jj13
Active Member
I have a fuel inject Superior 320. Over the last few months I have been experiencing intermittent low fuel pressure until now where it is consistently low (5 - 10lb) The backup pump must be run for the engine to stay running. Knowing that the engine driven fuel pumps are very reliable I started looking else where. What I found is what appears to be a failure with the fuel plunger and the cam(see the pic)
So I have two questions; any ideas how this could happen, could this be a defect in the plunger or cam?
Second - To fix this will obviously require pulling the engine and accessory case. What I was thinking was just adding a second electric fuel pump forgoing the mechanical pump. I have dual electronic ign, so I'm already electrically dependent. My bigger concern is hot starts. The mechanical pump vs. the full pressure of the electrical pump on startup.
any help would be greatly appreciated!
https://drive.google.com/open?id=11R_CoALWDaYxOngywuOlrDkMaiadZ_muyw
So I have two questions; any ideas how this could happen, could this be a defect in the plunger or cam?
Second - To fix this will obviously require pulling the engine and accessory case. What I was thinking was just adding a second electric fuel pump forgoing the mechanical pump. I have dual electronic ign, so I'm already electrically dependent. My bigger concern is hot starts. The mechanical pump vs. the full pressure of the electrical pump on startup.
any help would be greatly appreciated!
https://drive.google.com/open?id=11R_CoALWDaYxOngywuOlrDkMaiadZ_muyw