Blown motors, Rod Bearing failure S65 Registry.

[admranger]

Originally Posted by Green-Eggs

In an S65 connecting rod, the locater tangs face each other on the same parting line. In the failure case mentioned, one shell was installed with the locater tangs at opposite parting lines. The offending shell locater tang wasn't installed in the connecting rod correctly.

So he had one shell with the tang not in the slot? Holy reduced clearance Batman! That had to make a mess of things...

[Green-Eggs]

Originally Posted by admranger

So he had one shell with the tang not in the slot? Holy reduced clearance Batman! That had to make a mess of things...

Correct, it made a huge mess of things. Bert figured it out by aligning the scrape marks on the pictures to figure out that one shell was installed backwards.

[Scharbag]

Originally Posted by Green-Eggs

Correct, it made a huge mess of things. Bert figured it out by aligning the scrape marks on the pictures to figure out that one shell was installed backwards.

Must have been the last shell installed cause how could you turn the engine by hand with a shell in backwards?

[MMachines]

Too many beer or something? How do you not notice your cap not sitting flush with these cracked rods? I enjoyed the beauty as mine went together and actually thought "how does someone mix this up?".

[///M Power-Belgium]

AmrazM for the list => http://www.m3post.com/forums/showthr...4#post23259554

His original engine seized in January 2015 with only 25K miles on it !
The original engine was replaced with a *NEW unit not a rebuilt* and his bearings look like 5HIT again....
Terrible ?!?!

[XIX]

Originally Posted by ///M Power-Belgium

AmrazM for the list => http://www.m3post.com/forums/showthr...4#post23259554

His original engine seized in January 2015 with only 25K miles on it !
The original engine was replaced with a *NEW unit not a rebuilt* and his bearings look like 5HIT again....
Terrible ?!?!

So that would mean they are stock bolts and stock bearings. Not replaced ones. So the theory holds so far.

[///M Power-Belgium]

Originally Posted by XIX

So that would mean they are stock bolts and stock bearings. Not replaced ones. So the theory holds so far.

Positive

[///M Power-Belgium]

[houston]

sounds a lot like the description of mine when it failed. 2011 with 17000 miles.
I was told that multiple rods were also bent.

Such a nightmare.

[mistab]

So it might be time for me to add my 2011 e93 to the list of blown engines

Got stuck in the mud a few weeks back, as I was trying to keep moving due to poor weather conditions. Second owner and have a little under 69k.

Turned off the traction and tried to power out of it (which I now know was a stupid thing to do). Car cut off and wouldn't start.

Tried to jump it. Sounded like it was gonna start but nothing. Eventually got nothing but smoke.

Towed to BMW, techs claimed they think it's water damage but won't explore further.

Geico claims there is no sign of water damage and says the engine is damaged due to mechanical failure.

Independent mechanic pulled the spark plugs out and was able to start the engine. Put plugs back in and engine stalled. Was hard to crank again and more smoke appeared.

Mechanic will now drop pan to inspect further.

Is there any telltale sign of water damage to engine before opening it? Incident happened May 27th.

Still owe on the car and am heading across the country in 6 weeks. If there is ANY sign of water damage I can get Geico to cover it but it doesn't look like that will be easy to prove

[Scharbag]

Originally Posted by mistab

So it might be time for me to add my 2011 e93 to the list of blown engines

Got stuck in the mud a few weeks back, as I was trying to keep moving due to poor weather conditions. Second owner and have a little under 69k.

Turned off the traction and tried to power out of it (which I now know was a stupid thing to do). Car cut off and wouldn't start.

Tried to jump it. Sounded like it was gonna start but nothing. Eventually got nothing but smoke.

Towed to BMW, techs claimed they think it's water damage but won't explore further.

Geico claims there is no sign of water damage and says the engine is damaged due to mechanical failure.

Independent mechanic pulled the spark plugs out and was able to start the engine. Put plugs back in and engine stalled. Was hard to crank again and more smoke appeared.

Mechanic will now drop pan to inspect further.

Is there any telltale sign of water damage to engine before opening it? Incident happened May 27th.

Still owe on the car and am heading across the country in 6 weeks. If there is ANY sign of water damage I can get Geico to cover it but it doesn't look like that will be easy to prove

Hydrolock is pretty easy to prove - it bends shit.

Cheers,

[mistab]

Originally Posted by Scharbag

Hydrolock is pretty easy to prove - it bends shit.

Cheers,

Yeah mechanic suspects bent rods or worn out rod bearings. Praying it's been rods cause I'm looking at 9k for an engine plus labor of it's worn

[pbonsalb]

Originally Posted by mistab

Yeah mechanic suspects bent rods or worn out rod bearings. Praying it's been rods cause I'm looking at 9k for an engine plus labor of it's worn

You should pray it’s just worn rod bearings. Bent rods require engine disassembly out of the car.

