M4 Engine Failure

M-Pilot · 10-10-2016, 02:20 AM

Quote:

Originally Posted by shahano

Goodluck OP.
Can anyone give me a detailed explanation of exactly what a spun crank hub means?

I'm sure Google can.

Panda f80 · 10-10-2016, 04:48 AM

Quote:

Originally Posted by wakdady

was that the guy who was doing an HPDE when the engine blew?
if so, I read into that one and apparently he also had ran over something and the oil pan got torn off the engine and subsequently replaced, way before the engine blew. these bearing tolerances are pretty tight, you run these things without oil for 30 seconds and it's pretty much toast.

so if the car didn't have the jb4, would it still not have been covered?
to dealer would have had their regional engineer dig through the data to see what actually happened when the thing spun, btw.

Yes!! I believe so, that it is the same guy. The point I'm trying to make is how BMW is expecting to pay all this money for a M'! But, they expect us not to touch it. We bought M's not a Prius!!

LOW4LYF · 10-10-2016, 06:36 AM

Quote:

Originally Posted by jgraveskc

The car will not be warrantied. I was told that when a vehicle arrives at this dealer with an issue like this, BMW in Germany will request they upload the contents of the car's "black box" memory. The tech cannot see what is in it, but mentioned it at least stores RPM history, throttle, temperatures and boost pressure. So even if the tune is removed, it would be rather apparent the car was running a tune due to that data. How the dealer treats that would vary I assume, but in my case, I left the JB4 in-place so there is no real argument.

My words.... sorry to hear!

Bmwlmr99 · 10-10-2016, 06:49 AM

Quote:

Originally Posted by YasM3

It does not just happen for no reason. Something causes it to happen. Obviously adding power with aftermarket tuning devices can increase the chances because you are putting a much higher stress on the crank under certain circumstances. I.E Rapid RPM changes, downshifts, misshifts, kickdowns etc etc.

However, the most common occurrence would be a misshift. You would not have to be very abusive to make this happen either. It can happen in an abusive manner or just in an "oops" situation when you wanted to shift into 4th @ 75mph but accidentally went to 2nd and let the clutch out. In the case of a DCT car, where you cannot misshift. The repeated use of the "kickdown" can do this. There is a RAPID shock to the crank when you use the kickdown since there is a sudden and very fast change in engine RPM. This puts HUGE amounts of stress at the crank. If the crank was keyed in this engine. I would bet, it would tear the key right off, explode the sprocket and possiblly rip the front of the crank snout off.(just as it is doing with the aftermarket keyed cranks we have seen, it fails EXACTLY like that) BMWs design, without a key, is a failsafe to eliminate that from happening, the damage is lesser. Its designed this way for a reason. It is NOT a design flaw.

People just refuse to believe that and want to point fingers @ BMW. Like I said. Once people understand how all of the mechanics of an engine works, then they can understand what is going on.

would more than likely would throw a rod with a missed down shift like that

Bmwlmr99 · 10-10-2016, 06:50 AM

How much boost is he running , compared to stock?

infamousdiz · 10-10-2016, 07:52 AM

Quote:

Originally Posted by Bmwlmr99

How much boost is he running , compared to stock?

stock is 14-17 likely 22-28

m4282 · 10-10-2016, 07:54 AM

Quote:

Originally Posted by CaryTheLabelGuy

Quote:

Originally Posted by mazaa93

Hey mate, is there any way of telling which block I have in my M4? Curious if it has the new or old block.

I placed the order around mid December, arrived in Australia mid-April.

Do you have a non-ZCP M4? Look on your door sill decal and it'll tell you the production date. That should give you a decent idea.

If you have a ZCP, you got the revised bed plate.

So I guess I'm totally effed then for the future ..... my production date was 7/15

Someone? · 10-10-2016, 08:09 AM

Quote:

Originally Posted by Bmwlmr99

How much boost is he running , compared to stock?

