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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 10-22-2013, 06:32 AM
thecreator88 thecreator88 is offline
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piston went through engine , engine swap ?

hello
last night when i was driving at around 4-5k revs the engine died and a piston or rod went through the engine block. the car is a 525i m54 double vanos engine with 150k miles on it.
my question is what caused this , i know i had a compression problem on cyl 6 it was 9 and the other cylinder where 11.5 , could this be the cause
and what do you think i should buy another m54b25 engine or a m54b30
is the swap easy , on realoem it says that the clutch is different and the gearbox also
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  #2  
Old 10-22-2013, 06:38 AM
mrl761 mrl761 is offline
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Re: piston went through engine , engine swap ?

Don't know mucha bout the swap but blown rods usually caused due to oil starvation

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  #3  
Old 10-22-2013, 07:30 AM
HTK12 HTK12 is offline
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Are you sure that rod/piston went through the block? Or are you just guessing, since it won't start? Catastrophic damage like that is quite rare on e39. Only thing that comes to mind is that the engine ingested large amount of water, hence hydrolocked. Swapping another m54b25 engine is straightforward, you just need to have the tools and know what your doing.
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  #4  
Old 10-22-2013, 07:49 AM
thecreator88 thecreator88 is offline
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went through the block , I even see the hole in the engine block and i picked the engine bits of the road
the strange thing is that there were no signs , no check engine lights no noises
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  #5  
Old 10-22-2013, 08:22 AM
HTK12 HTK12 is offline
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Is there any water under the drivers side cabin air filter?
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  #6  
Old 10-22-2013, 09:31 AM
thecreator88 thecreator88 is offline
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no , i had that problem 2 years ago , could it be a result of that , but now its dry
when i get a new engine will see what realy happened
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  #7  
Old 10-22-2013, 10:16 AM
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bluebee bluebee is offline
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These should help:
- Summary advice to provide users who suspect a major engine repair due to overheating (1) (2) (3) (4) & how to test an engine for a blown head gasket, cracked heads, a warped block, stripped head bolt threads, cam seizures, contaminated bearings, coolant hydrolock, or piston, ring, or valve damage (1) (2) & what are the major factors in deciding whether to rebuild the engine, replace the engine, or sell the car (1) & a DIY for replacing the I6 M54 head gasket (1) (2) & replacing the V8 M62TU head gasket (1) & why these engines are so prone to heat-related damage in the first place (1) & welding the crack between cylinder #3 and the water jacket on the exhaust side (1) & what engine swaps are most recommended (1) (2) (3) & where to obtain a new or rebuilt head (1) replacement short block or long block (1) (2) & how to lift & remove the engine (1) & the most recent real-world results from the last 50 people faced with similar blown engine problems from which this advice came from (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15) (16) (17) (18) (19) (20) (21) (22) (23) (24) (25) (26) (27) (28) (29) (30) (31) (32) (33) (34) (35) (36) (37) (38) (39) (40) (41) (42) (43) (44) (45) (46) (47) (48) (49) (50)
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Each repair should invariably add to our knowledge base by the process of inexorable incrementalism.
Your job, in return, is to read the suggested threads, where the best people will always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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  #8  
Old 10-22-2013, 10:28 AM
HTK12 HTK12 is offline
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Quote:
Originally Posted by thecreator88 View Post
no , i had that problem 2 years ago , could it be a result of that , but now its dry
when i get a new engine will see what realy happened
No it can't be a result of that. Water under the drivers side cabin air filter can be sucked in the engine via vacuum hose that is connected to the brake booster. If engine sucks up enough water the engine will immediately be destroyed. Did you have enough engine oil?
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  #9  
Old 10-22-2013, 10:32 AM
thecreator88 thecreator88 is offline
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the engine cant be repaired , there is a huge hole in it )))
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  #10  
Old 10-25-2013, 01:38 AM
thecreator88 thecreator88 is offline
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got a closer look at the engine has 4 holes in it and one in the oil pan
got a question for you , in one of the holes , near the gearbox there is a plastic rod stinking out of it , what could it be?? part of the gearbox??
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  #11  
Old 10-25-2013, 07:27 AM
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Jose3081 Jose3081 is offline
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piston went through engine , engine swap ?

Post some pictures


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  #12  
Old 10-25-2013, 08:10 AM
kutcht1 kutcht1 is offline
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Ya, I gots to see this mess. Pull that engine and tear it down to see what really happened.
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  #13  
Old 10-25-2013, 11:37 AM
thecreator88 thecreator88 is offline
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here are the bits I collected from the road , there are still some more bits in the engine compartment , I am going tomorrow to a scrapyard to buy a engine
Attached Thumbnails
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  #14  
Old 10-25-2013, 11:47 AM
GSXRYDER GSXRYDER is offline
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This pic

is quite interesting...I see a piece of a flywheel which isn't an internal part this is external to the engine i tself...I would be very interested to see...

And in 36 years in the auto industry I've NEVER seen a piston go through an engine...NEVER...now I have seen quite a few broken rods go through a block...and if the rod goes through some are actually repairable...

But good luck with the new engine...what are you putting in it? LS7?

LOL
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  #15  
Old 10-25-2013, 12:01 PM
thecreator88 thecreator88 is offline
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i don't know if there was a rod or a piston, anyway the engine has 4 holes in it , and one of them is in the oil pan , the holes are on both sides
in europe we don't have ls7 engines
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  #16  
Old 10-25-2013, 12:06 PM
kutcht1 kutcht1 is offline
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Are you sure it is the engine and oil pan and not the ATX and it's pan which means your transmission blew up? Those sure look like flywheel parts.
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  #17  
Old 10-25-2013, 12:08 PM
taggart taggart is offline
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Wow looks like your flywheel grenaded. Is your engine stock? Manual? Hope to see more pics of the damage.
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  #18  
Old 10-25-2013, 02:43 PM
thecreator88 thecreator88 is offline
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it's manual , stock engine 230.000 km on it , oil was 3 monts old and 3000 km old , I think those are bits of the crankshaft , when the engine blew up it had 4800 rps
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  #19  
Old 10-25-2013, 02:49 PM
mrl761 mrl761 is offline
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Re: piston went through engine , engine swap ?

Did you take the engine out?

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  #20  
Old 10-25-2013, 03:02 PM
EconoBox EconoBox is offline
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  #21  
Old 10-25-2013, 03:16 PM
pshovest pshovest is online now
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Looks like the crank mounted chopper wheel for the CPS.
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  #22  
Old 10-25-2013, 03:46 PM
HTK12 HTK12 is offline
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Sure looks like the crankshaft impulse wheel. No wierd noises before the explosion?
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  #23  
Old 10-28-2013, 05:40 AM
thecreator88 thecreator88 is offline
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nothing ,just a big bang , bought a engine , i will post some photos when i take the engine apart
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  #24  
Old 10-28-2013, 09:29 AM
GSXRYDER GSXRYDER is offline
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Really?

Quote:
Originally Posted by thecreator88 View Post
i don't know if there was a rod or a piston, anyway the engine has 4 holes in it , and one of them is in the oil pan , the holes are on both sides
in europe we don't have ls7 engines
No Corvettes in Europe? I thought we were selling thme there?
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  #25  
Old 10-28-2013, 06:07 PM
granlund granlund is offline
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There are Corvettes in Europe, it's just that the Z06 LS7 probably was not sold there. But, since they are not plentyful, it's a little bit more difficult to source an LSx with a manual transmission for any reasonable money.
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