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  #1  
Old 10-25-2019, 08:02 PM
JimWoo50 JimWoo50 is offline
 
Join Date: Oct 2005
Location: Chicago sw suburbs
Posts: 405
Default Fuel leak on shutdown

Appreciate any ideas why my ma4-spa carburetor would leak on shutdown. 534 hrs never worked on. TIA.
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N9855J RV-6 Donated 2020

Last edited by JimWoo50 : 10-26-2019 at 04:54 PM.
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  #2  
Old 10-26-2019, 04:19 PM
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sirlegin sirlegin is offline
 
Join Date: Feb 2006
Location: Keller, Texas
Posts: 311
Cool

Prior thread on this subject
http://www.vansairforce.com/communit...d.php?t=114156
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Last edited by sirlegin : 10-26-2019 at 08:38 PM.
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  #3  
Old 10-26-2019, 10:31 PM
JimWoo50 JimWoo50 is offline
 
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Location: Chicago sw suburbs
Posts: 405
Default I read that.

Not quite the same situation but still good info.
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  #4  
Old 10-26-2019, 10:42 PM
lr172 lr172 is offline
 
Join Date: Oct 2013
Location: Schaumburg, IL
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Default

most likely are debris in the needle/seat or a leaking accel pump seal. Do you notice overly rich symptoms at full rich? Do you know where the fuel is leaking from specifically on the carb? Leak is likely occurring all the time, not just on shut down.

Larry
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  #5  
Old 10-27-2019, 08:23 AM
JimWoo50 JimWoo50 is offline
 
Join Date: Oct 2005
Location: Chicago sw suburbs
Posts: 405
Default Thanks Larry

I should add that on my last two short flights at low idle on the ground the engine was running rough not in the misfiring kind of way but seemed that every combustion event seemed more violent and jarring. Increasing rpm mitigated this though.
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