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  #1  
Old 10-27-2013, 06:16 PM
Veetail88's Avatar
Veetail88 Veetail88 is offline
 
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Default Oil leak above the oil pan/intake plenum

I have an oil leak. It originates between the crank case halves just above the oil pan/intake plenum. Will torqueing these bolts a bit more seal this or is it a bigger problem?

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  #2  
Old 10-27-2013, 06:29 PM
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Russ McCutcheon Russ McCutcheon is offline
 
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Default

It probably won?t help but it?s also probably not a problem, I have heard some say there engines don?t leak; personally I have never seen a dry Lycoming with more than a hundred hours. If it?s pouring out then ok maybe a problem, if it just has drips hanging off the bottom and everything underneath has a shine of oil on it that?s normal.
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  #3  
Old 10-27-2013, 06:37 PM
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My Leakoming has several spots like yours. It doesn't consume extra oil however. I clean it once in a while with cloth using avgas. You will see these oily spots in some weird places on your engine.
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  #4  
Old 10-27-2013, 07:24 PM
Bavafa Bavafa is offline
 
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Quote:
Originally Posted by Vlad View Post
My Leakoming engine.
I have one of those engines as well.
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  #5  
Old 10-27-2013, 07:29 PM
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LifeofReiley LifeofReiley is offline
 
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Default

Sorry Jesse, that is not a leak. Just a confirmation of a healthy aircraft engine.
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  #6  
Old 10-28-2013, 06:58 AM
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Unfortunately Lycoming and many others still use 60+ year old techniques (silk string) to seal cases halves and they will leak sometimes in short order. In this case it appears the sump gasket was put on dry (another way to ask for leaks) and because of that there is nothing effectively sealing that corner. You might try removing the sump and replacing the gasket with it rubbed on both sides with Titeseal.

And yes they can be made to not leak, I was just looking over the weekend at an A65 Continental I built several years ago that operates several hundred hours a year and it only had some minor seepage around the cylinder bases.
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  #7  
Old 10-28-2013, 07:39 AM
csmith3603 csmith3603 is offline
 
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Default Oil seal

Dang, that Rocketbob always has the best solutions,,, Go Army.
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  #8  
Old 10-28-2013, 07:43 AM
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Quote:
Originally Posted by csmith3603 View Post
Dang, that Rocketbob always has the best solutions,,, Go Army.
Should only take about "10 minutes" to pull the sump and reseal
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  #9  
Old 10-28-2013, 08:16 AM
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RV8iator RV8iator is offline
 
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Default Come on Walt

Quote:
Originally Posted by Walt View Post
Should only take about "10 minutes" to pull the sump and reseal
I know this is a tongue in cheek remark..

It really takes about 30
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  #10  
Old 10-28-2013, 08:50 AM
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Default Cheek

Quote:
Originally Posted by RV8iator View Post
I know this is a tongue in cheek remark..

It really takes about 30
And that's just to get the cowl off!
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