Stock is 18.1psi so going to 22-23psi ISN'T any kinda big jump or ANY REASON for an Engine to Fail, Period.
The F8* isnt good enough stock IMO, its below average stock, if its good enough for Some, well good for you, but you probably dont need an M.

Jockey · 10-10-2016, 09:30 AM

Quote:

Originally Posted by ibmike

Quote:

Originally Posted by Bmwlmr99

How much boost is he running , compared to stock?

Stock is 18.1psi so going to 22-23psi ISN'T any kinda big jump or ANY REASON for an Engine to Fail, Period.
The F8* isnt good enough stock IMO, its below average stock, if its good enough for Some, well good for you, but you probably dont need an M.

The stock engine is good enough for me.

Guess I should've bought a Prius

BitchinManWheels · 10-10-2016, 10:02 AM

Sorry to hear about this mess OP.
Please let us know what's the total bill when you get your car back.

ross22 · 10-10-2016, 10:43 AM

Bummed to hear about the engine failure. Thanks for posting details on diagnosing, etc. I hope the repair can be made in such a way the car performs to your liking once again, would hate to think that this car must only be run in stock form.

SakhirM4 · 10-10-2016, 10:56 AM

Quote:

Originally Posted by ibmike

Stock is 18.1psi so going to 22-23psi ISN'T any kinda big jump or ANY REASON for an Engine to Fail, Period.
The F8* isnt good enough stock IMO, its below average stock, if its good enough for Some, well good for you, but you probably dont need an M.

That is just so much crap!!!

infamousdiz · 10-10-2016, 11:00 AM

BMW has covered people with modded cars before. Its a case by case bases thats why im surprised OP didn't at least try. and your dealer sucks balls, many of us have dealerships where they do everything they can and if corporate denies it so be it. let them figure it out, whats the worst case scenario they deny his claim and he still in the same position. I would also guess his drive train warranty no longer exists. time to sell and move on

Polo08816 · 10-10-2016, 11:47 AM

Quote:

Originally Posted by infamousdiz

BMW has covered people with modded cars before. Its a case by case bases thats why im surprised OP didn't at least try. and your dealer sucks balls, many of us have dealerships where they do everything they can and if corporate denies it so be it. let them figure it out, whats the worst case scenario they deny his claim and he still in the same position. I would also guess his drive train warranty no longer exists. time to sell and move on

A used M3 with engine that is in need of a very expensive repair and a voided powertrain warranty isn't going to be worth too much either. Hard to "move on" from that IMO...

MNoob · 10-10-2016, 11:52 AM

Quote:

Originally Posted by ibmike

Quote:

Originally Posted by Bmwlmr99

How much boost is he running , compared to stock?

Stock is 18.1psi so going to 22-23psi ISN'T any kinda big jump or ANY REASON for an Engine to Fail, Period.
The F8* isnt good enough stock IMO, its below average stock, if its good enough for Some, well good for you, but you probably dont need an M.

One of the more absurd posts...

m4282 · 10-10-2016, 12:10 PM

Quote:

Originally Posted by ibmike

Quote:

Originally Posted by Bmwlmr99

How much boost is he running , compared to stock?

Stock is 18.1psi so going to 22-23psi ISN'T any kinda big jump or ANY REASON for an Engine to Fail, Period.
The F8* isnt good enough stock IMO, its below average stock, if its good enough for Some, well good for you, but you probably dont need an M.

Is this English? I can't follow the logic here - maybe it's just me....

krotondo · 10-10-2016, 12:13 PM

Quote:

Originally Posted by ibmike

Stock is 18.1psi so going to 22-23psi ISN'T any kinda big jump or ANY REASON for an Engine to Fail, Period.
The F8* isnt good enough stock IMO, its below average stock, if its good enough for Some, well good for you, but you probably dont need an M.

hahahah

Someone? · 10-10-2016, 12:47 PM

Yah sorry guys, i should say its my opinion that the car needs be better then it comes then stock, If you like it stock thats fine, who im i to judge, but i think a lot more people mod there cars then not.

