|
|
06-20-2018, 01:48 PM | #2201 |
Lieutenant Colonel
289
Rep 1,532
Posts |
I am willing to bet that I have seen RB failures on SC engines ("or was supercharged at one point) more than complete stock engines. But you can believe whatever you want.
|
Appreciate
0
|
06-20-2018, 02:12 PM | #2202 |
Private
16
Rep 68
Posts |
Are the 2013 model years pretty much showing the same amount of failure as others? Just hit 20k miles and these threads are convincing me to just get it over with and replace them
|
Appreciate
0
|
06-20-2018, 02:37 PM | #2203 |
Lieutenant Colonel
802
Rep 1,566
Posts |
Yes.
__________________
|
Appreciate
0
|
06-20-2018, 03:06 PM | #2204 |
Lieutenant Colonel
946
Rep 1,932
Posts
Drives: 2013 E92 M3
Join Date: Jul 2015
Location: Richland, Wa.
|
|
Appreciate
0
|
06-20-2018, 03:36 PM | #2205 | |
General
63062
Rep 24,605
Posts |
Quote:
Open each link from the posted bearing failures and check the dates . But your date/failure curve will never be accurate , because you/we have no information about the worldwide bearing failures . Yours would be a Bimmerpost curve .
__________________
"MAX VERSTAPPEN" IS THE 2021+2022+2023 F1 WORLD CHAMPION - #UnLeashTheLion
BPM DEV-Tune & DCT Software-Tune & Servotronic & coding ///Alpine HID Angeleyes ///Oem.exhaust mod. |
|
Appreciate
1
Adrian g.243.50 |
06-20-2018, 08:56 PM | #2206 | |
Lieutenant
178
Rep 591
Posts |
Quote:
|
|
Appreciate
1
///M Power-Belgium63062.00 |
06-21-2018, 04:21 AM | #2207 | |
4-6-8
234
Rep 990
Posts |
Quote:
__________________
M3 E46 PY/Black
S2000 AP2 GPW/Tan |
|
Appreciate
0
|
06-21-2018, 06:55 AM | #2208 | |
Lieutenant
178
Rep 591
Posts |
Quote:
However, I don't think the geography bias (that it's mostly US data point) is particularly problematic unless you think somehow there is something special about m3 being shipped to the US, or there are some special conditions in the US that correlate to the failure. A more likely bias is that the population hang out on the forum might be a population that drives their cars harder, take the car to track etc, compared to general public. Something along that line will be more like to skew failure rate/pattern. But, I am probably more like an average forum guy than the general public anyway... so to some degree, that bias makes the result more relevant to enthusiasts readers... |
|
Appreciate
0
|
06-22-2018, 03:14 PM | #2209 | |
Lieutenant
178
Rep 591
Posts |
Quote:
|
|
Appreciate
2
RedScytheM3394.50 L4ces337.00 |
06-22-2018, 07:52 PM | #2210 | |
Science stuff and stuff
395
Rep 414
Posts |
Quote:
My work involves performing statistical analysis to determine the susceptibility, or risk, that children have of developing a leukemia. You can think of RB failure as a complex disease of a car much like we think of leukemia. Like leukemia in kids, there are many risk factors that predispose the M3 to to this complex state. To save everyone a lecture on statistical power, (appropriate) statistical significance testing, relative risk ratio and odds ratio - if you lack a sufficient population sampling and are missing many critical variables that play into RB failure then your data can only be descriptive (not predictive and certainly not able to make any associations). We can only take what you showed (or will show) with a huge grain of salt. You def cannot say that when you hit a certain mileage that your risk suddenly drops - whether the risk is high or low for a particular car at mile 0, the risk only goes up with time/mileage (increased wear, aging parts, etc) save for cars that just sit on display. I think a more appropriate inference from your histogram is that although RB failure has the potential to occur at any mileage interval on your x axis, the frequency is highest in mid mileage cars and the reason for that is poorly understood. As these cars continue to live and die we will continue gathering data, and maybe at some point we could have enough to do a proper retrospective study. I'm glad someone is putting the data into a figure though. Seeing a visual representation of the available data is certainly more compelling that just seeing the total number of events. I'm sure there's a dissertation on this somewhere, and if not then soon lol (or maybe for another car). |
|
Appreciate
3
|
06-22-2018, 08:26 PM | #2211 | |
Lieutenant
178
Rep 591
Posts |
Quote:
|
|
Appreciate
0
|
06-30-2018, 05:07 PM | #2212 |
General
63062
Rep 24,605
Posts |
codinge90 for the list => http://www.m3post.com/forums/showthread.php?p=23399115
__________________
"MAX VERSTAPPEN" IS THE 2021+2022+2023 F1 WORLD CHAMPION - #UnLeashTheLion
BPM DEV-Tune & DCT Software-Tune & Servotronic & coding ///Alpine HID Angeleyes ///Oem.exhaust mod. |
Appreciate
1
aus889.50 |
07-01-2018, 06:56 AM | #2213 |
General
63062
Rep 24,605
Posts |
New_m3 for the list => # 81 https://www.m3post.com/forums/showth...1446659&page=4
__________________
"MAX VERSTAPPEN" IS THE 2021+2022+2023 F1 WORLD CHAMPION - #UnLeashTheLion
BPM DEV-Tune & DCT Software-Tune & Servotronic & coding ///Alpine HID Angeleyes ///Oem.exhaust mod. |
Appreciate
1
aus889.50 |
07-02-2018, 09:20 PM | #2214 |
Science stuff and stuff
395
Rep 414
Posts |
For codinge90, I saw a thread where he got a tune and then 2 months later after running on E85 car started acting up. Wonder how this factors in.
