What have you done to your square lately??

[idahovette]

@CoggedBelt75 Joe I really don't see anything to criticize!!!!......Good lookin truck!!

 

[84-C20]

Today was tune up day / try to deal with an on going pinging issue. So full tune up, spark plugs, cap, rotor, wires, fuel filter, PCV valve and oil change. I was honestly a little afraid of what I'd find with the spark plugs but they looked great, used and warn but not to rich or lean and no signs of damage from the pinging, which I try not to let it do to much of. Oh also replaced the EGR valve.

I've got a new distributor and planning to put that in this afternoon if I can. I've got an almost 250 mile drive to take tomorrow in the square, and it would be nice to have that done before the drive, but also I realize time wise it may not be practical.

I should have taken a picture....

 

[82sbshortbed]

The last two distributor swaps i did took 30 mins. Mark the old one then drop new one in with rotor in same place then fine tune timing. I was really surprised how easy it was. And that's the first time for me doing that too. Maybe I got lucky. But. It was just as easy the second time I did it.

 

[83Burban]

I'm battleing a Frankenstein nightmare. This whole tuck, im learning, was Jerry rigged and half assed every step of the way.

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Pretty sure this pump does not belong in the engine compartment. And this home made pressure regulator / return line set up is....well, kinda strange. Its 5/16 at the pump...the fitting they had at the regulator block was 3/8. Then, back to 5/16 fuel line they ran directly over the headers.

Ive been wrong before....but im pretty sure this is like 90% wrong. Lol.

 

[Bextreme04]

I'm battleing a Frankenstein nightmare. This whole tuck, im learning, was Jerry rigged and half assed every step of the way.

You must be registered for see images attach

Pretty sure this pump does not belong in the engine compartment. And this home made pressure regulator / return line set up is....well, kinda strange. Its 5/16 at the pump...the fitting they had at the regulator block was 3/8. Then, back to 5/16 fuel line they ran directly over the headers.

Ive been wrong before....but im pretty sure this is like 90% wrong. Lol.

What the meth????

Do you not have a mechanical fuel pump boss on your block? I though the Gen V 454 blocks USUALLY still had the pump boss on them. I know the pump boss randomly disappeared on the small blocks but I thought for sure the Big Blocks kept it later into the fuel injection change-over.

 

[83Burban]

What the meth????

Do you not have a mechanical fuel pump boss on your block? I though the Gen V 454 blocks USUALLY still had the pump boss on them. I know the pump boss randomly disappeared on the small blocks but I thought for sure the Big Blocks kept it later into the fuel injection change-over.

Mechanical fuel pump was removed. There is a plate where one would mount.

Ive got a pretty full tank...going to try to get by on this set up untill I run the fuel mostly out before relocating the pump back by the tank where it belongs.

Going to install a propper Holley fuel reg/bypass while im at it.

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[Bextreme04]

Mechanical fuel pump was removed. There is a plate where one would mount.

Ive got a pretty full tank...going to try to get by on this set up untill I run the fuel mostly out before relocating the pump back by the tank where it belongs.

Going to install a propper Holley fuel reg/bypass while im at it.

You must be registered for see images attach

I'd pull that plate and see if its machined for the pump rod. Sometimes the spot would be there, but it wouldn't be drilled. Or drilled, but not finish reamed. If its all there and you have a carburetor, I'd dump all of that and go back to a mechanical pump. Those Mr. Gasket electric pumps are notorious for taking a dump, even when right next to the tank. Just ask @Grit dog, I'm pretty sure he went through several since he has a Gen VI with no fuel pump boss, so he didn't have a choice.

 

[bucket]

I'd pull that plate and see if its machined for the pump rod. Sometimes the spot would be there, but it wouldn't be drilled. Or drilled, but not finish reamed. If its all there and you have a carburetor, I'd dump all of that and go back to a mechanical pump. Those Mr. Gasket electric pumps are notorious for taking a dump, even when right next to the tank. Just ask @Grit dog, I'm pretty sure he went through several since he has a Gen VI with no fuel pump boss, so he didn't have a choice.

That one looks like a mark IV block with it's fuel pump boss and rounded cast surfaces on the block face.

Gen V block:

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[83Burban]

@bucket

Can you point me in the direction of some good threads on the topic of pumps and pump conversions?

