s14 diy walbro fuel pump install-- mucho pics!!

[steve s14]

i didn't see a fuel pump install write up for an s14 so i though that i should do one.

you will probably want to do this install with a tank that is half full, if you do it with a full tank, you'll have to reach down into the fuel to get the pump out and again to reinstall it. if you do it with an empty tank, the new pump might not prime and the car won't start until you add more fuel.

now that thats out of the way, on with the install!!!

parts needed will be fuel tank o-ring, heat shrink tubing, pump kit for and s13 and an install kit for a 97-01 prelude. unless walbro put together a pump kit for an s14, but last time i checked they don't have one yet.tools needed or recommended are, a flash light, a pair of pliers, 10mm socket and ratchet, #2 phillips screw driver (the tip that looks like and x), a soldering iron, solder, heat gun.

first, fold down the rear seat, remove the trunk mat and pop off the 2 buttons that hold the carpet down with you hand by reaching behind the carpet and pulling.

then pull back the carpet and push it through the trunk tunnel and over the rear seat back to expose the panel to the fuel tank.

remove the 4, 10mm screws and pull the panel back

unplug the 2 connectors and 3 hoses

there is a tool to remove the plastic ring but i'm poor and can't afford the tool so i ate some wheaties and used all of my massive hand strength to unscrew the ring like a stuck pickle jar lid. i knew jacking off a lot would payoff eventually!! all kidding aside, if you aren't able to unscrew the ring, try using a large flat blade screwdriver and a hammer and place the screwdriver on one of the ribs on the plastic ring and tap it with a hammer to turn the ring in the counterclockwise direction.once you get the ring off, put it aside and pull the top off and throw way the fuel tank o-ring. you will see 2 connectors underneath the top cover, unplug the bigger one with 3 wires coming out of it.

then reach down and pull the pump up off the bracket in the tank and remove the assembly, it just slides upwards. the picture is kind of blurry but you can barely see the bracket.

unscrew the wires off of the pump and remove the old pump from the bracket.put the prelude fuel pump sock on the fuel pump, install the tiny circular clip that holds the sock onto the pump. put the short piece of rubber hose on the other end, and install the rubber thing from the s13 kit on the bottom of the pump underneath the sock. put the clamps on the hose and install the pump onto the fuel pump bracket.

with the prelude sock, it's facing the same way the old pump sock faced.

if you use the s13 sock on an s14, you may run into fuel starvation problems on a low tank since the sock is facing the wrong way and at the wrong angle.

i know my hands are dirty, but they are strong

here is a picture of the install kits neededpart numbers are 400-766 s13 install kit 400-865 prelude install kit

take the plug with the wires that went to the original pump and lay the connector end from the s13 kit next to it so that it matches it's original lenght. then cut the ends off of the original wires and strip the ends off of the wires on both the connector kit and the original wires.

you can use the butt connectors that came with the kit or you can solder it like i did. i don't trust butt connectors in a place that i can't reach easy incase there is a bad connection so that's why i soldered them.put the heat shrink tubing on and then solder the wires together. use a heat gun or a lighter to shrink the tubing over the solder joints.the red wire goes to the red wire, the red wire with the white stripe goes with the black wire.

then put the assembly together and it should look like this when you are finished.

put the new fuel tank o-ring (part number 17342-79900) on to the opening and reinstall the assembly. don't forget to plug the 3 wire connector back on to the bottom of the top before installing it into the tank.



screw the plastic ring back on and install the 3 hoses and 2 connectors. put the panel back on and install the 4, 10mm screws. pull the carpet back over and pop in the clips. put the trunk mat back in place and fold the rear seat back.turn the key in the ignition until all the light come on but don't start the engine. leave it on for a few seconds and then turn it off again. repeat this about 2-3 times. this primes the fuel system. that's it!! your car is one step closer to making big power with your new 255 walbro fuel pump.

[Repo Man]

Thanks for the write-up and pics steve!

[thekawaii]

vote for sticky

[thekawaii]

i knew jacking off a lot would payoff eventually!!

get a freaking girl friend LOL

[eds13]

good write up!

[turbo2nr]

nice write up. im alittle confused about one thing. do you have to buy a s13 and a prelude pump kit from warbro to make the s14 pump work correctly?

[DesignedByKay]

I know Walbro doesn't make KIT for S14. And S13 sock is too short and small for S14 gas tank.

[steve s14]

no, you just need the walbro fuel pump kit for an s13 and the install kit for the prelude which costs around 12 dollars.

