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Metal In Oil, Yeeeew.

CEF33Y

By CEF33Y,
in Engines & Forced Induction

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CEF33Y Experienced

CEF33Y

Posted
Posted

So guys,

Did an oil change on my cefiro, and found this in the drip tray when I was draining it. (tray was spotless before dropping oil)

IMG_5369_zpshywyqxvp.jpg

IMG_5370_zps6xm5n8hm.jpg

IMG_5371_zpszr0xblud.jpg

The thing is, apart from a slight lifter tick on stone cold starts the car has zero engine knocks/noises. Can hear injectors over everything else.

50-60psi oil pressure straight on start up, warm oil pressure at idle of 20psi. When on the track copping a caining the oil pressure at idle sometimes drops to 10-15psi. (with the car idling at 500rpm)

Has been the same for the entire time I've had the car on the road. (almost 3 years)

Oil changes never past 5000km,

Always used motul 10-40w.

Next thought is that its something from the turbo, but again, no noises, still boosting fine. (hypergear highflow, never over 20psi, running supplied oil feed hose, stock drain.)

Yet to pull anything apart turbo wise, but am going to pull turbo oil drain off, and see if I can find any evidence, then check shaft play.

I assume the filter would be stopping most of it, but I really don't want shit like this floating around in the oil, plus want to fix the issue before it becomes bigger.

So, with that amount of metal in the pics above, if it's coming from an engine bearing, would you expect it to be knocking?

Anyone had a turbo fail and experience similar?

Have my RB20 days come to an end and now have the perfect excuse to go RB25det NEO? haha.

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gtr jet Veteran

gtr jet

Posted
Posted

Same thing happened when I changed the oil in my Falcon the other day. I just through it in the she'll be right basket.

It still see's limiter daily and sounds fine but if you;re really worried get the oil tested or take it somewhere to have them listen for knock.

R_34 Community Regular

R_34

Posted
Posted

Looks like copper colored, it's amagnetic so a magnet won't do anything about them.

If you kept the old oil, you still can do an used oil analysis that will tell you what's going on but with the shape and color of the parts we see, it's most likely the bottom end which is going. :(

If you get rid of the oil you'll need to run the fresh oil for 3000 km before doing an oil analysis.

CEF33Y Experienced

CEF33Y

Posted
  • Author
Posted

Yeah I've still got the old oil, unsure what an analysis would tell me, unless the thrust bearing is a different material to a big end bearing?

Couple of guys have suggested thrust bearing, will check endfloat this weekend. Still zero audible (by ear) noises.

Did check turbo, looks all ok.

Should just Yolo it, it is only an RB20, haha.

Cheers for the replys

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