http://www.m3post.com/forums/showthread.php?t=1464063 |
Appreciate
0
|
07-02-2018, 09:55 PM | #2215 |
Science stuff and stuff
395
Rep 414
Posts |
Also, should we reference the videos in codinge90’s thread on the first page of this thread as good examples of ‘bad engine sounds’?
Also, cool pic of Ambiorix! |
Appreciate
1
///M Power-Belgium63062.00 |
07-03-2018, 09:23 AM | #2216 |
General
63062
Rep 24,605
Posts |
__________________
"MAX VERSTAPPEN" IS THE 2021+2022+2023 F1 WORLD CHAMPION - #UnLeashTheLion
BPM DEV-Tune & DCT Software-Tune & Servotronic & coding ///Alpine HID Angeleyes ///Oem.exhaust mod. |
Appreciate
0
|
07-11-2018, 10:39 AM | #2217 |
General
63062
Rep 24,605
Posts |
GSTE34 for the list => # 17 https://www.m3post.com/forums/showth...4#post23443094
__________________
"MAX VERSTAPPEN" IS THE 2021+2022+2023 F1 WORLD CHAMPION - #UnLeashTheLion
BPM DEV-Tune & DCT Software-Tune & Servotronic & coding ///Alpine HID Angeleyes ///Oem.exhaust mod. |
Appreciate
0
|
07-15-2018, 06:25 PM | #2218 |
Second Lieutenant
266
Rep 298
Posts |
replaced rod bearings had dipstick installed
Posted earlier in this thread about getting rod bearings replaced because i thought i was hearing ticking noise related to failing rod bearings. Fast forward couple months, had rod bearings replaced and also had the engine mounts replaced and oil dipstick installed. got the car back did the break in, didnt go over 3k rpm for 1000 miles and just did an oil change after about 1400 miles and found alot of aluminum shaving in the oil filter. i looked at the oil that came out of the engine and did not see any shavings in the oil. dumped couple quarts of cheap 5w30 and let it run through before refilling with fresh 10w60. The car also ran fine for the last 1400 miles except for a higher pitched metalic whine but no knocking. im hoping the whine is coming from the oil dipstick sitting against the heatshield or due to machtsnell air filter i installed around the same time. im guessing whoever drilled the hole in the oil pan for the dipstick bung forgot to clean the shavings out of the pan. I was pretty upset after seeing this and asked the shop to do an engine flush and then replace the oil with fresh oil again, however i dont trust the shop at this point since this is not the first time they screwed up. I was hoping if i do another oil change after a couple hundred miles that should flush anything else out. Any ideas?
https://photos.app.goo.gl/gt4428qeAjM6hTYA9 https://photos.app.goo.gl/7AVrGAJAyY9swJUA6 https://photos.app.goo.gl/YAUjXFMAWYAjuuEJ8 |
Appreciate
0
|
07-15-2018, 08:18 PM | #2219 | |
Major
337
Rep 1,489
Posts |
Quote:
|
|
Appreciate
0
|
07-15-2018, 08:27 PM | #2220 |
Lieutenant General
5212
Rep 10,594
Posts |
If the shop did the rod bearings, it would have had the pan off when drilling for the manual dipstick so there should be no shavings. If not drilled off the engine, then I can understand shavings getting in the pan. Many shops are not as careful as they should be, which is why I do my own work — most jobs require more care than skill and I care more about my car than most shops.
|
Appreciate
0
|
07-15-2018, 08:31 PM | #2221 |
Second Lieutenant
266
Rep 298
Posts |
Im hoping i dodged a bullet here. i didnt see any metal in the oil as far as i could tell. I started hearing a metallic fluter after i got the car back but it runs good. i bought an oem air filter to see if sound was due to after market air filter. i think im going to bring it back to the shop and ask them to drop the pan, clean pan, flush the system and replace with fresh oil.
|
Appreciate
0
|
07-15-2018, 09:25 PM | #2222 | |
Second Lieutenant
266
Rep 298
Posts |
Quote:
|
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|