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Did the oil analysis include the acceptable range for Lead? Last one i has said 1ppm is the limit and the engine I was testing had 74, 80 and 33 (was the race car, tested from brand new run in engine). It may not help to tell you the engine didn't last long, but they never did back then -
My engine has only an oil pressure switch from factory and I've installed an after market sensor that will alert me to pressure loss (https://www.sau.com.au/forums/topic/484431-my-bmw-335i/page/3/) . These engines can definitely feel long left/right handers which is why I added this sensor. There are no other symptoms at all. No strange noises (in fact after the turbos were replaced the mechanic made a note of how sweet the engine was running), no smoke, no glitter in the filter, nada. I'm just a stress head with car issues, I hate there being anything at all wrong with my cars, even if its basic. I just immediately get anxious and start thinking about catastrophic failure. -
Do you know where the EPS module will be located? And also the diagnostic connect located under the dash? -
Well, yeah, there is a (very thin) layer of soft lead on the surface of bearing shells to provide that first "cushion" against physical contact. Just because it is wearing off doesn't actually mean that the engine is dying. Of course, it can mean that the engine is dying. If the engine is making no noises and the oil pressure is (mostly, as in most of the time) fine, then it could just be suffering under particular conditions. That could be startup, or maybe at some point in the normal operation cycle - or maybe the Beemer engine suffers under long left hand bend (see, highway on ramp) and the pressure drops. You'd need to try to work out if any such thing is happening and then determine if you need a bigger oil pump, or an Accusump or something. -
I'm reading that lead is likely from bearings. Can these be caught before it's too late or is it doomed already?
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