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Engine failure

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jrstone(at)insightbb.com
Guest

Posted: Sat Jun 30, 2012 4:28 am Post subject: Engine failure

I had an engine failure in my Harmon Rocket (Lyc IO 540), and I am looking for an engine expert to have a look at all the pieces and tell me what caused the failure.  I have the entire engine disassembled and available for inspection in Louisville Kentucky.



Or, I would like any info on KS bearing failure and their roll in engine failures.  My engine failed with less than 400 hours since 0 time rebuild.  



The engine started making a faint knocking noise followed by oil temp climb and caution, I headed back to my field and I was on base leg when a connecting rod failed and punched thru the case, I landed without further incident.



The engine seized just after touchdown.  The case, crank, cam, rods, pistons and cylinders were all damaged and unusable.  

Of note, my engine started making metal on the last oil analysis indicating something wearing, the company said to retest in 25 hours, I didn't make 10.  I suspect the KS rod bearing failed causing the rod bolts to work harden and fail.

If you have any experience or knowledge you could pass on to me, please call or email me.



My goal is to pursue KS bearing if they are determined to be the cause of the failure.  



Thanks,

Jim Stone

502 235-3599



Sent from my iPad

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smokyray(at)rocketmail.co
Guest

Posted: Sat Jun 30, 2012 8:17 am Post subject: Engine failure

Jim,

 I will visit my Lycoming expert friend JR next week and share your experience. I will let you know what transpires.



Smokey



Sent from my iPhone



On Jun 30, 2012, at 8:27, Jim Stone <jrstone(at)insightbb.com> wrote:



 	  Quote: 	
		   

 

 I had an engine failure in my Harmon Rocket (Lyc IO 540), and I am looking for an engine expert to have a look at all the pieces and tell me what caused the failure.  I have the entire engine disassembled and available for inspection in Louisville Kentucky.

 

 Or, I would like any info on KS bearing failure and their roll in engine failures.  My engine failed with less than 400 hours since 0 time rebuild.  

 

 The engine started making a faint knocking noise followed by oil temp climb and caution, I headed back to my field and I was on base leg when a connecting rod failed and punched thru the case, I landed without further incident.

 

 The engine seized just after touchdown.  The case, crank, cam, rods, pistons and cylinders were all damaged and unusable.  

 Of note, my engine started making metal on the last oil analysis indicating something wearing, the company said to retest in 25 hours, I didn't make 10.  I suspect the KS rod bearing failed causing the rod bolts to work harden and fail.

 If you have any experience or knowledge you could pass on to me, please call or email me.

 

 My goal is to pursue KS bearing if they are determined to be the cause of the failure.  

 

 Thanks,

 Jim Stone

 502 235-3599

 

 

 

 Sent from my iPad

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nico(at)cybersuperstore.c
Guest

Posted: Sat Jun 30, 2012 5:05 pm Post subject: Engine failure

Glad you are OK, Jim. 



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jrstone(at)insightbb.com
Guest

Posted: Sun Jul 01, 2012 6:15 pm Post subject: Engine failure

Thanks



Sent from my iPad



On Jun 30, 2012, at 8:56 PM, "cybersuperstore" <nico(at)cybersuperstore.com> wrote:



[quote] 

 

 Glad you are OK, Jim. 

 

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