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  #1  
Old 01-13-2017, 05:40 PM
A2022 A2022 is offline
 
Join Date: Apr 2011
Posts: 2,425
Default found oil on the floor, grounded

I had been weeping some oil at the front end and had contacted Superior with pictures but it was inconclusive until today. I walked into the hangar and found oil on the floor and more on the cowl. I am grounded.













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  #2  
Old 01-13-2017, 05:50 PM
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sbalmos sbalmos is offline
 
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Location: Liberty Twp, OH
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Default

Front crank seal?
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  #3  
Old 01-13-2017, 05:55 PM
A2022 A2022 is offline
 
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I don't know. There is also an o-ring on the constant speed prop. Suspect it is a front crank seal or the constant speed prop seal.
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  #4  
Old 01-13-2017, 05:55 PM
DavidAhrens DavidAhrens is offline
 
Join Date: Feb 2007
Location: Bakersfield, CA
Posts: 95
Default Oil leak

Not good! Not trying to be funny but with that much oil leaking shouldn't be hard to find. Looks to be maybe Propeller to crankshaft area which in sealed via a O-ring. Also appears to be a Whirlwind Propeller?
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  #5  
Old 01-13-2017, 05:59 PM
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sbalmos sbalmos is offline
 
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I couldn't remember if you had a CS prop or not. I'm betting prop seal, based on how it was able to pool on the edge of the air intake of the cowl. Crank front seal is too far back, but was the only idea if the prop was FP.
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  #6  
Old 01-13-2017, 05:59 PM
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roadrunner20 roadrunner20 is offline
 
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Location: Andrews, NC (KRHP)
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Looks like the crank seal. Check to see if there's oil pooling inside the ring gear hub.
I replaced my split crank seal on my superior io360 at about year 2. I'm now in year 10.5 without it leaking. I replaced it with a non-split variety.
It's fairly easy to replace as I was surprised how it stretched over the ring gear hub.I sealed it with pliobond as recommended by the lycoming manual.

Update: I have a fixed pitch prop
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Last edited by roadrunner20 : 01-13-2017 at 09:09 PM.
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  #7  
Old 01-13-2017, 06:02 PM
A2022 A2022 is offline
 
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Quote:
Originally Posted by roadrunner20 View Post
Looks like the crank seal. Check to see if there's oil pooling inside the ring gear hub.
I replaced my split crank seal on my superior io360 at about year 2. I'm now in year 10.5 without it leaking. I replaced it with a non-split variety.
It's fairly easy to replace as I was surprised how it stretched over the ring gear hub.I sealed it with pliobond as recommened by the lycoming manual.
I saw oil inside the ring gear hub but not on the fwd side.
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  #8  
Old 01-13-2017, 06:04 PM
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roadrunner20 roadrunner20 is offline
 
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mine was on the aft side as viewed as in your last picture
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  #9  
Old 01-13-2017, 06:06 PM
A2022 A2022 is offline
 
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seems that I'll be replacing a front crank seal soon.
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  #10  
Old 01-13-2017, 06:15 PM
gasman gasman is offline
 
Join Date: Mar 2007
Location: Sonoma County
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Default

If it is a crank seal, do check your crankcase vent......

have fun winding that spring...........
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