I'm hoping someone has the manual for installing the Christen Inverted Oil System? I need to know where on the firewall to install the ball valve assembly. it's been 15 yrs since I last installed one, and sold the airplane, but recall it's alignment is something like level with sump port and to the outside drawing a vertical line from engine to firewall....something like that. Can someone cut n paste the guidance point me to the source of this manual, so I can install the ball valve assy? I'm building the DR-109 with IO-540. thank you check
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Inverted Oil Sys Manual
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