E-fuel issues - Ford Powerstroke Diesel Forum
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Old 09-24-2013, 08:16 PM
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E-fuel issues

So I'll try to be concise as I can in my story. Thanks for reading. I have a 1997 F250 7.3.

6 years ago, I had a shop install a veggie system. First there's the tanks, then a heat exchanger, then a Napa 3364 fuel/water separator. Then a FASS pump (don't remember the specs, not on their website, but it is the right pump for the truck). Then the stock fuel bowl. That is the system. Of course, along with it, is a mess of fuel lines under my hood with a lot of hose clamps, but it's held good for all these years.

I don't use veggie anymore, but the system is great and hasn't failed me for years, even with running out of diesel a couple of times.

Now I know I'm an idiot, but I ran out of diesel again recently. It was on a busy road, a cop stopped to watch my truck as I ran to get some diesel. Amidst the commotion, I left my key turned to electrical on, which ran my pump. Now I was gone for 20 minutes and my the FASS pump ran dry for all that time. I put diesel in, started it up after a few minutes, made it to a gas station, filled up and putted home.

The FASS pump wasn't sounding right, so I took off the outlet line and there was no blowing of diesel or air. Pump dead, right?

It was out of warranty and I was in a pinch and could not afford a new FASS. Napa had a Bosch 044 in stock. I hooked it up, and the truck started right away, beautifully. But all of a sudden, diesel was leaking from everywhere. I tightened down a bunch of hose clamps and most of the leaks, but one was coming from under the fuel bowl. While removing the fuel bowl, the driver side return line was apparently really brittle and snapped. I had to remove the ac compressor and the block in order to replace the line.

My truck is still all apart.

My question is: before I put everything back together, is the above system, with the Bosch 044, is it going to work great and be fine? I'm not sure if all the leaks occurred from running out of diesel and getting air bubbles in the line, or if it's from the 044 having more power than the FASS. The FASS is physically bigger, but is the 044 have more power and volume? Should I put everything back together and hope there's no more leaks, or do I need to add something to my new 044 system to regulate pressure better than the stock bowl?

I don't have enough skills, time, energy, and funds to do a whole new e-fuel setup. I would really like to keep it as close to the current setup as possible, without leaking diesel everywhere and blowing up. My old mechanic left town and one of the only diesel mechanics in town won't touch my truck without going back to a complete stock fuel system. I don't think I want to do that, nor can I afford the labor involved in that.

Thank you so much for reading and any advice is much appreciated.

Caleb
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Old 09-26-2013, 01:37 PM
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That pump and your fuel bowl may not be compatible, you are sending pressurized fuel to the fuel pump that may then be sending even higher pressure to your fuel bowl that cannot handle that pressure.

Since you already have half the e-fuel setup I recommend finishing the job by getting rid of the fuel bowl. There is a guy, I think he is on powerstrokenation named markfuga, is selling a budget kit that should finish the job up for you for under $150, fuel block, hoses and clamps included. Search his name there and look up e fuel build. He even has a how to video on his thread using his stuff. He uses the existing fpr guts off your existing bowl.
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Old 09-26-2013, 09:18 PM
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wow. thanks. kit looks sweet. video is super helpful. looking into it. thanks again.
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