Join Date: May 2007
Location: Alma, Ark
Feedback Score: 0 reviews
Re: '85 F250 6.9 electric fuel pump
Ok, so tonight I went to attempt to start the truck. I took a full set of tools, stopped by Advance Auto, and purchased a fuel filter and valve core tool. I tried to purchase some fuel line to bypass the fuel separator, but they didn't know the correct size.
So, I arrived at the truck, checked the fuel separator that was already bypassed (Alleluia!) hooked up the batteries, (praying that they had enough charge to start the truck) and turned the key once. Sure enough, there was enough charge.
So, at this point, I removed the fuel shrader valve core, and attached a length of clear hose into a gallon jug to check fuel flow. It took about 20-25 seconds of cranking to see several squirts of fuel into the hose.
Seeing that, I re-installed the valve core and made an attempt to start the truck. After about 25-30 seconds of cranking, it fired up and idled fine. I reved it up a little to check fuel flow, and it ran like I would expect. I didn't run it long, because the coolant system is currently empty.
Now, I noticed that several of the injectors are moist and several return lines are also moist. Since I make my own biodiesel, I will need to purchase viton fuel line, injector return line, and possibly viton injector o-rings. What size fuel lines does this engine use? Any sources for viton fuel lines and o-rings?
Next, maintenance items (other than fluid/filter changes) should I do that are specefic to this engine? Thanks all for the help so far.
Luther KB5QHU Alma, Ark
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