Look what I found!

[carusoam]

Chrome would not be magnetic, and if it were able to hold tight to the steel, it wouldn't have flaked off...

the oil guys have all the tests available to tell what metal it is and where to look for its origin...

A good quality chrome coating is hard to flake off.  A not so good chrome coating comes off easily...

Best regards,

-a-

[peevee]

41 minutes ago, carusoam said:

Chrome would not be magnetic, and if it were able to hold tight to the steel, it wouldn't have flaked off...

the oil guys have all the tests available to tell what metal it is and where to look for its origin...

A good quality chrome coating is hard to flake off.  A not so good chrome coating comes off easily...

Best regards,

-a-

What I'm trying to get at is it looks like the first pic shows the metal attached to a magnet so it's probably not chrome.

[jetdriven]

That doesnt look good. its probably in the bearings, the piston skirts, the oil pump, the prop governor.  Cam/lifter stuff is usually more powedery and had some pieces with slivers.  Often platelets. Yours  looks like chunks.

Edited May 29, 2017 by jetdriven

[Culver LFA]

I think I would approach this differently, keep the engine together until it is absolutely determined that it must come apart (and thus disabled).  It would be a good idea to remove the propeller governor so that the gasket screen could be examined for debris.  If there is no debris in the governor gasket then the oil strainer caught it and the oil circuit should then be clean.  The question then would be, how long has it been since the strainer was last inspected?  If cleaned and inspected recently put it back together, do a ground run and reinspect the screen again.  There is a Lycoming bulletin on this procedure, I think it was mentioned here on MS not too long ago?

Just some non-A&P thoughts based off my past professional experience, I think it is more important to know if debris has passed through the oil circuit or not. 

 

[FloridaMan]

On 5/28/2017 at 8:34 PM, jetdriven said:

That doesnt look good. its probably in the bearings, the piston skirts, the oil pump, the prop governor.  Cam/lifter stuff is usually more powedery and had some pieces with slivers.  Often platelets. Yours  looks like chunks.

You mean like this?

[TonyK]

Have you decided to pull the engine for overhaul yet?

[Stephen]

Look at Antares' icon...sounds like an overhaul may over-draw the spousal good will currency account.... 

[XXX]

57 minutes ago, Stephen said:

Look at Antares' icon...sounds like an overhaul may over-draw the spousal good will currency account.... 

I've met his girl and she is real a sweetheart. Quite the opposite of his icon/avatar.

[1964-M20E]

19 hours ago, Chupacabra said:

I've met his girl and she is real a sweetheart. Quite the opposite of his icon/avatar.

You should have seen her after a couple of drinks.  

 

 

 

 

No just kidding she is very nice.  

[Stephen]

Then she is a keeper forever treasure!

[Shadrach]

On 5/27/2017 at 7:42 PM, peevee said:

Isn't chrome non-magnetic? Or is it taking some steel with it when it comes off?

It is and it isn't. Depends on temperature. 

[FloridaMan]

[MB65E]

Dude!

now we know. Good luck putting it back together. Thanks for sharing. Makes me rethink the "fly it" option...

-Matt

[FloridaMan]

Glad I didn't sell it with the engine like that. 

[carusoam]

the only hint was bits in the oil screen, filter element, and on the magnet.

Was there any operational hints? Vibration, noises, OilT or anything else?

Previous history... Ground strike?

I'm just digging for a lesson.  Not trying to make your situation more of a challenge.

Best regards,

-a-

 

[epsalant]

What are we looking at?


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[N6758N]

Just now, epsalant said:

What are we looking at?


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Main bearings

[Godfather]

So is this a duct tape or wd40 type of fix?

@Antares how many hours have you personally put behind this engine?  

[carusoam]

Those are the main surfaces that are protected by a thin film of oil while the engine's crank is turning.

Something interrupted the normal lubrication process, and or damaged the mirror smooth surfaces.

See if Antares can share a picture of the new bearings for comparison..?

Best regards,

-a-

 

[Dream to fly]

56 minutes ago, Antares said:

Are those rods or mains.  I am assuming mains.  If that is the case where did the oil stop flowing, and then why no vibration??  All questions not pointing at fingers.  What was oil pressure hot?  What does the crank look like? 

[peevee]

3 minutes ago, Dream to fly said:

  What does the crank look like? 

Based on those? My money is on FUBAR

[PTK]

On 5/22/2017 at 6:56 PM, Antares said:

...in my oil screen. 

 

 

You've got metal!

Before moving forward I would send the filter and metal samples to Aviation Laboratories for an analysis. You will know exactly what it is you're looking at and where it comes from. Costs about 100$ but you'll be informed instead of guessing. 

http://www.avlab.com/SearchResults.asp?Cat=1871

[peevee]

2 minutes ago, PTK said:

You've got metal!

Before moving forward I would send the filter and metal samples to Aviation Laboratories for an analysis. You will know exactly what it is you're looking at and where it comes from. Costs about 100$ but you'll be informed instead of guessing. 

http://www.avlab.com/SearchResults.asp?Cat=1871

it's gone a little beyond that

[Mcstealth]

20 minutes ago, epsalant said:

What are we looking at?


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What is interesting is that two journals were affected. 

[Dream to fly]

What is interesting to me is that technology today is building better stronger alloys for engine parts and the big two engine companies are still working with yester year technology.  The only time I see this kind of failure is when a customer doesn't do maintenance.  Plane owners are way far more astute to maintenance and even some go over board.  There is no reason for bearings to wash or cams to fail.