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chase boy 301 · 03-11-2013, 10:53 PM

Today I went flying just sport flying in fm1 engine kind of died down on its own so came home looked everything over then I notice my engine has no compression at all. Did I ruin my engine. Took off pipe looked in backplate and I can see little pieces of metal. Oh when I was flying I head a noise I never heard before like something broke.
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chase boy 301 · 03-12-2013, 11:13 PM

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is my engine fried ? i think so just wanted to make sure from videos on u tube i did thanks

cmouton · 03-13-2013, 11:11 AM

The engine are fried. You had a very lean run.

marc8090 · 03-13-2013, 12:35 PM

It was run too lean and/or destroyed a rear bearing. The pitting in the top of the piston is either from detonation or from pieces of bearing being smashed between the piston and cylinder head.

chase boy 301 · 03-13-2013, 03:13 PM

Thanks I thought so my glow plug was loose when I took it off I think that's what caused it. Thanks for the replies.

03-11-2013, 10:53 PM	#1 (permalink)
chase boy 301 Registered Users Join Date: Jan 2012 Location: FL	engine problem Today I went flying just sport flying in fm1 engine kind of died down on its own so came home looked everything over then I notice my engine has no compression at all. Did I ruin my engine. Took off pipe looked in backplate and I can see little pieces of metal. Oh when I was flying I head a noise I never heard before like something broke. Pics in profile Last edited by chase boy 301; 03-12-2013 at 12:17 AM.. Reason: pic

03-12-2013, 11:13 PM	#2 (permalink)
chase boy 301 Registered Users Thread Starter Join Date: Jan 2012 Location: FL	pics is my engine fried ? i think so just wanted to make sure from videos on u tube i did thanks

03-13-2013, 11:11 AM	#3 (permalink)
cmouton Registered Users Join Date: Mar 2011	The engine are fried. You had a very lean run. __________________ Align T-Rex 600&700 Nitro Pro DFC SAB Goblin 630 Competition SAB Trioblin 500 Futaba 8FG Super

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03-13-2013, 12:35 PM	#4 (permalink)
marc8090 Registered Users Join Date: Sep 2006	It was run too lean and/or destroyed a rear bearing. The pitting in the top of the piston is either from detonation or from pieces of bearing being smashed between the piston and cylinder head.

03-13-2013, 03:13 PM	#5 (permalink)
chase boy 301 Registered Users Thread Starter Join Date: Jan 2012 Location: FL	Thanks I thought so my glow plug was loose when I took it off I think that's what caused it. Thanks for the replies.

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