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240z Electric Fuel Pump Installation

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I metered it yesterday, picked up a couple bullet connectors, hooked it all up. No switch currently at the inside harness... Just jumpered them. I did find, however, maybe it wasn't just the fuel pump. 

I saw the lower section of hose below the filter looked twisted or collapsed. It was actually squishy and sticky. Clogged up and rubber deteriorating. Gad zooks!!! Replaced. Car started right up. So maybe it would've run without the electric pump. But all set now ;)

 

Trying to post a couple photos but not working right now.

Edited by thumper300zx

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Got my tank back in the car for the 2nd time... Accidently buried the wires between the tank and the body on the 1st attempt and had to lower the tank to get my wires out. Now for the pump install. Here's the legend and the pics;
Pic1 - Here's all my parts for mounting the pump to the tabs on the tank. New wire connectors, rubber pad to put between plate and pump, nuts & bolts, etc. My Buddy Dangerous Dan fab'd my mounting plate.
Pic1a.jpg
Pic2 - Pump, filter and nipple on mounting plate with new electrical connector.
Pic2a.jpg
Pic3 - Tabs on tank & new electrical connector
Pic3a.jpg
Pic4 - Plate w/pump mounted to tank - note rubber between pump and plate, hopefully that will keep it pretty quiet
pic4a.jpg
Pic7 - View of pump on plate looking straight up from ground - I think the pump is well enough protected
Pic7a.jpg
Now I'll do the jumper in the console.
Edited by w3wilkes
Couple of corrections

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Eureka! I looked and looked for the connector in the location referred to in this image

FP_Wiring1_SML.jpg

and couldn't find it in my series 1 (12/70) 240Z. I finally found it. There's a wire bundle right in front of the console in the passenger foot well  that has a naugahyde snap together boot around it. The blue taped connector for the fuel pump wires was in that bundle of wires.

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Nice. Hard to tell from the pic, is there just one bolt holding the bracket to the tank?

Edit: doh, I missed the pic with the two tank holes. 

Edited by JSM

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@Jeff,

From your sig... 300ZX coast to coast when you're 50! Enjoy the trip.

If you turned 50 today I would have had my drivers license for over a year already when you were born. My first 240Z was a '73 that I bought brand new for my 22nd birthday present to myself. It was my daily driver for 20+ years until it rusted to death from Utah winters. I still wasn't tired of the car so now I have the '71, but it's no longer required to be a daily driver.

 

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Edited by w3wilkes
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I finally finished mine up. I had mine mounted with all this hose running in a big loop and didn't like it. I made small metal gas line and eliminated all the extra line hanging. Tucked so much better.  Return line is flowing great too. It was plugged about 3 feet in the engine bay. 

I must say my car does run considerably better. I think my old mechanical pump was dying. 

 

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10 hours ago, w3wilkes said:

So you're running 2 fuel filters before the pump?

Yes for the time being and I have a third one right before the rail too. I had some rust I wanted to make sure I got out. 

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On 8/6/2017 at 11:13 AM, thumper300zx said:

I metered it yesterday, picked up a couple bullet connectors, hooked it all up. No switch currently at the inside harness... Just jumpered them. I did find, however, maybe it wasn't just the fuel pump. 

I saw the lower section of hose below the filter looked twisted or collapsed. It was actually squishy and sticky. Clogged up and rubber deteriorating. Gad zooks!!! Replaced. Car started right up. So maybe it would've run without the electric pump. But all set now ;)

 

Trying to post a couple photos but not working right now.

Trying photos from PC instead of phone... Good, it worked -- also -- it makes quite a bit of noise where it's mounted. Kind of annoying. I might move the location. Anyone else's loud? Might just be because it's mounted to the tank tabs and it's a big hollow tank (less than 1/4 tank full).

 

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Edited by thumper300zx

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Mine was only loud until it primed. Then I can hear it hum some, but once running I hear nothing. 

What is that clogged line from?

Edited by JSM

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Mine probably won't get started for another few weeks due to other priorities. I'm hopeful that with the rubber pad I used between the pump and the mounting plate I have a similar outcome to Jeff's!

I'm also curious about the clogged line and glad I haven't found anything like that!

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On 8/14/2017 at 7:13 PM, JSM said:

Mine was only loud until it primed. Then I can hear it hum some, but once running I hear nothing. 

What is that clogged line from?

It was on the small section of hose just before the fuel filter. My hypothesis is the filter was catching some gunk and then it was sinking (gravity) while the car sat and eventually accumulated. I haven't seen this anywhere else. Clean fuel flowed out wherever else I've detached fuel line. Though it's been years since I did my tank, I don't see any other signs. Also, once I replaced this hose the car ran fine.

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On 14/8/2017 at 8:13 PM, JSM said:

Mine was only loud until it primed. Then I can hear it hum some, but once running I hear nothing. 

What is that clogged line from?

Well i am replacing mine with another airtex 8012s electric pump, as the actual one i just supplying 2.9 psi and my car is starving at idle. Whenever i go up a hill i need to open the choke. The pump was accidentally painted black when the car was restored last year. I am also considering to replace both 5/16 in and out of pump rubber hoses and clamps with new ones. Anyway, is it really recommendable to add and additional fram g3 fuel filter isnt the metal one that comes with the pump enough? I already have dorman glass fuel filter at the engine bay.

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On 14/8/2017 at 8:13 PM, JSM said:

Mine was only loud until it primed. Then I can hear it hum some, but once running I hear nothing. 

What is that clogged line from?

Do you think the hoses are correctly connected and routed allowing free pressure and volume flow?

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24 minutes ago, jalexquijano said:

Do you think the hoses are correctly connected and routed allowing free pressure and volume flow?

If you have doubts about fuel flow to your carbs, do a capacity check using the figures I provided you in one of your other carb threads earlier this week..  You've already done a pressure check according to earlier posts.  Those are two quick ways to eliminate worries about pump based carb starvation.  Let me know what results you get after running the tests.

Dennis

 

 

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If the pump is oriented in the proper direction and the clamps are tight, turn it on and check for leaks. No leaks, fire it up. You'll probably take it for a spin but if it doesn't run well, remember, we still need to verify the fuel height in the nozzles at 2 1/2 turns down. Then we can move on to fine tuning.

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