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Fuel Pump Selection

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I put the Carter 4070 on my '59 Bugeye. Without a regulator, I measured over 6 psi at the carbs. The HS2s required a regulator. I installed a Holley low pressure, adjustable regulator (?1804?), set the pressure at 2 psi, and all is fine.
 
Ahh, thank you John. I thought a regulator might be required with the Carver. Must get all the ducks in a row before I start ordering anything...
 
One more question:

RE the Carter. Having only viewed them online so far, the size is difficult to judge. Is there a consensus for the mounting location? If someone has a photo of their installation, that would be appreciated too...
 
Cool, thanks; I was concerned if the pump could be mounted horizontally (on its side), or if it had to be mounted upright. If I am looking at your pics correctly, sideways mounting is okay?
 
Um, I think of it as upright. Wires at the bottom, fuel comes in from the side towards the top and goes out the other side towards the top. Mine came with instructions and a mounting bracket that fit right into existing screw holes on my car. Maybe you are looking at the old filter, it looks horizontal.
 
Okay, glasses now on the 49-year-old eyes. I see; the pump is indeed vertically mounted. It seems the pump fits well. I had no point of reference to judge its size from the internet pics I've seen.

Allrighty then. While I hunt down the gremlin, I'll get the regulator and pump ordered.

Many thanks for all the input; owe all you guys one. Again.
 
Just received the Carter pump and the Holley regulator (pictured with old Mitzu pump):

PICT0003-3.jpg


PICT0002-4.jpg


I'm waiting for my "Painless Wiring Kit" (lazy, I know) and my pressure gauge:

"Pressure Gauge, Low Pressure Diaphragm, Dial Size 2 1/2 In., Range 0 to 5 psi, Dial Size 63 mm, Connection Size 1/4 In NPT, Connection Location Lower, Graduations 0.1 psi, Accuracy +/-1.5 %, Case Material Steel, Case Color Black, Socket Material Brass, Tube Material Beryllium Copper, Lens Material Polycarbonate, Operating Temp. Range -40 to 140 F"

XL-2RHC8.jpg


Next step is a stop to Napa to try and find appropriate fittings to make all these work together. The fittings on the old pump are quite small (~1/4"), so should I find fittings of that size, or change out the fuel lines to accommodate larger fittings?

Also, the gauge will be used to set the pressure, but it will not be left in place. Is there a fitting available which would allow the gauge to be "quick" attached/detached, or is a plug going to be needed?

Any thoughts on all this in general?

Thanks!
 
If you'd bought a little 1" gauge instead of a 2 1/2" one you COULD leave it in place.. LOLOL... NAPA should have all your fittings. Once the regulator is set, (it comes preset and you shouldn't have to change a thing) just use a plug to seal it back up. You shouldn't need to reset it again until you have to change fuel pumps.

Now that I think about it, you may have problems with mounting clearances with a gauge that large, that is you won't be ABLE to remove it, depending upon the fittings you get from NAPA. Just something to consider. Where were you planning on putting the regulator?
 
my regulator was mounted inside the engine compartment on the inner body panel above the drivers side damper. i removed it when i installed my p4070 but i'm using a weber...

Bill, you mentioned that you're waiting for a wiring kit--didn't your pump come with wires? mine came with a nice set of push on/ pull off wire caps and a ground wire. It also came with a section of hose that was too short and some el cheapo clamps. I went out and bought 2 feet of 3/8" hose, some clamps and a metal filter. You might want to think about putting a filter between your tank and your new pump.

s
 
The wiring kit includes wires, connectors, on/off switch, and 40 amp relay. I decided to wire the pump independently. That will allow me to search and destroy the electrical gremlins as a separate problem. I did also pick up a filter for use between the tank and the pump.

You can see wiring kit here:

https://www.thehoffmangroup.com/keepitclean/product.lasso?prodinc=relayharnesskits

I thought I'd mount the regulator in the engine compartment, for easy access. That particular gauge should help me get a pretty accurate setting, and then I'll just plug that fitting afterwards.

Should I bother with a filter ahead of the SU, or call it done at that point?
 
...Oh, and one of my local racing buddies suggests I use 'TFE Pipe Thread Sealant' on all the connector unions. Any thoughts on that?
 
Never hurts to have filter just ahead of the carbs. It'll be easy to see when it's dirty and time to swop it out. .. I use Teflon tape on all screw tubing and hose fittings. I've heard that gasoline will eat it up and it's heard its not recommended, and when i've taken apart the connections in contact with gas, the tape has been eaten up, but i've never had leak either. If the stuff is being dissolved, it's going right on into the engine and being burned up!
 
same problem that I had with the 4070- weber was DROWNING in fuel. Plus the thing was gawdawful noisy. I never could find a way to mount it to be quiet. I had considered about going to an early model OEM style on my 79. Gave up and stuck the mechanical one back in.

I'd like to know where you mounted the pump and your results using this setup
 
I will take photos as the install progresses; have to do this in an unheated garage and between work, so give me a few. For now here's the box-o-parts, less the wiring kit I'm expecting:

PICT0004-3.jpg
 
Strangely warm today, so I have started the installation.

I am using an existing mounting hole to begin with; here's how that places the pump bracket:

PICT0001-3.jpg


Before drilling the addition holes for the bracket, I decided to try a 'test' installation of the pump, including wire jumpers:

PICT0002-5.jpg


Regulator test set-up:

PICT0003-4.jpg


So far: Pump works well, no leaking at connections. Regulator already set close to 2lbs, so I'll leave it for now. I do have leaks at the joints. I did not try any sealing measures; just tightened. I will have to re-do the regulator connections.

So far, so good, however. Updates to follow~
 
Lookin' good, Bill.

Hey, did you take a pressure reading of the pump without the regulator? I'm just curious.

I was able to get all the connections to seal without any additional measures so it is possible. The hose fittings don't thread in all the way down to the ends of the threads but they will tighten up enough. My regulator was attached to the inner fender wall with a hose clamp screw fitting.
 
I thought about checking the output of the pump itself, but was assured that it would be "around six pounds" according to a customer service dude, so I decided to just carry on.

I went ahead and (carefully) used the pipe thread sealant, and re-tightened the fittings. No leaks after a 15 minute run at idle. I'll keep an eye pealed, but I think I'm okay.

Interestingly, the car at first needed choke for a bit longer than usual, seeming to want a higher idle setting. But, once warmed up, the idle is actually higher than usual by about 200 to 300 RPM. I will have to tinker a bit. Nothing new there.

The pump is a rather loud little bugger. Very noticeable prior to starting, but I can't hear it once she's running.

Still to do:

I have not yet installed a bracket for the regulator.

Still have to drill two holes for the pump bracket.

Run the wiring in a more appropriate fashion, as opposed to across the passenger seat, the rear carpet, and out a speaker hole.

FIND THE GREMLIN.

All in all, I'm pleased and relieved, and impressed with all the help. Thanks people.
 
Bill,

I have the same set-up. I used teflon tape. I suppose I should go get some TFE and redo the connections. I have not yet run the car. 76 Midget, 4070, Weber 32/36, Pierce, holly regulator. Pump mounted where vapor canister was.

Tracy
 
Tracy, I was told not to use tape, but to use the TFE, as tape could break down over time. Not knowing firsthand, I simply followed the advice.

The can of TFE in the photo earlier cost me $11.00, and since I hate doing anything twice, I went with it. If you notice, I skipped using it at first, so I did have to do it twice anyway. I'm stupid like that.

Share photos of your setup if you have a chance...
 
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