03-16-2018, 10:45 PM | #1 |
Captain
725
Rep 929
Posts
Drives: 2019 F87 M2C, 2023 G87 M2
Join Date: Mar 2018
Location: North America
|
Valve cleaning needed for our engines?
Does anyone know if our engines benefit from any sort of intake valve cleaning? Does the dealer offer anything as regular maintenance to prevent or clean gunk from our intake valves?
|
03-16-2018, 11:46 PM | #2 |
Disrupter
1566
Rep 2,484
Posts |
We will get you hooked up with Stormy Daniels. I hear she is an expert at "intake valve cleaning."
__________________
Disappointing People for Two Centuries; 3 Pedal Fanatic
|
Appreciate
3
|
03-17-2018, 01:54 AM | #3 |
Brigadier General
1622
Rep 3,402
Posts |
Simple answer is no. Unlike the twin turbo N54 engines the flaws that created substantial buildup on the valves has been addressed and is not a significant issue with the N55 engine. Pretty well documented throughout the various threads on other cars that use the N55 engine.
|
Appreciate
0
|
03-17-2018, 09:19 PM | #5 | |
Brigadier General
2316
Rep 4,341
Posts |
Quote:
I know Ford has added Port injection to their V8 motor to reduce this issue (it is now both port and direct injection) but not aware of anything that BMW did on the N55 motors. https://www.youtube.com/watch?time_c...&v=xrLNDgrIw3U I don't believe they they added port injection, oil separator or anything like that to significantly reduce this? Can you please elaborate how the N55 generation of direct injected motors will no longer muck up the valves like the N54? |
|
Appreciate
0
|
03-17-2018, 09:32 PM | #6 |
Captain
725
Rep 929
Posts
Drives: 2019 F87 M2C, 2023 G87 M2
Join Date: Mar 2018
Location: North America
|
But 0w30 is thinner than 5w30... so I would assume based on that reasoning it would be worse... however, I think it has to do more with their NOACK scores and not viscosity... plus the difference between a 0 wt vs 5 wt is only at start up.... from all my reading so far, the general consensus is that the n55 is much less prone to carbon buildup compared to the n54 and that it will take at least 80-100k miles for this to happen...
|
Appreciate
0
|
03-17-2018, 09:46 PM | #8 | |
Brigadier General
2316
Rep 4,341
Posts |
Quote:
Despite NOACK scores though, those only reduce the amount of vapors that make it through. You also have unburned fuel that are part of the Direct Injection problem, not an N54 problem. So again, I am just asking for clarification that BMW has resolved the intake valve direct injection issue? Ford had to add 8 more port fuel injectors to resolve it. I am just curious as to what BMW wizardry was applied to resolve it on the N55? |
|
Appreciate
1
chris7197354.50 |
03-17-2018, 10:32 PM | #9 |
Major General
5865
Rep 6,637
Posts |
|
Appreciate
0
|
03-19-2018, 04:40 PM | #11 |
Captain
725
Rep 929
Posts
Drives: 2019 F87 M2C, 2023 G87 M2
Join Date: Mar 2018
Location: North America
|
I know the n55 engine isn't prone to carbon deposits like the n54 and if it does get any, it will probably be in a long long time.... however, are there any downfalls to using something like the CRC GDI cleaner for the valves say every 40K miles to prevent any long term deposits?
|
Appreciate
0
|
03-19-2018, 06:00 PM | #12 |
Colonel
840
Rep 2,402
Posts |
While that may be true on engines that develop exhaust-side build up, hard running does absolutely NOTHING for the intake backside problems seen on DI engines.
+1 on the more an N54 problem vs. the N55. Haven't seen any bad N55 images yet, and it's been out for quite a while. We'd know it.
