Thanks again for all the help. I've got 90% of the lines and stuff now. The truck I was pulling them off of had a few broken ones from someone pulling the dually rear end, but i'm going back later today to grab the rest. Also dug into my truck and found half the purge lines still in place, and the fuel pump wiring roled up and strapped to the frame. The inertia switch and charcoal canister are still there too. So a few lines, external pump and full fuel tank assemblies should be the majority of the easy stuff. Then,i guess it's fingers crossed that it all works. Stay tuned? Haha

 

Hi,

I have a 5.8l with a dual fuel setup propane @ gas on a '91 F150 4x4. The propane was added when I bought the truck new. If it wasn't for the backwards emissions law here in Australia i would ditch the gas and emissions and go for a propane only setup. The propane has a much higher octane rating and is held back by the standard computer setup. A properly setup propane system would be as good as any gas setup. Propane is big here, I have heard of high horsepower motors that run propane. The timing on my 351 is set at 12 degrees instead of 10 to help bridge the gap between the two.

cheers

 

Yeah,i see the benefits of propane, but no amount of fiddling seems to get it running right, and without building the motor for it, it seems like there will always be power and economy left on the table. I've honestly tried to get it going on the propane, but it'll be cheaper to swap back to gas than to pay someone else just to attempt to fix it again. I've used the only 2 propane experts in town now. One is stumped, and the other did nothing but rip me off for $400 and give it back to me.

So while I appreciate the benefits of propane, i'd rather have a vehicle that I can work on myself, and i'm not that interested in the expense of building it properly to run straight propane effectively and reliably.