Melted piston cylinder 3

Maxf80M3 · 11-18-2017, 07:55 AM

During my s65 swap took a closer look at the motor we removed . Seems like cylinder 3 melted and disintegrated. Was picking pieces from the oil pan. Interesting enough the rod bolts and bearings are still intact . Cause ?? Lean condition ? Detonation? Bad gas ?? All this car had was a tune and a crank pulley. Went kaboom at 150km .

Duk996 · 11-18-2017, 08:29 AM

Is that oil milky? Even if it is I still got nothing. That's insane.

Maxf80M3 · 11-18-2017, 08:30 AM

Quote:

Originally Posted by Duk996

Is that oil milky? Even if it is I still got nothing. That's insane.

Thats oil and coolant .

Duk996 · 11-18-2017, 08:32 AM

Quote:

Originally Posted by Maxe93

Quote:

Originally Posted by Duk996

Is that oil milky? Even if it is I still got nothing. That's insane.

Thats oil and coolant .

I just noticed, it's supercharged? Probably detonation then...could have been due to all kinds of stuff, bad gas, bad injector, etc.

Maxf80M3 · 11-18-2017, 08:33 AM

Quote:

Originally Posted by Duk996

Quote:

Originally Posted by Maxe93

Quote:

Originally Posted by Duk996

Is that oil milky? Even if it is I still got nothing. That's insane.

Thats oil and coolant .

I just noticed, it's supercharged? Probably detonation then...

This one wasn?t supercharged , my e93 is.

This car had a tune and crank pulley

Duk996 · 11-18-2017, 08:37 AM

Quote:

Originally Posted by Maxe93

Quote:

Originally Posted by Duk996

Quote:

Originally Posted by Maxe93

Quote:

Originally Posted by Duk996

Is that oil milky? Even if it is I still got nothing. That's insane.

Thats oil and coolant .

I just noticed, it's supercharged? Probably detonation then...

This one wasn?t supercharged , my e93 is.

This car had a tune and crank pulley

Ohh, back to the starting point then lol, I got nothing. Maybe it was supercharged before and banged up good before you got the hot potato?

I don't know why a piston would let go like that. Could the oiling jet be clogged, no lube and the bore was destroyed and piston rocked like crazy? You should have heard that coming though.

Maxf80M3 · 11-18-2017, 08:43 AM

Quote:

Originally Posted by Duk996

Quote:

Originally Posted by Maxe93

Quote:

Originally Posted by Duk996

Quote:

Originally Posted by Maxe93

Quote:

Originally Posted by Duk996

Is that oil milky? Even if it is I still got nothing. That's insane.

Thats oil and coolant .

I just noticed, it's supercharged? Probably detonation then...

This one wasn?t supercharged , my e93 is.

This car had a tune and crank pulley

Ohh, back to the starting point then lol, I got nothing. Maybe it was supercharged before and banged up good before you got the hot potato?

I don't know why a piston would let go like that. Could the oiling jet be clogged, no lube and the bore was destroyed and piston rocked like crazy? You should have heard that coming though.

Original owner was a friend , he was hard on the car (no less then most of us) but no charger nothing significant. He dyno?ed the car Stock then put a tune and crank pulley. There was no difference .

We need to open up the motor. See the other cylinders. Not sure it?s worth the $$$.

Good thing is I have lots of spare parts , new actuators , new coils etc . I?ll most likely Recondition the heads to sell them.

Maxf80M3 · 11-18-2017, 08:44 AM

The plugs looked great .... ?

Duk996 · 11-18-2017, 08:46 AM

Quote:

Originally Posted by Maxe93

The plugs looked great .... ?

Haha, I'm sure that cylinder head will polish right up.

Helmsman · 11-18-2017, 08:58 AM

Bloody hell, thats a proper engine blow. Glad to hear you're alright, at 150kph anything could have happened.

Keep us posted on the solution towards a working car mate!

///M Power-Belgium · 11-18-2017, 09:00 AM

Terrible !

Maxf80M3 · 11-18-2017, 09:09 AM

Quote:

Originally Posted by Helmsman

Bloody hell, thats a proper engine blow. Glad to hear you're alright, at 150kph anything could have happened.

Keep us posted on the solution towards a working car mate!

The car was travelling at approx 60-70mph , The mileage was 150,000km

I found a clean 2010 motor with updated flywheel , lots of clutch life left. This motor at 150,000km had little to no clutch left. The adjustment springs were at their furthest point.

The motor mounts were in terrible condition , just as crap as my e93 was at 70,000km.

The original motor has a tune, I?m thinking I should restore the ecu to Stock?

Maxf80M3 · 11-18-2017, 09:14 AM

Mounts

///M Power-Belgium · 11-18-2017, 09:22 AM

Quote:

Originally Posted by Maxe93

Mounts

It's never good to run with motor mounts in such condition (completely shot)
I think this S65 got serious internal motor vibrations with these motor mounts .And that is never good .

Dave07997S · 11-18-2017, 11:57 AM

Quote:

Originally Posted by Maxe93

The plugs looked great .... ?

You could put those right back in and reuse them...

VictorH · 11-18-2017, 01:58 PM

Whenever I see a completely grenaded motor like that generally the operator is not paying attention and noticing that something is going wrong and just keeps their foot down. That took a little while to build up that much heat and that cylinder would be way down on power before grenading.

You said no supercharger and I would also then ask, no nitrous (that can blow them up real quick before you can respond)? Anyway, good luck and best wishes with the new motor. Maybe this was an aggressive tune and you just got some bad gas, bit of a bummer.

pbonsalb · 11-18-2017, 02:16 PM

Injector issue?

whats77inaname · 11-18-2017, 04:12 PM

What tune, and how long were you running it?

