I pulled the MAP hose off and threaded the mystery screw into the barb. Perfect fit and the torque seal marks lined up.
Mystery solved. Now I can start this baby up!
Thanks VAF community. What a great resource!
RV 12 under construction
RV 7A N561EV Sold
West Chester Pa
[COLOR="rgb(46, 139, 87)"]=VAF= Paid up 2017[/color]