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Hello everyone, enclosed is my analysis. I use Motul X-Power 10W60 and it is the second analysis after an engine overhaul (Nickies, closed deck, Hartech-System). The mileage of the new engine is now 23,300km, the analysed oil has 9,000km. Apart from the copper content, nothing worries me, the analysis shows 70ppm copper (!!) as normal. Copper comes from the crankshaft bearings and i am worried, it's heavy wear?! What is your opinion?
Forgot to mention: The first analysis was similar, exept copper was 80ppm and they recommended to change the oil.
Hello everyone, enclosed is my analysis. I use Motul X-Power 10W60 and it is the second analysis after an engine overhaul (Nickies, closed deck, Hartech-System). The mileage of the new engine is now 23,300km, the analysed oil has 9,000km. Apart from the copper content, nothing worries me, the analysis shows 70ppm copper (!!) as normal. Copper comes from the crankshaft bearings and i am worried, it's heavy wear?! What is your opinion?
Forgot to mention: The first analysis was similar, exept copper was 80ppm and they recommended to change the oil.
I would reach back out to Hartech or maybe Jake or Charles will chime in here. I'd think that number that high in the second oil change is concerning too, but they're the experts.
Before you go too deep here, I'd first verify fuel trims. If they look ok, then resample next oil change. If the fuel trims are off, I'd first start with smoke testing the engine and go from there.
LTFT are 4.7 on bank 1 and 1.6 on bank 2. I believe I pulled the correct data. The other option I saw was Furl Trim mean values, but based on the video on the LN YouTube channel I believe LTFT is what you were directing me to check.
Hello everyone, enclosed is my analysis. I use Motul X-Power 10W60 and it is the second analysis after an engine overhaul (Nickies, closed deck, Hartech-System). The mileage of the new engine is now 23,300km, the analysed oil has 9,000km. Apart from the copper content, nothing worries me, the analysis shows 70ppm copper (!!) as normal. Copper comes from the crankshaft bearings and i am worried, it's heavy wear?! What is your opinion?
Forgot to mention: The first analysis was similar, exept copper was 80ppm and they recommended to change the oil.
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I would reach back out to Hartech or maybe Jake or Charles will chime in here. I'd think that number that high in the second oil change is concerning too, but they're the experts.
I have received an explanation. "The bearing cage of the special IMS-bearing is made of brass. The main bearings are not affected, wear would be seen in increased tin and lead contents."
That is first of all conclusive. Now brass is an alloy of copper and zinc. The oil itself, of course, has a high proportion of zinc, so you only see the wear in the copper-content. If you knew the alloy of the cage and there was no zinc in the oil, you would then certainly be able to see a proportionality in the values -- if it was the cage. For interest, I could analyse a fresh oil sample for zinc to get the zero condition...It is a very exciting topic ;-)
I have received an explanation. "The bearing cage of the special IMS-bearing is made of brass. The main bearings are not affected, wear would be seen in increased tin and lead contents."
That is first of all conclusive. Now brass is an alloy of copper and zinc. The oil itself, of course, has a high proportion of zinc, so you only see the wear in the copper-content. If you knew the alloy of the cage and there was no zinc in the oil, you would then certainly be able to see a proportionality in the values -- if it was the cage. For interest, I could analyse a fresh oil sample for zinc to get the zero condition...It is a very exciting topic ;-)
I would reach back out to Hartech or maybe Jake or Charles will chime in here. I'd think that number that high in the second oil change is concerning too, but they're the experts.
70ppm is bad even for the first used oil sample out of a rebuilt engine. On a healthy engine copper levels should be a very low single digit figure.
70ppm is bad even for the first used oil sample out of a rebuilt engine. On a healthy engine copper levels should be a very low single digit figure.
Tanks for your answer, I completely agree and will trend it, this is the only thing I can do for now. But there are no other values that bother me, copper is the "only" one. As mentioned, the explanation/root cause would be the brass-cage of the new IMS; the engine was rebuilt by Cartronics who use the Hartech-method.
Looks good but it's a little bit puzzling that the viscosity @ 100C is so high 14.4 cSt -- specifically that it is higher than the virgin sample at 14.0 cSt.
03-14-2022, 01:21 PM
