Well, the Pierburg Universal fuel pump arrived and I'm still stuck.
Pierburg Universal Pump Inlet/Outlet Fitting Issues
I didn't expect this kind of difficulty when I started a separate thread on the Tech Forum:
Fuel Pump Switch - CIS to Pierburg Universal
The 5/16" barb fittings (supply/inlet and feed/outlet) on the Pierburg fuel pump are permanently molded to the body of the pump.
Meanwhile the supply line/elbow on my fuel tank appears to have a 1/2" barb, while the tunnel feed line seems to be very close to a 5/16" barb.
As such I can run a 5/16 ID feed hose from the Pierburg pump to the tunnel line, but I can't seem to find an appropriate adapter / reducer to connect the fuel tank's 1/2" barbed supply line to the Pierburg's 5/16" supply/inlet -
no one makes a 1/2" barb to 5/16" barb union reducer.
The closest fittings I have found are a 1/2" to 3/8" and a 3/8" to 5/16". I ordered both of these fittings to see if either will suffice.
Next Up - Correcting My Throttle Linkage
Stopped by Harbor Freight today and picked up a metric tap & die set. I need to shorten the throttle rod that extends from the transmission to the bell crank on the side of the PMO manifold.
I'm going to cut the rod about 1" shorter (as per jpnovac's recommendation in this thread
PMO install and throttle linkage). Will update with pic's as I dig into this one.
Bottom Line - Delay of Game for my PMO Carb Tuning.
Gordo