SakhirM4 · 10-10-2016, 12:50 PM

Quote:

Originally Posted by ibmike

Yah sorry guys, i should say its my opinion that the car needs be better then it comes then stock, If you like it stock thats fine, who im i to judge, but i think a lot more people mod there cars then not.

More people on this forum do, but as a general rule that is not true. Many people are very satisfied with what BMW produces.

m4282 · 10-10-2016, 01:08 PM

Quote:

Originally Posted by SakhirM4

Quote:

Originally Posted by ibmike

Yah sorry guys, i should say its my opinion that the car needs be better then it comes then stock, If you like it stock thats fine, who im i to judge, but i think a lot more people mod there cars then not.

More people on this forum do, but as a general rule that is not true. Many people are very satisfied with what BMW produces.

I agree- the biggest issue is not power but suspension for me....

Agamemnon · 10-10-2016, 01:54 PM

I guess I should be in a Prius. Honestly, the car has way more power than I could ever really use on a public road. I do not track as there are no worthwhile facilities around here. There are some private track clubs being developed but I think it is out of my income bracket.

JoeyBananas · 10-10-2016, 03:36 PM

Quote:

Originally Posted by ibmike

Yah sorry guys, i should say its my opinion that the car needs be better then it comes then stock, If you like it stock thats fine, who im i to judge, but i think a lot more people mod there cars then not.

Please please!!!!!!!

ITS THAN & THEIR

10-10-2016, 06:50 AM	#93
Bmwlmr99 First Lieutenant 209 Rep 314 Posts Drives: Bmw m4 Join Date: Jul 2016 Location: Texas iTrader: (0)	How much boost is he running , compared to stock?
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10-10-2016, 10:02 AM	#98
BitchinManWheels Lieutenant 344 Rep 573 Posts Drives: Dinan M4, Z4, X5, Raptor Join Date: Apr 2012 Location: Shavertown, PA iTrader: (0)	Sorry to hear about this mess OP. Please let us know what's the total bill when you get your car back. __________________ "When you're racing, it's life. Anything that happens before or after is just waiting."
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10-10-2016, 10:43 AM	#99
ross22 Private 25 Rep 61 Posts Drives: N54 + S55 Join Date: Jan 2015 Location: Houston iTrader: (1) Garage List 2016 BMW M4 [0.00] 2007 BMW 335 [0.00]	Bummed to hear about the engine failure. Thanks for posting details on diagnosing, etc. I hope the repair can be made in such a way the car performs to your liking once again, would hate to think that this car must only be run in stock form.
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10-10-2016, 11:00 AM	#101
infamousdiz Major 603 Rep 1,206 Posts Drives: (17 X5M)gone 2018M3CS HERE Join Date: Jun 2014 Location: Connecticut iTrader: (1)	BMW has covered people with modded cars before. Its a case by case bases thats why im surprised OP didn't at least try. and your dealer sucks balls, many of us have dealerships where they do everything they can and if corporate denies it so be it. let them figure it out, whats the worst case scenario they deny his claim and he still in the same position. I would also guess his drive train warranty no longer exists. time to sell and move on __________________ I didn't know I couldn't do that. But I did know I couldn't do that.
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10-10-2016, 12:47 PM	#106
Someone? Perception is King 131 Rep 1,703 Posts Drives: M4 Join Date: May 2013 Location: Michigan iTrader: (8)	Yah sorry guys, i should say its my opinion that the car needs be better then it comes then stock, If you like it stock thats fine, who im i to judge, but i think a lot more people mod there cars then not. __________________ Perception and Reality are Two totally different Things.
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10-10-2016, 01:54 PM	#109
Agamemnon Captain 175 Rep 646 Posts Drives: 2016 m3 ss2 zcp full leather Join Date: Dec 2012 Location: Richmond BC iTrader: (0)	I guess I should be in a Prius. Honestly, the car has way more power than I could ever really use on a public road. I do not track as there are no worthwhile facilities around here. There are some private track clubs being developed but I think it is out of my income bracket.
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