GORDON.M3 · 11-18-2017, 05:33 PM

Who tuned it LOL...

///M Power-Belgium · 11-18-2017, 06:44 PM

Quote:

Originally Posted by gordon@

Who tuned it LOL...

Tune is harmless .

Dr. Dre · 11-18-2017, 08:10 PM

The only time I've seen anything close to that is due to a bad tune. How long after the tune was done did the engine grenade?

Maxf80M3 · 11-18-2017, 08:24 PM

Quote:

Originally Posted by Dr. Dre

The only time I've seen anything close to that is due to a bad tune. How long after the tune was done did the engine grenade?

Verified.... tune in 2009. It dynoed the same as Stock

11-18-2017, 07:55 AM	#1
Maxf80M3 Boost Addict 179 Rep 460 Posts Drives: YMB F80 DCT Join Date: Dec 2014 Location: Toronto iTrader: (0)	Melted piston cylinder 3 During my s65 swap took a closer look at the motor we removed . Seems like cylinder 3 melted and disintegrated. Was picking pieces from the oil pan. Interesting enough the rod bolts and bearings are still intact . Cause ?? Lean condition ? Detonation? Bad gas ?? All this car had was a tune and a crank pulley. Went kaboom at 150km . Attached Images __________________ F80 BMW M3 DCT YMB 2008 BMW E93 6MT, Ess VT2 625
	Appreciate 1 ///M Power-Belgium92183.50 Tweet Quote

11-18-2017, 08:29 AM	#2
Duk996 Second Lieutenant 251 Rep 256 Posts Drives: E92 m3 Join Date: Oct 2017 Location: west virginia iTrader: (0)	Is that oil milky? Even if it is I still got nothing. That's insane.
	Appreciate 0 Quote

11-18-2017, 08:44 AM	#8
Maxf80M3 Boost Addict 179 Rep 460 Posts Drives: YMB F80 DCT Join Date: Dec 2014 Location: Toronto iTrader: (0)	The plugs looked great .... ? Attached Images __________________ F80 BMW M3 DCT YMB 2008 BMW E93 6MT, Ess VT2 625
	Appreciate 2 Duk996250.50 ///M Power-Belgium92183.50 Quote

11-18-2017, 08:58 AM	#10
Helmsman Major General 5484 Rep 7,657 Posts Drives: 2011 AW E90 M3 ZCP Join Date: Mar 2014 Location: Stockholm, Sweden iTrader: (0)	Bloody hell, thats a proper engine blow. Glad to hear you're alright, at 150kph anything could have happened. Keep us posted on the solution towards a working car mate!
	Appreciate 0 Quote

11-18-2017, 09:00 AM	#11
///M Power-Belgium General 92184 Rep 31,411 Posts Drives: ///M3-E92-DCT Join Date: Jul 2012 Location: Belgium iTrader: (0)	Terrible ! __________________ "MAX VERSTAPPEN" IS THE 2021+2022+2023+2024 F1 WORLD CHAMPION - #UnLeashTheLion - BPM DEV-Tune & DCT Software-Tune & Servotronic & coding ///Alpine HID Angeleyes ///Oem.exhaust mod.
	Appreciate 0 Quote

11-18-2017, 09:14 AM	#13
Maxf80M3 Boost Addict 179 Rep 460 Posts Drives: YMB F80 DCT Join Date: Dec 2014 Location: Toronto iTrader: (0)	Mounts __________________ F80 BMW M3 DCT YMB 2008 BMW E93 6MT, Ess VT2 625 Last edited by Maxf80M3; 03-23-2018 at 09:28 AM..
	Appreciate 1 ///M Power-Belgium92183.50 Quote

11-18-2017, 01:58 PM	#16
VictorH Major 464 Rep 1,288 Posts Drives: '09 M3 Join Date: Dec 2007 Location: SC iTrader: (4)	Whenever I see a completely grenaded motor like that generally the operator is not paying attention and noticing that something is going wrong and just keeps their foot down. That took a little while to build up that much heat and that cylinder would be way down on power before grenading. You said no supercharger and I would also then ask, no nitrous (that can blow them up real quick before you can respond)? Anyway, good luck and best wishes with the new motor. Maybe this was an aggressive tune and you just got some bad gas, bit of a bummer.
	Appreciate 1 Maxf80M3179.00 Quote

11-18-2017, 02:16 PM	#17
pbonsalb Lieutenant General 7679 Rep 13,759 Posts Drives: 18 F90 M5, 99 E36 M3 Turbo Join Date: Feb 2011 Location: New England iTrader: (4)	Injector issue?
	Appreciate 1 Maxf80M3179.00 Quote

11-18-2017, 04:12 PM	#18
whats77inaname Banned 902 Rep 3,384 Posts Drives: when at all possible Join Date: Aug 2011 Location: Tx iTrader: (25)	What tune, and how long were you running it?
	Appreciate 1 MilehighM3961.00 Quote

11-18-2017, 05:33 PM	#19
GORDON.M3 Brigadier General 1646 Rep 3,149 Posts Drives: E92 M3 • G05 X5 M-Sport Join Date: Dec 2013 Location: LAX/YYZ/NRT iTrader: (12)	Who tuned it LOL...
	Appreciate 0 Quote

11-18-2017, 08:10 PM	#21
Dr. Dre the doctor 308 Rep 432 Posts Drives: E46 M3 Alpine White Join Date: Dec 2008 Location: CA, Bay Area iTrader: (0)	The only time I've seen anything close to that is due to a bad tune. How long after the tune was done did the engine grenade?
	Appreciate 0 Quote