think the only thing that makes the SVT more prone to failure is the increased power output and increase in owner flogging (not that there's anything wrong with that
I think that most of the people on this board drive their Duratecs harder than the other 90% of the population. i.e. You always hear about the bad news.
