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Tilting Inverted Oil Valve

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Guido Lepore

Well-Known Member
Jul 2, 2007
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Long, grey, wet winter with the firewall all exposed, so WTH, decided to pull the Christen Inverted Oil Ball Valve off the firewall and send it back to Christen for an inspection. They said it was fine, balland seats wereOK, no sludge,and sent it back. Not bad after 27 years in the aircraft.

Anybody have any opinion on whether I should angle it back 15 degrees on a small bracket instead of bolting it back to the firewall in the upright position?

Some say the 15 degree of lean will help keep some oil pressure on those long vertical lines. Nobody ever plans on flying a 15 degree line.


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