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  #1  
Old 05-28-2017, 12:23 PM
flyinga flyinga is offline
 
Join Date: Dec 2007
Location: Fredericksburg, TX
Posts: 662
Default Need help with FI nozzle
IO360 angle valve with AFP injection. After condition inspection,with the engine running and the boost pump on I got a significant fuel smell in cockpit. Took cowling off and noticed a significant blue stain on lower front right inside of cowl. Turned boost pump on (engine not running) and fuel poured out of #1 injector! No fuel out of others. I swapped #1 and #3 injectors and leak followed injector (not cylinder).

During the condition inspection I cleaned injectors with Hoppe's #9. All the injectors look the same and #1 is not clogged.

This has got me puzzled???
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  #2  
Old 05-28-2017, 02:06 PM
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Toobuilder Toobuilder is offline
 
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When running the boost pump (engine off), what was the throttle and mixture position?


Also not sure... When you describe that fuel is "pouring out"... Are the injectors installed for flight, or are you doing the flow check with the injectors removed?
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WARNING! Incorrect design and/or fabrication of aircraft and/or components may result in injury or death. Information presented in this post is based on my own experience - Reader has sole responsibility for determining accuracy or suitability for use.

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1940 Taylorcraft BL-65
1984 L39C
Last edited by Toobuilder : 05-28-2017 at 02:09 PM.
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  #3  
Old 05-28-2017, 03:15 PM
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Carl Froehlich Carl Froehlich is offline
 
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I suspect the fuel injector nozzle fell out of the fuel injector.

Carl
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  #4  
Old 05-28-2017, 03:15 PM
flyinga flyinga is offline
 
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Injectors were installed for flight. Fuel pouring out of the screen. Mixture full rich and throttle wide open. The other three injectors shot fuel into intake which of course drained out of the sniffle valve (horizontal intake).
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  #5  
Old 05-28-2017, 04:26 PM
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Toobuilder Toobuilder is offline
 
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Yep, first thing is to see if the insert is in there.
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WARNING! Incorrect design and/or fabrication of aircraft and/or components may result in injury or death. Information presented in this post is based on my own experience - Reader has sole responsibility for determining accuracy or suitability for use.

Michael Robinson
______________
Harmon Rocket II -SDS EFI
RV-8 - SDS CPI
1940 Taylorcraft BL-65
1984 L39C
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  #6  
Old 05-29-2017, 06:50 AM
flyinga flyinga is offline
 
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You guys were spot on! I didn't notice when I re-installed the injector. Now if I can just find the **** thing....
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  #7  
Old 05-29-2017, 06:57 AM
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Jesse Jesse is offline
 
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I have a bunch of extras in my shop. Give me a call in the AM and I can stick one in the mail for you.
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  #8  
Old 05-29-2017, 07:23 AM
TS Flightlines TS Flightlines is offline
 
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Look around the inner baffles----ask me how I know

Tom
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  #9  
Old 06-09-2017, 09:36 AM
flyinga flyinga is offline
 
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Jesse Saint sent me a restrictor and all is well? Thanks Jesse!
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