We don’t read much about bent rods. We read about rod bearings failing and causing a rod to go through the block. Usually the crank is damaged. New engine required.

Rarely, main bearings fail, which typically requires a new used crank or machining to the original crank and oversize bearings.

Let us know what it is.

[Scharbag]

Originally Posted by mistab

Yeah mechanic suspects bent rods or worn out rod bearings. Praying it's been rods cause I'm looking at 9k for an engine plus labor of it's worn

On the subject of hydrolock, we had a 1200HP 36 litre inline 6 diesel that, umm, someone hydro locked by filling the after-cooler with coolant when replacing the water pump...

Lucky for us, it blew the head gasket before it bent the rods...

But typically, hydro locking causes shit to bend in gas engines. Just think: 12:1 compression, 500ml per cylinder means if any 1 cylinder gets more than 41.666ml of water in it, you will cause, how do we say, issues to occur.

And for reference, a shot of whiskey is ~30ml...

[m3jala]

Originally Posted by Scharbag

On the subject of hydrolock, we had a 1200HP 36 litre inline 6 diesel that, umm, someone hydro locked by filling the after-cooler with coolant when replacing the water pump...

Lucky for us, it blew the head gasket before it bent the rods...

But typically, hydro locking causes shit to bend in gas engines. Just think: 12:1 compression, 500ml per cylinder means if any 1 cylinder gets more than 41.666ml of water in it, you will cause, how do we say, issues to occur.

And for reference, a shot of whiskey is ~30ml...

I bet if we start using whiskey instead of 10w60 we would no longer hear about these rod bearing failures. Glug glug glug

[Shazz]

This guy did alright

[mistab]

Originally Posted by pbonsalb

You should pray it’s just worn rod bearings. Bent rods require engine disassembly out of the car.

We don’t read much about bent rods. We read about rod bearings failing and causing a rod to go through the block. Usually the crank is damaged. New engine required.

Rarely, main bearings fail, which typically requires a new used crank or machining to the original crank and oversize bearings.

Let us know what it is.

Still waiting to hear back. I'm hoping for some sign of water damage because my insurance will cover that. I got a quote of 10k to have a used engine installed.

Notes from the mechanic as follows

"Took spark plugs out and was able to crank the engine with the starter,put spark plugs back and start the engine up and was running idle for 1minute fine and then stalled out

Tried to crank again and huge smoke starts coming from starter, was able to crank engine by hand and it was hard to turn it

Took the oil filter out and found a lot of metal dust inside, possible is rod bearings worn out and caused hard crankshaft spinning

Recommend to take oil pan out to inspect for damages"

Picture of filter

[deansbimmer]

Originally Posted by mistab

Still waiting to hear back. I'm hoping for some sign of water damage because my insurance will cover that. I got a quote of 10k to have a used engine installed.

Notes from the mechanic as follows

"Took spark plugs out and was able to crank the engine with the starter,put spark plugs back and start the engine up and was running idle for 1minute fine and then stalled out

Tried to crank again and huge smoke starts coming from starter, was able to crank engine by hand and it was hard to turn it

Took the oil filter out and found a lot of metal dust inside, possible is rod bearings worn out and caused hard crankshaft spinning

Recommend to take oil pan out to inspect for damages"

Picture of filter

Main bearing failure. RIP.

[mistab]

Great

[MMachines]

I'm late to the game now that you've got an oil filter housing picture but water in the engine would have gotten in there somehow, are there any signs of moisture/dirt/etc in the intake, air box, filter wet or dirty?

[Bartledoo]

Originally Posted by mistab

Notes from the mechanic as follows

"Took spark plugs out and was able to crank the engine with the starter,put spark plugs back and start the engine up and was running idle for 1minute fine and then stalled out

Tried to crank again and huge smoke starts coming from starter, was able to crank engine by hand and it was hard to turn it

Took the oil filter out and found a lot of metal dust inside, possible is rod bearings worn out and caused hard crankshaft spinning

Recommend to take oil pan out to inspect for damages"

Picture of filter

Sounds like the mechanic went ahead and finished her off for you.

[///M Power-Belgium]

Originally Posted by mistab

Still waiting to hear back. I'm hoping for some sign of water damage because my insurance will cover that. I got a quote of 10k to have a used engine installed.

Notes from the mechanic as follows

"Took spark plugs out and was able to crank the engine with the starter,put spark plugs back and start the engine up and was running idle for 1minute fine and then stalled out

Tried to crank again and huge smoke starts coming from starter, was able to crank engine by hand and it was hard to turn it

Took the oil filter out and found a lot of metal dust inside, possible is rod bearings worn out and caused hard crankshaft spinning

Recommend to take oil pan out to inspect for damages"

Picture of filter

I'm sorry . But I'm pretty sure your mechanic is an idiot and out of his mind !
An engine like yours was (circumstance) and knowing the situation , is one second that it runs . A second too much . And will cause irreparable damage !
Result ? Now your S65 is completely RIP !