__________________
'02 S54 M3 (500/500 GC/Koni)
'08 N54 135 (JB4, DCI, BMW PS/Bilstein B6s, H&R M3 FSB, Strongflex FCABs) '14 N55 X1 (JB4, BMS DP, BMS Intake, Alpina TCU reflash, H&R Sports, Bilstein B6s, E93 M3 RSB, Strongflex FCABs, baby seat) '08 N54 535xi touring (Bilstein B6s, Downpipes, MHD tune, baby seat) |
Appreciate
1
3LiterBeater134.50 |
03-19-2018, 09:02 PM | #13 | ||
Captain
725
Rep 929
Posts
Drives: 2019 F87 M2C, 2023 G87 M2
Join Date: Mar 2018
Location: North America
|
Quote:
Quote:
https://www.***********.com/showthread.php?88316-The-N55-develops-less-carbon-buildup-than-the-N54-but-you-still-need-to-walnut-blast-it-periodically ***** = [Admin Notified] (one word) Based on this, if anyone is planning on keeping the car beyond 100K then I'd say doing periodic valve cleaning through the intake/throttle body with something like CRC GDI cleaner is a good preventative measure |
||
Appreciate
0
|
03-19-2018, 09:20 PM | #14 | |
Lieutenant
321
Rep 487
Posts
Drives: M2CS
Join Date: Oct 2008
Location: Los Angeles
|
Quote:
Tear apart a race engine one day and see how much carbon build up has accumulated. 0, because heat prevents build up regardless of the engine. Glad you're into images. |
|
Appreciate
0
|
03-19-2018, 10:07 PM | #15 |
Major General
5582
Rep 5,385
Posts |
The N55 has been out for 7 years now. There's nothing different about the oil vapor management system in the M2's N55 compared to other N55s. The N55 does require some cleaning but not until 60k+ miles.
|
Appreciate
0
|
03-19-2018, 10:10 PM | #16 |
Lieutenant
321
Rep 487
Posts
Drives: M2CS
Join Date: Oct 2008
Location: Los Angeles
|
That would be true for all street engines and in stop and go traffic.
|
Appreciate
0
|
03-20-2018, 09:24 AM | #17 |
Major General
5582
Rep 5,385
Posts |
Why do you think a DI engine under racing conditions is less susceptible to carbon build up?
__________________
The forest was shrinking, but the Trees kept voting for the Axe, for the Axe was clever and convinced the Trees that because his handle was made of wood, he was one of them.
|
Appreciate
0
|
03-20-2018, 10:35 AM | #18 | |
Colonel
840
Rep 2,402
Posts |
Quote:
Heat, 100% does NOT prevent build up on the back sides of the intake valves. This is a completely different type of carbon buildup vs. what you're talking about (aka what you'd see on an E39 M5, for example). N54 track cars STILL have to have their intake valves cleaned. "Race engines"? Where talking about the N54/N55 here. And you implied taking the car to the track would clean the carbon off the intake valves. That is 1000% wrong. Proof? All of us that have tracked our N54s add still have buildup-including on track-only 1Ms, etc.
__________________
'02 S54 M3 (500/500 GC/Koni)
'08 N54 135 (JB4, DCI, BMW PS/Bilstein B6s, H&R M3 FSB, Strongflex FCABs) '14 N55 X1 (JB4, BMS DP, BMS Intake, Alpina TCU reflash, H&R Sports, Bilstein B6s, E93 M3 RSB, Strongflex FCABs, baby seat) '08 N54 535xi touring (Bilstein B6s, Downpipes, MHD tune, baby seat) Last edited by PrematureApex; 03-20-2018 at 10:40 AM.. |
|
Appreciate
0
|
03-20-2018, 10:44 AM | #19 | |
Lieutenant
321
Rep 487
Posts
Drives: M2CS
Join Date: Oct 2008
Location: Los Angeles
|
Quote:
What proof do you need? You know everything 1000% |
|
Appreciate
0
|
03-20-2018, 10:58 AM | #20 |
Captain
725
Rep 929
Posts
Drives: 2019 F87 M2C, 2023 G87 M2
Join Date: Mar 2018
Location: North America
|
PrematureApex is correct
|
Appreciate
0
|
03-20-2018, 11:39 AM | #21 | |
Brigadier General
814
Rep 3,953
Posts |
Quote:
__________________
2021 M2 Comp Sunset Orange |Black with orange Stitching Dakota Leather|Executive Pkg|DCT
|
|
Appreciate
0
|
03-20-2018, 12:21 PM | #22 |
Captain
725
Rep 929
Posts
Drives: 2019 F87 M2C, 2023 G87 M2
Join Date: Mar 2018
Location: North America
|
Certainly no harm in the occasional "Italian tune up" but likely doesn't do much. But there are many who swear by it. When it comes to carbon build up on valves of a DI engine, it's like atherosclerosis in coronary arteries... virtually everyone gets it regardless of how careful you are, and you can definitely reduce risks, but whatever you do, you will either die of it or die with it.... just take measures to reduce risks of early carbon buildup (good oil and frequent oil changes, Italian tune ups, top tier fuel/additives to keep injectors clean, valve cleaners through air intake) and if you do end up with bad gunk then clean it with walnut blast... meanwhile enjoy and have fun with your n55 because chances are it will outlive you
|
Appreciate
1
jefe2000775.00 |
Post Reply |
Bookmarks |
|
|