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#11
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No, no noise at all. Also, crank was good. No polishing necessary. The rod bearings were caught in time. For me my pan wasn’t leaking, so by needing to replace the bearings, a few thing were replaced preventatively. For you if the pan is leaking, it would make it a great time to go in and replace the bearings. My Indy has strong feelings about getting the oil up to temp before operation.
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02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53 |
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#12
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02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53 |
#13
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But I'm, admittedly, a novice when it comes to engine internals. When I've experienced engine failure... I replace the engine. Only happened on two vehicles though, so again, not an expert.
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2005 X5 4.4i Build 04/05 Maintenance/Build Log Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles) 2006 X5 4.8is Build 11/05 Maintenance/Build Log Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles) 2010 X5 35d Build 02/10 Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles) |
#14
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what i'm wondering is if this might actually just be typical behavior for an M54.
i mean, the cams in my 2003 (205k) were pretty trashed a few weeks ago when i changed them. there had to be a few oil analyses that showed a spike of iron or whatever from that. maybe there are some hot spots on the rod bearings...and maybe that doesn't really matter? i know this is akin to sticking your head in the sand but we don't know. if you read the forums, a spun bearing and completely ruined engine is an absolute certainty within the next 10k miles. fortunately i had planned to get my oil pan gasket done (which i have no interest in doing myself) here soon. SO, i will get them to take a look.
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2005 X5 3.0i - 71k mi (9.2018) -> 81k (9.19) -> 100k 9.21 --------------------------------------------------------------------- SOLD : ( 2003 X5 3.0 - 177k mi (9.2018) -> 186k (9.19) -> 205k (9.21) SOLD : ( 1997 328is Coupe - Hellrot Red SOLD : ( 1988 528e w/ Bullseye s256 / MS2 Extra / GC Coilovers / Yukon Coils ~ 300+ HP |
#15
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My cams were fine a 95,000.
I am thinking maybe some bearings on a small number of builds were/are the issue.
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02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53 |
#16
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I don't have much to add; I have never been able to draw much conclusion from a Blackstone analysis which is why I rarely get them done. But in the interests of contributing to the thread, here is my test I had done about a year ago on my 2003 M54. As the test alludes to, I only had 4800 miles on the oil but I went about 18 months between oil changes, so the oil was very old. Normally I don't do such a long change, but I hardly drive this car at all except during camping season because it's such a gas guzzler.
The only real takeaway I have is that it was OK to run that oil for 18 months with so few miles.
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2003 3.0 5MT Topasblau Purchased in 2016 and surprisingly still running |
#17
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what brand of 5w30 were you using for that sample?
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2005 X5 3.0i - 71k mi (9.2018) -> 81k (9.19) -> 100k 9.21 --------------------------------------------------------------------- SOLD : ( 2003 X5 3.0 - 177k mi (9.2018) -> 186k (9.19) -> 205k (9.21) SOLD : ( 1997 328is Coupe - Hellrot Red SOLD : ( 1988 528e w/ Bullseye s256 / MS2 Extra / GC Coilovers / Yukon Coils ~ 300+ HP |
#18
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That was Mobil 1 5w-40 euro blend full synthetic. Sorry, I cropped the pdf to remove my personal info.
Edit: fixed oil type
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2003 3.0 5MT Topasblau Purchased in 2016 and surprisingly still running Last edited by Bdc101; 07-30-2021 at 04:54 PM. |
#19
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Rod bearings on BMW engines of this era are made up of:
All 3 of those metals are elevated in your sample report - you can draw your own conclusion.
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2004 X5 3.0i Born 02/04 Delivered 03/04 Last edited by dkl; 07-30-2021 at 03:30 PM. |
#20
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So how long do I have? That's what I mean. So what if there is lead, copper, and iron in the sample, do I need to park the car and rebuild my motor right now? In 50 miles? In 50,000 miles? In a year? In ten years? There's no actionable information here because there's no way to determine how much service life the engine has left. This sample was taken 15 months ago, so clearly it had more than 15 months of life left.
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2003 3.0 5MT Topasblau Purchased in 2016 and surprisingly still running |
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