[Richard]

I gotta ask stupid questions. What led you originally to conclude this was a fuel issue?

Have you checked for any engine error codes?

You did not comment if you observed air bubbles in the Davco.

Seems to me that the first step in diagnostics is to determine if the problem is the fuel pump, or the fuel supply.

If this were me, the first step would be to disconnect the fuel inlet from the Davco and use appropriate plumbing fittings to feed fuel from a 5 gallon jug directly into the Davco fuel inlet. If the engine runs like that, then you have eliminated the fuel pump.

Based upon the results of that diagnostics. The mechanical fuel pump on a Series 60 is not very good at drawing a vacuum. It is a gear pump, not a diaphragm pump, meaning it doesn’t move air very well at all. You can buy rebuild kits. Pretty simple to replace the seals and gaskets. Pay attention to the seal orientation. One is oriented to keep fuel in the pump, and one is oriented to keep oil in the air compressor. Get it backwards and something will leak out the weep hole.

If the problem is now the fuel supply. A couple of understanding points to make. One, there is a check valve in the line. It is located just beyond the point where the line exits the tank. Two, because of that check valve, pressurizing the line back in to the tank does not work. To disconnect the fuel line, the vanity panel on the tank must be removed. Then I used a crow’s foot wrench to get into the space and loosen the connection to the fuel pick up tube. Third, the Newell provided priming pump is tied into the fuel line, but IIRC the connection is beyond the check valve.

If you pump the priming pump furiously for a couple of minutes, do you get the fuel level in the Davco to rise?

817 223 2056

I feel you buddy. I was stranded like this and trying to avoid a tow at all costs.