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Old 07-12-2010, 03:45 PM
RV10Rob's Avatar
RV10Rob RV10Rob is offline
 
Join Date: Mar 2007
Location: Woodinville, WA
Posts: 533
Default Torque for oil/fuel hoses

I'm hooking up my engine, starting with the oil pressure hose. The Lycoming overhaul manual seems to call for 30 in-lb torque on this hose; however, this ends up being less than half a flat from hand tight, so it seems like it could come loose easily. Also, it's much less than we'd typically use on aluminum tubing and fittings. Am I missing something here?

Excerpt from Lycoming manual (courtesy of Gil):http://i644.photobucket.com/albums/u...la/torques.jpg

-Rob
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Old 07-12-2010, 04:03 PM
WilburD2 WilburD2 is offline
 
Join Date: Aug 2007
Location: Houston, Tx
Posts: 163
Default Not suprising..

To quote Dr. Leonard McCoy; When in doubt the book prevails. Press on with that small a torque. but for your own peace of mind, apply a small dab of torque seal on the fitting to see if it actually breaks free during operations.
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Last edited by WilburD2 : 07-12-2010 at 04:04 PM. Reason: spelling correction
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