Don't forget to change your oil!
#1
Don't forget to change your oil!
We had a car come in for some engine work with a really bad rod knock. So after some tear down, we found that the rod bearings on number 2 were gone and all over the pan in very small flakes. So after some quick addition we found it would be better to just replace the engine with a long block.... jump ahead a bit. We are working on some projects and needed the crank from this motor (which is in bad need of repair), so this gave us the reason to take this motor completely apart (and i mean everything) to figure out why or what went wrong. We took the filter out and it was twisted and looks like it had failed (this is why we only us MINI brand oil filters), so combine an oil interval that was way to long (well over 15K), a failed filter that was not even filtering the oil, a bit of heat and bam, the motor was in need to rebuild. The bearings in the photo are the crank bearings, not the rod bearings. The three-sided bearing locates the crank front to back. As you can see it was moving to one side way too much. One side of the bearing had almost no wear; the other side was half gone. Take a look at what we found, but basically this is proof that you need to change your oil no mater what special oil you run…. And oil services are on special right now. * Wink * Wink *
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The three-sided bearing is the adjustment for the crankshaft end play. Thrust bearing is what American cars call it, I'm not sure what Mini calls it. That engine sure suffered a terrible death...
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#8
the three sided bearing is the crank shaft end play! and the car had around 75K, but i think he was 30K between oil changes (but that is just a guess).
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Huummm...wonder what's up with that. Bought my '05 used used, have changes oil twice. Using non-OEM filters but they look the same coming out as going in (dirt excepted). To me that filter looked either too long or was cocked some way in the housing on installation and got twisted tightening the housing. Either way, don't think that caused to bearing problem.
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yes ever 5K is very good. with a new filter and good oil. not castrol.
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Last edited by Detroit Tuned; 02-07-2009 at 12:23 PM.
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it works, but is not the best oils out there. we use Royal Purple here at the shop since it has shown HP on the dyno (up to 5 HP). just with an oil change. also you want to make sure the oil you use is a full synthetic oil.
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#25
That is some cheap HP Chad. Nothing like 5 HP from changing ones oil. While on the back straight at Mid-Ohio that will be great! When I raced I'd have sold my soul for another 5 HP.
For lots of folks it makes no difference. IMO as long as you are running a high quality full synthetic oil, no matter what the brand & doing timely changes it's all good.
For lots of folks it makes no difference. IMO as long as you are running a high quality full synthetic oil, no matter what the brand & doing timely changes it's all good.