Just some good advice.

STOP USING THAT ETHER!

Rog

 

Thanks Nate.
When it first started, ran 5 minutes and died, the fuel bowl was empty when I opened it. I did fill it and put new filter in. I can hear what I think is the fuel pump kicking on when I turn the key, but still no start.

 

Plugged line or fuel filter before it reaches the engine-mounted housing?

 

I don't think whatever you're hearing is the fuel pump kicking in since the fuel pump in these trucks is mechanical and sits just behind the fuel bowl (unless you have e-fuel, which I doubt you do since you still have the fuel bowl). Are you 100% sure you got all the rubber lines hooked back up correctly? Was the truck running like it should be before you started all this? Does it do the same thing on both tanks? It really sounds like you aren't getting any fuel if the filter housing is empty when you open it.

You can check the fuel pressure at the schrader valve on the side of the fuel bowl. You should be seeing around 20PSI while you're cranking it. If you're not, then you have a problem somewhere that isn't letting you get fuel.

 

Does your veggie oil system include an electric pump conversion?

 

It was running fine. I just changed some old bad hoses. It started just fine, ran 5 minutes and died.
Though I was sure I marked hoses and put back right, I'm starting to wonder....but it ran fine for those 5 minutes.
Everything I'm reading now is leading to the fuel pump you spoke of. I was leaning away from that as it was replaced by a dealer shop 3 months ago.

I don't think this veggie system has electric pump conversion.

 

Ok Guys,
In case I didn't volunteer this and you haven't figured this out, I'm not much of a mechanic.....just a guy tryna be thrifty. So please excuse any dumb questions.

So far, things are leading me to the lift pump(mechanical fuel pump) being bad.
I don't have any guages to test psi, so would it make sense to unhook a fuel line at the right place and turn engine over to see if it's at least getting to the pump?

 

All you need to check the fuel pressure is a stick style tire pressure gauge. Just watch your face because it may spray some diesel; use a rag to contain the spray. Have someone crank the truck while you hold the pressure gauge on the schrader valve (like a tire valve stem) on the side of the fuel bowl. If you aren't seeing 20 PSI or so, you have a fuel issue.

I have a hard time believing that the fuel pump just died. They tend to leak badly from a little weep hole in the bottom when they go bad. They don't generally just quit. It also seems like quite a coincidence that it all started just after you removed and replaced all the hoses. Have you tried filling the fuel bowl and then starting the truck?

Let's take it one thing at a time and eliminate some other things before you spend your hard earned dollars on a pump you may not need.

1 Check the fuel pressure and report back. (I'm guessing it is going to be zero)
2 Does it do this on both tanks (and do they both have diesel in them)?

 

OK, first off, my VO guy called me last night and because of all the extra lines there'e alot more air to purge out of system, so battery is on charge....prolly gonna cost me a starter!
And zero pressure on both tanks-did fill fuel bowl. Plenty of fuel in tanks.

Giong back to the beginning; as soon as we got hoses changed it fired right up and ran for 5 minutes, and I had drained the bowl while we were doing the work-I did not refill it before we started it.
No doubt I think at this point getting no fuel. Could there be that much air in the lines?
VO system runs in a "loop" mode, unless in purge mode, which is how VO guy said I need to have it in while trying to start.

 

Well it seems to me that you have a bad fuel pump, I dont think about much air in the lines.

 

Without knowing the layout of the WVO kit, I guess I can't say for sure whether or not air would be causing the problem. What are the chances of getting your WVO guy to look at it? I wonder if you would be able to use a little air pressure in one of the tanks to push the fuel into the lines. I will be really surprised if it is, indeed a bad fuel pump. If you're still using the old mechanical fuel pump (which I guess is a bit of an assumption) they don't just fail out of the blue. They generally leak like a sieve and that's why people end up replacing them. And if you drained the fuel bowl and then the truck started and ran, that tends to indicate to me that the fuel pump was working.

As for the starter, the best solution there is to crank in 30 second cycles and let it cool for a couple minutes between cycles so it doesn't get too hot.

I'm running out of ideas and without knowing what was done to the fuel system to convert it to run WVO, we're just guessing.

 

Mruelh:
I did some back tracking on this thread and apparently you high-jacked this thread with your problem, that being said, that may be the the reason that your full sequence of events leading up to your problem have not been told.

First: At any time before your 5 minute run had you removed the stock lift pump?

#2 Had you dis-assembled the fuel bowl and if so did you have any parts left over?

You mention that there is a solenoid that switched VO to Diesel and visa verse. Does this valve direct the VO through the lift pump the same as diesel?

#3 Have you by-passed this valve to assure that it is not a problem?

Just some thoughts.

Rog

 

Hey Kawa, if hijacking threads is bad manners I apologize.
1-fuel pump was replaced 3 months ago. I did not remove it during this process.
2-did have fuel bowl unmounted-screen is missing, have ordered one;but will that keep it from running?
3-have not by-passed valve;2 valve sytem(supply and purge)are new, installed a month ago.
DIY-I have another post in alternative fuels, entitled "WVO Problem" with pic and explanation of lines. I will try and figure out how to post link.

 

YOu have two threads related:
https://www.ford-trucks.com/forums/1...n-lines-2.html
https://www.ford-trucks.com/forums/1...o-problem.html

BTW dont worry about hijacking, here is very common and often

 

Let's just carry on the process at the other thread (in the diesel section). I didn't realize there were other ongoing threads about the issue.