https://www.ford-trucks.com/forums/1...ld-thread.html

A link to my build thread (see last post on vapor lock problem) - I am getting a bit desperate to figure this issue out! After heat soak, truck absolutely will not start. New ignition coil, ignition switch, rebuilt carb, running 4 psi, new plastic fuel filter in engine bay, all rubber lines are up out of the way of the engine. What am I missing folks?? Is there some electronic component I am overlooking? Timing is set to 10*.

HELP!

 

Well you know the problem. Finding the cause of no fuel is the remaining issue.

Not sure this year had them but the efi system had a plastic reservoir on the frame rail prior to the pressure pump. My 86 BR II had a filter in it , my 87, 88 & 90 didn't. A little research will reveal what psi the lift pumps had.

 

Good to know. After taking a closer look, it appears that in addition to the aftermarket fuel filter in the engine bay, the PO left the old fuel filter along the frame in place. Could it be as simple as a bad fuel filter? I would think that performance would be an issue, but I don't seem to have problems running, just hot starting.

ncranchero, my fuel pump is in the tank....would I also have a pressure pump? Never heard of one of those before, but then again, there's a lot I haven't heard of.

 

http://www.ebay.com/itm/FUEL-TANK-RESERVOIR-FORD-E150-250-350-F150-250-350-RANGER-BRONCO-BRAND-NEW-/181607507550?hash=item2a48a6a65e&vxp=mtr
This is what I'm talking about, reservoir.

If it was originally EFI then yes, a reservoir and a pressure pump. I just don't know if an 87 460 was equipped with EFI.

 

Note, I may be barking up the wrong tree. I'm just throwing out possibilities.

 

Any info I can get is good. Mine was originally an 87 351W. The 460 was swapped in and carbureted at some point in the distant past.

 

...but along the frame rail I didn't see anything other than the filter. But who knows, it's easy to miss stuff when you aren't specifically looking for it. I'll double check later.

With all the stuff I've added, if I pull the fuel line from the carb, it seems to pump plenty of fuel after heat soaking. I'm throwing a lot of parts at the carb setup and my two main questions are:

1) Is there anything I can do to tune the carb (i.e. pressure, mixture, etc)
2) is it possible the carb is getting fuel after all and I have an electrical issue
2b) If the problem is electric in nature, what would be most likely to fail?

And thanks for all the replies so far. I like spit balling and thinking of non-obvious solutions.

 

351/5.8L

Article here says 87 could be either carb or efi. Someone who knows more than me should post .... hopefully.

 

Sorry if I was unclear before, I am pretty sure it was originally EFI

 

Anybody else wanna chime in? ncranchero is doing all the heavy lifting in this thread. Help a brother out!! By the way ranchero, is the nc for North Carolina? I used to be a hippy from Boone, but then I got a real job

 

If your truck has the item ncranchero is posting it is right below the cab on the inside of the frame rail.


Is your fuel line possible to close to the engine where heat can cause it to vapor lock? I had this happen on our generator.
Trav

 

Yep, live between Hickory & Charlotte. Boone's nice. A nephew graduated and niece is about to from Appalachian. My baby girl graduates the 9th from Gardner-Webb. I thought the hippies were all in Asheville!

Man, you have a real puzzle there.

Vee-Dubs, had more of them than I have Ford trucks!

 

I thought this might be the case, but I clipped the lines to the firewall and when this issue occurs, I can disconnect the fuel line from the carb and the fuel flows freely.

 

I would love to make it back to NC one day. I used to think Asheville was where it's at, but I've embraced the southern lifestyle lately and now if feels too yuppie for my blood. I'm more of a rip-down-dirt-roads-and-get-loud kind of guy these days. Plus, I think I might want a gun rack just for grins - not a great way to make friends in Asheville.

I love the VW. Seems like every part is $10 or less.

 

Still barking.

If originally a 5.8L EFI then the pumps ,including the one in the tank, were activated by a relay (green) through the inertia switch. The relay or even the inertia switch , IF still included, could fail. The relay more likely than the switch.