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Fuel Pumps


NR240

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Hey Nigel

 

I got a fuel pump through Costa , i think there off a sigma , Just have to mount it to the near the tank. I think from memory it pumps at about 10psi.

There are two wires that come out near the fuel tank, which you can connect straight to the pump and then re trace the wires back to the fuse box where you only have to bridge the terminals and its done. Costa mentioned that they sometimes hard to find , (somepeople cut them out) , but on mine it took only about 30 minutes to do the whole job.

 

cheers

Richard

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Richard did it make a difference? I get some vapour lock issues on hot days, (ie 35 C), if the car is being cained and heating up. From memory Nate had the same problem & I think after installation of electric pump vapour lock issues were sorted.

Have you fellas had any fuel starvation issues on hot days?

Cheers

Sulio

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Costa's are off a bluebird I think running an L20 I know it's a Nissan. I was going to fit one but never got around to it due to it missing the internal filter Costa was supposed to get one for me but I understand he's busy and my mechanical one runs fine.

 

As Richard said the install is fairly straight forward most 240z's have wiring in place for the pump. You will want to fabricate a bracket for it or you could probably use a 260z style one that's what i was going to do but as I said i haven't got around to it yet.

 

Sulio I don't have overheating issues in my Z however I've always had fluted bonnet and the stock 240z air box. From memory your running two K+N filters that are sucking up all the hot air from the extractors. That would be the first place I'd look. Another words try and find a stock 240z air box. :D

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NR240, are you running carbies or efi? I've put a VL commodore fuel pump in mine, but I'm running an L28E - Cost me $50 for the pump, secondhand, then a couple of bits of hose + clamps..... I ran a power wire from the pump (next to the tank) all the way through the body on the RH side, along the existing loom, using the same retaining clamps as it, then followed the loom across the firewall, behind the dash to the LH side where my ecu is, and my earth wire is bolted to the subframe right next to the pump. But I've got all the trim and carpet out of mine, and my centre console isn't bolted in, so....

 

If you are running carbies though, you need a lower fuel pressure, so ensure the pump you get runs at carbie pressure.

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Zeddophile,

 

Running Carbies, the main reason was to try and stop vapour lock on hot days so you dont look like a retard hopping down the road when the lights turn green at 35 degrees.

 

From what Richard was saying it looks like this might solve it, my mechanical pump works fine, but i may as well change to electric as it doesn't seem to be that costly or difficult to do.

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  • 1 year later...

My 260 only has the mechanical pump so I'm considering fitting an electric also. Main reason I'm thinking of doing is to help cold starts. Would this be the case ie less cranking to get her to fire? Don't know if one way valve (if there is one) in mechanical is ok as after sitting for respray couldn't get her running and pupm wasn't sending any fuel through. Had to squirt fuel into float bowls to get her to run and then I assume suction from the engine running gave it the help it needed.

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  • 1 year later...

My mech pump shit itself today i think its the pump (tested it no fuel to the carbs), had a half tank petrol. It might be the filter or the pump not to sure or theres a block. Was running fine Saturday but couldnt start it this morning. Any ideas please i need a car and my lancer also shit itself wont start either. Just my luck... :(

Repco said 170 for new mech pump but i seen this http://www.thezstore.com/page/TZS/PROD/PFFC05/11-3072

Could i fit this in the engine bay or do electric pumps need to be next to the tank...

Cheers

Sach

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My mech pump shit itself today i think its the pump (tested it no fuel to the carbs), had a half tank petrol. It might be the filter or the pump not to sure or theres a block. Was running fine Saturday but couldnt start it this morning. Any ideas please i need a car and my lancer also shit itself wont start either. Just my luck... :(

Repco said 170 for new mech pump but i seen this http://www.thezstore.com/page/TZS/PROD/PFFC05/11-3072

Could i fit this in the engine bay or do electric pumps need to be next to the tank...

Cheers

Sach

Sach i have a replacement mechanical one that might be for sale. It was working perfect 1 month ago when it came off :)

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Thanks Glen, i'll definitely keep it in mind, im not yet sure if its the fuel pump or if the filter is clogged. If it is the fuel pump i was thinking to a an electric one, because the factory mechanical pump i dont think can cut it with the triple dellortos.

Cheers

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i had a recent issue with fuel pumps.

 

like Craig's it will occasionaly stop. but mine being efi that was causing few issues. my pre pump was failing (a holley blue)electric feeding a VL turbo high pressure. basicaly ran good till u boot it. than jus splatters and dies.

 

after searching around found out that holley was still value for money so i ended up replacing it with new holley red no more issues. lot more quieter and no issues of engine splatting. looks like the bearing need to be replaced in the blue.

 

u can get holley blue with reg for decent price. otherwise any of the repco, sprint replacement will do the trick. make sure you change all the fuel filters. when changing the fuel pump.

 

still i think electric is more relaible than the mechanical ones and makes engines start bit easier.

i had issues starting my 240z with mech pump. plumbed in my old 260 z electric and had no issues. even after sitting for few months just let the pump prime hit the key and it was running .and this still with blown head gasket.

 

 

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Hey Sach, a electric fuel pump wont really help with cold starting; the carbs already have fuel in the floats before you turn the key. I remember with my dellorto's, 3 pumps of the pedal then start... Most of the time it worked....then we have Winter to deal with!

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