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      12-05-2014, 10:41 AM   #1
mtecnic
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Blown engine pics and service bill

I'm already in the blown engine registry but I just got my car back from dealer replacing the engine. I wanted to share the pics and service bill. All prices were taken from REALOEM.com. Enjoy!
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File Type: pdf Deskscan0334.pdf (75.2 KB, 290 views)
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      12-05-2014, 10:56 AM   #2
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Thanks for posting. Its a tragedy to see what happened. Im glad you got it fixed and hope your new motor gives you years of service. It also makes me glad I replaced my rod bearings at 48k! 2k vs 26k not including labor............
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      12-05-2014, 11:19 AM   #3
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What was the root cause of the blown engine? Did your vehicle have a tune with raised rpm redline?
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      12-05-2014, 11:30 AM   #4
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Quote:
Originally Posted by Killerfish2012 View Post
What was the root cause of the blown engine? Did your vehicle have a tune with raised rpm redline?
The picture shows it spun a rod bearing.
Glad you got it fixed on bmws dime.
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      12-05-2014, 11:45 AM   #5
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That's one looks really bad. How many miles on it?
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      12-05-2014, 12:05 PM   #6
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70k miles.
regular oil changes, no tunes or performance mods.
Engine failed at 7000 rpms at 100mph.
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      12-05-2014, 12:21 PM   #7
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Quote:
Originally Posted by kawasaki00 View Post
The picture shows it spun a rod bearing.
Glad you got it fixed on bmws dime.
Spun rod bearing due to failed/worn bearing or something else causes this?
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      12-05-2014, 12:22 PM   #8
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Quote:
Originally Posted by mtecnic View Post
Spun rod bearing due to failed/worn bearing or something else causes this?
Wear caused it to catch/spin and that caused the rod to window the block.
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      12-05-2014, 01:23 PM   #9
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Sucks this happened, but why do people automatically assume it's going to cost them $26k?

If my motor went, since I'm out of warranty, I'd get a used in good condition engine for 7-8k and then toss in the WPC treated bearings.
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      12-05-2014, 01:41 PM   #10
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Is it just me or does it look like there was a lot of detonation in that piston? The rod is all burnt up.
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      12-05-2014, 03:40 PM   #11
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Quote:
Originally Posted by Killerfish2012
Is it just me or does it look like there was a lot of detonation in that piston? The rod is all burnt up.
Yeah! I'm thinking the same thing? You can also see some melting as well.
Something else had to fail to cause the friction?
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      12-05-2014, 03:44 PM   #12
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Quote:
Originally Posted by mtecnic View Post
Spun rod bearing due to failed/worn bearing or something else causes this?
Quote:
Originally Posted by Killerfish2012 View Post
Is it just me or does it look like there was a lot of detonation in that piston? The rod is all burnt up.
Top left rod bearing went out first and welded the rod to the crank. That is what turns it black, doesnt have anything to do with detonation. As the first rod was welding itself debris crossed over to the second rod and then welded that one to the crank. The rod that is split down the middle is from when the rod welds itself it will no longer turn with the crank and shatters the rod in half. Upon the next up stroke as the end of the rod is swinging like a machette it hits the piston and blows it apart along with everything else. The debris hits the other rod and if it is not already broken from the welding then it just breaks the second rod and the rest is history.
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      12-05-2014, 03:47 PM   #13
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Quote:
Originally Posted by Tracyis300 View Post
Yeah! I'm thinking the same thing? You can also see some melting as well.
Something else had to fail to cause the friction?
Nothing melted other than the rod bearing, if the piston failed first the rod would not be black. Have seen many rods shattered in half from a failed piston that the big end of the rod still spins freely on the crank. If the big end of the rod is black that means the rod bearing went first, either lack of oil or debris.
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      12-05-2014, 03:48 PM   #14
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Quote:
Originally Posted by kerrit View Post
Sucks this happened, but why do people automatically assume it's going to cost them $26k?

If my motor went, since I'm out of warranty, I'd get a used in good condition engine for 7-8k and then toss in the WPC treated bearings.
Good point, im sure there are less expensive options if you didn't want a new block. Comment was made based on the invoice OP posted.
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      12-05-2014, 03:50 PM   #15
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Holy sh!t.......serious stuff...serious bill
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      12-05-2014, 03:54 PM   #16
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Here is a pic of a crank that got so hot from welding it actually melted part of the journal away.
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      12-05-2014, 04:18 PM   #17
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OP, were you under warranty or was this good-willed?
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      12-05-2014, 05:14 PM   #18
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Quote:
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OP, were you under warranty or was this good-willed?
67 days left on CPO when it happened. 7 days left on warranty.

Dealer said no additional warranty on the new motor. It is what it is.
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      12-05-2014, 06:25 PM   #19
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Quote:
Originally Posted by mtecnic View Post
67 days left on CPO when it happened. 7 days left on warranty.

Dealer said no additional warranty on the new motor. It is what it is.
That doesn't make sense to me. What if there was something wrong with this new engine?!

I would think at least a year...
Good luck!
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      12-05-2014, 07:14 PM   #20
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Do these motors really just blow up with no warning?

I've built only a small number of motors (less than 10) and I've never had a motor blow up without any kind of warning (sure it can happen if you have sudden catastophic parts failure, luckily I've never had that). I've taken motors apart with some ugly parts inside but there's usually noise, knocking or other warning which I always took as a "whoa, I need to shut this down" warning.
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      12-05-2014, 07:29 PM   #21
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Quote:
Originally Posted by mtecnic View Post
67 days left on CPO when it happened. 7 days left on warranty.

Dealer said no additional warranty on the new motor. It is what it is.
yea thats bs, like its ur fault the motor gave when it did, esp since u were stock
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      12-05-2014, 07:42 PM   #22
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what was it like when it failed?
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