Builds New Mexico Pig Build

[abqcruiser]

Thanks Tucker,

I've read your build thread several times while doing this swap. I actually bought the same fuel pump that you used. The only difference is I mounted it on the body back in the cargo area where I thought it was most protected. So I guess I should move it. I can actually hear it standing outside the vehicle over the exhaust noise.

 

[tucker74]

I mounted mine on the frame rail, I isolated the mounts with rubber bushings I found at my local auto parts store (“Help” brand). I could hear a high pitched whine when I turned the ignition on, but certainly not over the exhaust. I think the body is amplifying it, mine was in an open top 40. Now saying that, the in tank pumps are awesome if you’ve got the $$ ...

 

[abqcruiser]

I like the idea of the in tank pump, if I could just use my current tank. Even though the Fitech version says it will work in tanks 6"-12" deep, I don't think there's enough space for the fuel lines on top. I'd also have to fab a new access in the cargo area. Yes, this is a great time to consider a long range tank, but I'd be creating a ton more work and expense for myself. Also, I wouldn't be making it to the Party.

 

[J Mack]

I like the idea of the in tank pump

You could buy a Bosch 044 and it can be used as a submersible pump (in a fuel cell) or as an inline pump (mounted outside the tank). I run these in one of my Pigs and they work great.

After the pig party start working on your long range tank and use the same pump in the new tank.

 

[wngrog]

The FiTech stuff is great ... but spendy. I got my system to work with just an in-line Aeromotive fuel pump, others have had to use a fuel pressure regulator but I didn't. I put it on the frame rail just over the rear tire, you can hear it but not obnoxious. Lots of info here:

3FE adventure -

Good luck!
Tucker

BTW: The vented fuel cap will make a huge difference, back pressure will make it cut out ... and it returns a ton of fuel to the tank

Is the stock 60 gas cap vented? I think it is. Just thinking some of my EFI issues are fuel pump issues with it getting hot when the fuel level gets low and it has to work harder.

 

[tucker74]

Is the stock 60 gas cap vented? I think it is. Just thinking some of my EFI issues are fuel pump issues with it getting hot when the fuel level gets low and it has to work harder.

It is not, check your evap system ... if it's not functioning it will cause problems (especially when hot).

@abcruiser, I assume you've seen this thread:

My 45PU has an LV for a friend...

 

[wngrog]

I’ve got a good clear system with new charcoal.

Ive been running it way low looking for non Ethanol. I think I’ll keep it full next trip and see if that’s what my issue has been.

So, should I drill a little hole in the 60
Cap or just leave it alone?

Sorry for hijack but it’s efi relevant

 

[tucker74]

So, should I drill a little hole in the 60

That's what I did in the 40, you can check pretty easily if this is your problem ... when it's cutting out stop and remove the cap. If there is a ton of pressure bingo

 

[fj55-100]

I mounted mine just in the stock sender hole . and just recently enlarged it to access the sender that i moved over . pump is stock lx470

 

[abqcruiser]

I mounted mine just in the stock sender hole . and just recently enlarged it to access the sender that i moved over . pump is stock lx470 View attachment 1698161

Are you still running with the stock fuel tank?

 

[abqcruiser]

I’ve got a good clear system with new charcoal.

Ive been running it way low looking for non Ethanol. I think I’ll keep it full next trip and see if that’s what my issue has been.

So, should I drill a little hole in the 60
Cap or just leave it alone?

Sorry for hijack but it’s efi relevant

Not a hijack at all. I'm going to have to find a vented cap. Or do what you're thinking, drill a hole.

 

[abqcruiser]

It is not, check your evap system ... if it's not functioning it will cause problems (especially when hot).

@abcruiser, I assume you've seen this thread:

My 45PU has an LV for a friend...

I have been following his build, good stuff in there. Dom's is getting interesting as well:

Just had to treat myself for Halloween... 65 SWB

@cruiserbrett has reached out to me as well, to help with any wiring issues. What a great community!

 

[abqcruiser]

You could buy a Bosch 044 and it can be used as a submersible pump (in a fuel cell) or as an inline pump (mounted outside the tank). I run these in one of my Pigs and they work great.

After the pig party start working on your long range tank and use the same pump in the new tank.

Thanks Jim,

You're the voice of reason, as always. I think I'll go this route and get the pig on the road.

