Need Help Diagnosing Fuel Delivery Issue

[WWRD99]

Yeah i plan on posting pictures of the pumps later - the one i pulled off of it that i got a replacement for is the incorrect one that does not work. But you can see when comparing them that both the plunger arms are still slightly different, even though they are the same style, which makes it even weirder that it worked for so many years .......

After putting on the correct one last night, i got fuel to the filter within about 10 seconds of cranking.

And i have a big boster charger hooked to the batteries that i turn on whenever i am going to try to start it. Havent left it on overnight as i worry about it getting hot.

Mine has been converted to 12 volt too

Yeah the difference is the arm angle. They look identical at a glance and most don't think about it. So it's 12 volt...did they change the battery cables to a larger guage? If you have a 10 or 20 amp setting and good water levels they should be fine. Check the starter for the front bracket if you haven't already. They have to change the starter in the conversion...might have left it off.

Sent from my SM-S906U using Tapatalk

 

[huskerfan]

Yeah the difference is the arm angle. They look identical at a glance and most don't think about it. So it's 12 volt...did they change the battery cables to a larger guage? If you have a 10 or 20 amp setting and good water levels they should be fine. Check the starter for the front bracket if you haven't already. They have to change the starter in the conversion...might have left it off.

Sent from my SM-S906U using Tapatalk

I believe they did yes. Like i said, it has ran fine for years with no issues lol

And yes i have replaced the started many times with the gear reduction one as i usually go on 2 river trips each year and the starter isnt a fan of being swamped in 3-4' of water, but O'reillys and their warranty always comes through lol

 

[Barrman]

Yes, I am the Tim in the video.

Delphi HFP906 is the only mechanical pump I know currently sold new that works and can deal with the biodiesel.