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FWF Fuel Line Torque Values

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napolin(at)me.com
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Posted: Wed Mar 14, 2012 8:42 am Post subject: FWF Fuel Line Torque Values

I am wondering what the correct torque value for the FWF fuel and oil lines is.  The Lycoming Overhaul Manual has fairly low torque values for "flexible hose or tube fittings " in the order of 30 to 35 in-lbs with corresponding values of over 100in-lb from Aeroquip and similar sources.  Not sure which values to use.

Thanks

Niko

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rv10flyer(at)verizon.net
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Posted: Wed Mar 14, 2012 9:17 am Post subject: FWF Fuel Line Torque Values

I used Aeroquip's settings for all lines. (brake, oil, fuel, etc)



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napolin(at)me.com
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Posted: Thu Mar 22, 2012 1:20 pm Post subject: FWF Fuel Line Torque Values

Pascal



Thanks for the reply.  I notice that the torque values for some of the fittings themselves such as fuel inlet to fuel servo are lower than what Aeroquip specifies for the hoses.  I wonder if the intent is to have a lower torque onthe flexible hose fitting than the fitting to fuel servo so one doesnot inadvertantly loosen the fitting from the fuel servo while removing the flexible hose.



Nikolaos Napoli



On Mar 14, 2012, at 1:16 PM, Pascal <rv10flyer(at)verizon.net> wrote:



[quote] 

 

 I used Aeroquip's settings for all lines. (brake, oil, fuel, etc)

 

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