Lol I have a hell of a time navigating forums on my phone. And I just have SOOOO many questions.

 

[84-C20]

The last two distributor swaps i did took 30 mins. Mark the old one then drop new one in with rotor in same place then fine tune timing. I was really surprised how easy it was. And that's the first time for me doing that too. Maybe I got lucky. But. It was just as easy the second time I did it.

I decided against installing the distributor today. In the end what stopped me wasn't the time, it was what if I get a defect unit, it's all well and good if it happens at the moment of start up at home, but I don't want to be on the side of the highway if I can avoid it. If that were to happen I'd rather it be local.

 

[Grit dog]

I'd pull that plate and see if its machined for the pump rod. Sometimes the spot would be there, but it wouldn't be drilled. Or drilled, but not finish reamed. If its all there and you have a carburetor, I'd dump all of that and go back to a mechanical pump. Those Mr. Gasket electric pumps are notorious for taking a dump, even when right next to the tank. Just ask @Grit dog, I'm pretty sure he went through several since he has a Gen VI with no fuel pump boss, so he didn't have a choice.

Good memory.
Yes my truck has no fuel pump boss.
Got the truck with a pump like that mounted up under the hood. Looked pretty new. It lasted a few tanks of gas and so did the next 2 pumps. Btw, my fuel pickups are clean and clear.
I relocated mine back down by the fuel selector valve. Used the same cheapo looking pump but an Edelbrock.
It’s lasted longer but I haven’t driven it since last fall.
It’s not a permanent 100k mile solution and if the truck starts getting driven long distances but it should last much longer being lower and much closer to the tanks.

mine was jerry rigged too. Was pulling power from some scotch lock connection to an old original little 16 ga wire on the engine.
So them not lasting could have been low voltage, but I doubt it because the pump motors still ran and sounded the same.

Bulletproof solution, I need to either suck it up now and install in tank pumps while I have the bed off, or mount a quality pump down there somewhere and install a regulator.

Given the choice like it appears you have, I’d 100% get a mechanical pump back on it.

 

[TotalyHucked]

What company do you work for?

I work for Auto Metal Direct


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[78C10BigTen]

I work for Auto Metal Direct


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Lucky you!

 

[83Burban]

Good memory.
Yes my truck has no fuel pump boss.
Got the truck with a pump like that mounted up under the hood. Looked pretty new. It lasted a few tanks of gas and so did the next 2 pumps. Btw, my fuel pickups are clean and clear.
I relocated mine back down by the fuel selector valve. Used the same cheapo looking pump but an Edelbrock.
It’s lasted longer but I haven’t driven it since last fall.
It’s not a permanent 100k mile solution and if the truck starts getting driven long distances but it should last much longer being lower and much closer to the tanks.

mine was jerry rigged too. Was pulling power from some scotch lock connection to an old original little 16 ga wire on the engine.
So them not lasting could have been low voltage, but I doubt it because the pump motors still ran and sounded the same.

Bulletproof solution, I need to either suck it up now and install in tank pumps while I have the bed off, or mount a quality pump down there somewhere and install a regulator.

Given the choice like it appears you have, I’d 100% get a mechanical pump back on it.

Why do you prefer a mechanical to the in-tank route? I'm still learning theory behind all of these systems and am genuinely curious.

Tbh......i think I'm more likely to go the in-tank route. My reasoning is that i'm kind of considering swapping the carb for an EFI set up. Pretty sure I would have to go back to an electric pump if I do end up doing this. The fancy Holley unit requires some 58psi.

This thing needs to be daily drivable and get better than 5mpg (like she is). I'm driving her for work. Already yanked the eddy 750 off and went to a 600. I do believe 750 is EXCESSIVE for an unbuilt motor.

I do have access to a lift and all the fancy tools you could ever want....so dropping the tank is not quite as much of a suck fest. Ive also got zero adversion to "installing" a service hatch for ease of future repairs. This truck has been molested every which way....so it cant "hurt" the value.

 

[Blue Ox]

Anybody consider a frame mounted inline electric pump like a Delphi HFP950?

They're suitable for carburetors since they only make about 5 psi. You can probably connect it through a pressure switch to regulate it if necessary, and then you don't have to go through any tank gymnastics to change it if it quits.