My OB Provent set up
#1
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I used a 45 degree 12 AN pushlock and a 90 degree with pushlock hose for the inlet in to the Provent. i epoxied a 12AN-1/2NPT fitting in to the provent for the 90 degree to attach.
the suction side will have a hose run down to the exhaust scavenge attachment.
the oil return is 1/2 hose with the Provent check valve, then 10AN hose and fitting in to the oil return cover port i welded a 10AN fitting on. if i ever have to redo this, id use 8AN line being it a little thinner. i had to JB weld a brass sleeve over the bottom of the check valve to get a snug fit over the 10AN line.
![](http://i575.photobucket.com/albums/ss197/Ducman82/928/IMG_0691.jpg)
the suction side will have a hose run down to the exhaust scavenge attachment.
the oil return is 1/2 hose with the Provent check valve, then 10AN hose and fitting in to the oil return cover port i welded a 10AN fitting on. if i ever have to redo this, id use 8AN line being it a little thinner. i had to JB weld a brass sleeve over the bottom of the check valve to get a snug fit over the 10AN line.
![](http://i575.photobucket.com/albums/ss197/Ducman82/928/IMG_0691.jpg)
![](http://i575.photobucket.com/albums/ss197/Ducman82/928/IMG_0692.jpg)