When installing o-rings it is important to place a small amount of light oil on both the o-
ring and the mating surface to ease installation and prevent damaging the o-ring.
5.
Thread the o-ring side of an ORB-08/AN-08 port fitting, such as P/N 15607, into the HP
regulator bypass port and connect an AN-08 return line from the regulator up to the return
fitting in the top of the fuel cell. The return flow must enter the tank in a manner that does
NOT upset the fuel pump pickup or disturb the outgoing flow to the fuel pump. Avoid an in-
tank drop-tube for the return that extends deeper than 1/3 down from the top of the fuel cell.
6.
Thread the o-ring side of an ORB-10 to AN-10 port fitting, such as P/N 15608, into the HP
regulator outlet port and connect an AN-10, high pressure fuel line with AN hose-ends to the
regulator outlet port and up to the dead-head regulator mounted at the carburetor.
7.
Attach a suitable 0-30 PSI fuel pressure gauge to the HP regulator test port if desired.
Note: The HP Regulator is adjustable from 14-24 PSI line pressure and has been pre-
set for 18 PSI from the factory, ample to feed most dead-head style regulators.
Plumbing Diagram for Engines using Dead-Head Style regulator at the Carburetor such
as Aeromotive Pro-Stock 4-Port P/N 13208 and 2-Port P/N 13210.