 

[fj55-100]

not stock , old Man A Fre 50 gall one

 

[PabloCruise]

Pretty sure this is the pump I went with - 1988 Ford F-250:

Fuel Pump - Electric In-Line Type

 

[PabloCruise]

Pretty sure this is the pump I went with - 1988 Ford F-250:

Fuel Pump - Electric In-Line Type

You can kind of see my lay-out here:

From: POTM - March, 2014 - Javelina By Pablo Cruise

It looks like the same pump @pappy is running:

3FE adventure -

 

[PabloCruise]

I'm having issues with the fuel delivery. The fuel pump is very loud and runs erratically. The engine revs up just fine , but has trouble settling into a smooth idle. On the fuel rail there's a pulsation damper on the supply side and a pressure regulator on the return. I've replaced both with aftermarket parts, OEM is NLA. There's a loud ticking sound, that I think is coming from the pulsation damper as if it's hammering up and down. I can't tell if it's due to what I think is a bad fuel pump, or is either the pressure regulator or pulsation damper bad? Oh, and apparently I don't have a vented gas cap. There was a pretty good vacuum being created when I tried to remove the cap. I've since just left it loose, so air can be drawn in. Installing a fuel pressure gauge is on my to do list.

Have you checked you fuel pressure in the rail? Confirmed the return line is flowing well?

Are you sure your have vacuum in the tank? Usually after a few trips up to the engine compartment and back, the fuel in the tank is getting warm, and there will be pressure (positive) in the tank. If the evap system is working, that pressure will vent into the charcoal canister which will trap gasoline vapors until such time as the ECU deems it ideal to pull a vacuum on the can and purge the vapors into the intake for combustion.

Not sure how folks are thinking of a vented fuel cap... Any kind of cap and tank for EFI should let air in, but not vapors out. You don't want a cloud of gas vapor surrounding your vehicle every time you stop. You do want a cap that will let air back in after you park and the fuel in the tank cools off and the positive pressure in the tank turns into a negative pressure after the fuel mass has cooled.

 

[wngrog]

Have you checked you fuel pressure in the rail? Confirmed the return line is flowing well?

Are you sure your have vacuum in the tank? Usually after a few trips up to the engine compartment and back, the fuel in the tank is getting warm, and there will be pressure (positive) in the tank. If the evap system is working, that pressure will vent into the charcoal canister which will trap gasoline vapors until such time as the ECU deems it ideal to pull a vacuum on the can and purge the vapors into the intake for combustion.

Not sure how folks are thinking of a vented fuel cap... Any kind of cap and tank for EFI should let air in, but not vapors out. You don't want a cloud of gas vapor surrounding your vehicle every time you stop. You do want a cap that will let air back in after you park and the fuel in the tank cools off and the positive pressure in the tank turns into a negative pressure after the fuel mass has cooled.

What cap do you recommend?

 

[abqcruiser]

Have you checked you fuel pressure in the rail? Confirmed the return line is flowing well?

Are you sure your have vacuum in the tank? Usually after a few trips up to the engine compartment and back, the fuel in the tank is getting warm, and there will be pressure (positive) in the tank. If the evap system is working, that pressure will vent into the charcoal canister which will trap gasoline vapors until such time as the ECU deems it ideal to pull a vacuum on the can and purge the vapors into the intake for combustion.

Not sure how folks are thinking of a vented fuel cap... Any kind of cap and tank for EFI should let air in, but not vapors out. You don't want a cloud of gas vapor surrounding your vehicle every time you stop. You do want a cap that will let air back in after you park and the fuel in the tank cools off and the positive pressure in the tank turns into a negative pressure after the fuel mass has cooled.

Hey TJ,

I had that thought the moment I typed about drilling a hole in the gas cap, bad idea. The current cap is definitely not letting air in, so I need to replace it with one that does.

This 2fe is desmogged, so maybe I'm simplifying things too much. Currently my line from the charcoal canister is running to a port that's tapped into the front of the intake manifold. I was assuming that the moment the engine fires up that a vacuum is created and the vapors would be drawn into the intake without any help from the ecu.

Since Pig Party 2017, when I was having vapor lock issues, I've since fixed the problem. So I think the evap system is working. Besides, wouldn't running the engine with the gas cap off eliminate a venting issue? The fuel pump still struggles without the gas cap on.

 

[Ol Yeller]

Pump struggling with cap off certainly eliminates any vent related issue to the pump...hmmm