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engine inspection

 
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davemader(at)bresnan.net
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PostPosted: Mon Nov 19, 2007 4:04 pm    Post subject: engine inspection Reply with quote

Am just about ready to hang the engine on my RV-4 project. The engine was purchased on E-bay and was supposedly rebuilt in 1991. On the outside, it looks very clean and looks like it was very well done, however, its been over ten years since the completion of this overhaul. I have convinced myself to at least pull a cylinder and look inside. My question is, is there a certain cylinder which will show me the most once I get it off? One, two, three, or four? Any opinions would be appreciated.
Dave Mader
RV-6A sold
RV-6 flying
RV-4 building
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kboatright1(at)comcast.ne
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PostPosted: Mon Nov 19, 2007 5:32 pm    Post subject: engine inspection Reply with quote

Do you know how the engine was stored? Vertical or horizontal? If vertical, I would check whichever cylinder was on top. If horizontal, I can't think of a reason why one cylinder would be any better or worse than the others.

Have you pulled the plugs on your cylinders? If you do that, you can poke a flashlight in one spark plug hole and look in the other, then repeat the other way around. A borescope would be even better. You could at least get some idea of the condition of the inside of all of your cylinders.

KB

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mrobert569(at)hotmail.com
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PostPosted: Tue Nov 20, 2007 7:07 am    Post subject: engine inspection Reply with quote

Too look inside any cylinder will do but I would also encourage you to find a borescope and check each cylinder.  As it was rebuilt in 1991 I would check the oil pump for AD 96-09-10 compliance. Most, if not all, DARs and inspectors will not buy off the initial inspection unless they know that all ADs have been complied with.  The reason for this is that we know that you don't have to comply once the A/W cert is issued but we don't consider that aircraft safe to operate unless all ADs are done at the time of the initial inspection.

Mike Robertson
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From: davemader(at)bresnan.net
To: rv-list(at)matronics.com
Subject: RV-List: engine inspection
Date: Mon, 19 Nov 2007 17:03:14 -0700

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Am just about ready to hang the engine on my RV-4 project. The engine was purchased on E-bay and was supposedly rebuilt in 1991. On the outside, it looks very clean and looks like it was very well done, however, its been over ten years since the completion of this overhaul. I have convinced myself to at least pull a cylinder and look inside. My question is, is there a certain cylinder which will show me the most once I get it off? One, two, three, or four? Any opinions would be appreciated.
Dave Mader
RV-6A sold
RV-6 flying
RV-4 building
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davemader(at)bresnan.net
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PostPosted: Tue Nov 20, 2007 7:18 am    Post subject: engine inspection Reply with quote

Kyle,
Thanks for the response. What I was really more concerned with was the inside of the engine. I have heard you can inspect quit a bit of the inside from the cylinder hole. I would like to be able to see the cam and maybe the face of one or two followers. Just thought maybe one cylinder hole would be better than another.


From: owner-rv-list-server(at)matronics.com [mailto:owner-rv-list-server(at)matronics.com] On Behalf Of Kyle Boatright
Sent: Monday, November 19, 2007 6:29 PM
To: rv-list(at)matronics.com
Subject: Re: engine inspection


Do you know how the engine was stored? Vertical or horizontal? If vertical, I would check whichever cylinder was on top. If horizontal, I can't think of a reason why one cylinder would be any better or worse than the others.



Have you pulled the plugs on your cylinders? If you do that, you can poke a flashlight in one spark plug hole and look in the other, then repeat the other way around. A borescope would be even better. You could at least get some idea of the condition of the inside of all of your cylinders.



KB


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