yes I did.GT-R said:http://www.nissanperformancemag.com/august04/oil_change/
mike did you write this for the nissan mag?
chimmike said:yes I did.
and yes, after eliminating most other possible causes, i really think the UR pulley was a factor in the bearings spinning. Mind you it was the 2 crank bearings closest to the pulley. Every rod bearing was fine.
Yep, most people say well everything is internally balanced so it won't hurt....well it may be balanced but there's lots of harmonics going on too.....which people don't seem to grasp. I mean, why build a stock crank with a 2piece design with a tiny rubber section if it isn't used for anything, it would be cheaper to build a single peice crank.chimmike said:the natural frequency thing is what rings with me. Perhaps the vibration frequency under the extreme load from the turbo setup is what caused the bearings to spin.....oh well.....all I know is, for my peace of mind, I'm willing to lose 3-5 hp with the pulley (I can get it back just by bumping boost 1psi or so)
hmmm... Very nice article, with good pics and all, professionally done!chimmike said:yes I did.
My guess is to help let the engine cool down more naturally....dunno, just a guess.Tweeek said:hmmm... Very nice article, with good pics and all, professionally done!
However, I was wondering why you said this: "Make sure the car has been sitting for at least a couple of hours (or 1, if you're in a rush)"
I was always told (and made perfect sense) that when the oil is hotter, you've suspended more "junk" in it, therefore draining it out gets more out that letting is sit, get cold, particles fall to the surfaces (not just the bottom where the drain plug is) and you've not done the best you can do. I usually have two quarts of standard oil (warmed, of course) to flush the engine with during changes.. but that's a little much.