[ExpressFuelPumps.com]

no, you just need the walbro fuel pump kit for an s13 and the install kit for the prelude which costs around 12 dollars.

Great thread Steve. We were informed recently about the fuel filter situation and are including the longer prelude filter on all of our S14 fuel pump sales. We actually have a Nico club discount on these pumps in this thread = zerothread/193769

BTW, do you think we can get your permission to use some of these pictures you posted on our website?

[steve s14]

feel free to use the pictures. i don't mind, i did the writeup to help the community, and nico sponsors are part of the community too

it's about time someone stopped selling the damn s13 pump kit for the s14

[sean90]

This is great, I just got a 96 240sx and the last owner had his mechanic brother install a fuel pump and he forgot to connect a wire, so i have no gas gauge. I'll take a look at it tomorrow, i had no idea how to get to it before. thanks for the guide

[ExpressFuelPumps.com]

Thanks again Steve, we put it on our website and in our new eBay auction the other night =

http://cgi.ebay.com/ebaymotors...ZWDVW

Credit to you and your website are at the bottom of both

[steve s14]

glad to be of help! as long as it's alright with greg (nico ceo), it's ok with me.i figure since this is his forum, the information i post is his property. i also got a custom title out of it thanks for giving me the credit though, that was cool beans! by the way, the website is just the place that i used to host the images and it doesn't belong to me. it is a good and reliable site to host images on so it's good that they get credit too.

[ExpressFuelPumps.com]

If you want me to change the link or name just let me know and I can have it done right away We will probably have our own write up for this car and the s13 within a month.

[NOAH041283]

I recently got a walbro for an s14 but didn't recive the correct sock.

can you help?

thanksnoah

[ExpressFuelPumps.com]

I recently got a walbro for an s14 but didn't recive the correct sock.

can you help?

thanksnoah

Sure no problem. Just send $15 to [email protected] via PayPal and it will ship the same or next day.

Steve

[NOAH041283]

$15 ??? SHOULDN'T THIS HAVE BEEN PART OF MY KIT I ORDERED FROM YOU GUYS ?

[Driftless240]

Noah, soumnds like a personal issue I think you should address to them on your own time. This was a great write up and I do not see why it should be ruined by a back and forth arguement.

Great write up, very informative +1 for sticky.

[ExpressFuelPumps.com]

$15 ??? SHOULDN'T THIS HAVE BEEN PART OF MY KIT I ORDERED FROM YOU GUYS ?

You did not mention you bought it from us. If that is the case we will refund the $15 and send it out free of charge

[NOAH041283]

WHO ASKED YOU !!!!!!!!

[NOAH041283]

sorry my fault I guess i wasn't clear.

thanks noah

[ExpressFuelPumps.com]

No problem. Shipped and refunded.

sorry my fault I guess i wasn't clear.

thanks noah

[DJButton]

Great write-up Steve, very informative, should certainly help out a lot of people! Those who search anyhow, lol

[Killahsmurf]

really dumb question... but if i were to buy a pump thats capable of higher pressures than compared to the stock one without changing my injectors, this wouldnt cause a problem further down the road correct? the reason i ask, is because this walbro with higher pressure capabilities is cheaper than the one with oe specs! pardon my ignorance, but i dont understand that one, especially when they come with the same stuff.

[redtop91]

^ The pump will only pump what your engine is consuming

[Killahsmurf]

ok, ive changed everything i need to change in my car for right now anwway. radiator, sparky plugums, thermostat, and even had to get a new fuel pump o-ring... still i have this no fuel issue. narrowed it down to the pump so i have to get one.

therefore, dumb question #2: a new fuel pump rated at 255lph rather than the stock (whatever it is, im sure its significantly lower) wouldnt this give the fuel pressure regulator a hard time. to the point where it would possibly blow it?

[Ligouri Rd]

I think your gonna need to take the pump back out, break those connections and put some PVC heat shrink tubing on the wires before reconnecting them. I just pulled my pump out last night to put on the '97 qualude sock and saw my heat shrink tubing all ballooned up when exposed to gas and sliding off the wires. Luckily I used PVC on the other wire and it stayed in place. The PVC heat shrink is the harder plasticy tubing not the soft rubbery stuff shown in the picture.

[ddgsxr504]

Wondering when someone would finally do this.

[nwmrkt]

nice stuff man!Would the install be essentially the same for a s13? But all I need is the walbro s13 kit?