I've seen a lot of discussion of Walbro pump installs on the forum, however, I haven't seen a comprehensive write-up. I just got done installing my pump successfully so I figured I'd go ahead and do a write-up on it to de-mystify it for people.

This write-up covers the installation of a Walbro fuel pump in 95-99 B14's. This install is pretty straightforward, however, there are some opportunities to make big mistakes so be careful and take your time. Please take the proper safety precautions before doing this installation because there will be fuel spillage in your work area. Also, be sure to do this in a well lit and well ventilated area. I would advise against doing this install if you have more than 3/4 of a tank of fuel, somewhere in the range of 1/4 of a tank would be ideal.

What You Will Need:
-Phillips head screwdrivers
-Flat head screwdrivers
-Pliers
-10mm and 8mm sockets w/ 1/4 or 3/8 drive ratchet
-Solvent impermeable gloves (highly recommended)


Before doing anything you will need to relieve the pressure in the fuel system. To do this, access the fuse panel under the dash. Start the car and with it running, pull the fuel pump fuse. When the engine stops, the fuel system is de-pressurized. On 98's and 99's, the fuel pump fuse is the blue, 15 amp fuse located in the second row from the left. It is the fourth fuse from the top. You will want to double check with your fuse diagram though.

It is now safe to proceed with the removal of the stock pump. First and foremost, disconnect the negative terminal on your battery. Next, you will need to remove the back seat to access the pump. This will reveal the sending unit access panel. Remove the three 10mm bolts from the access panel.

http://www.roastedpavement.com/fuelpump/3.JPG

What you see is the top of the fuel sending unit. Next you need to remove the electrical connectors and move the grey access panel out of the way. Disconnect the send and return lines, be careful when doing this as residual fuel will probably spill out of them. Next, remove the six 8mm bolts from the sending unit.

http://www.roastedpavement.com/fuelpump/4.JPG

Lift the sending unit up slowly, depending on how much fuel you have in your tank, there will be some drainage going on. There will be an electrical connector and two hoses connected to the bottom of it. Take note of the send and return lines and remove these items along with the connector. Carefully pull the sending unit out.

http://www.roastedpavement.com/fuelpump/5.JPG

http://www.roastedpavement.com/fuelpump/6.JPG

Now you can see the fuel pump which is installed in a plastic housing.

http://www.roastedpavement.com/fuelpump/7.JPG

I would strongly advise solvent impermeable gloves at this point because in some cases, you will need to completely submerge your hand in gasoline.

http://www.roastedpavement.com/fuelpump/8.JPG

The pump housing slides out of two tracks. To get the housing out, press up on the tab located at the bottom of the housing and slide the housing toward the front of the car. When it is free, slowly and carefully remove it from the car. You will want to let it drain for a while before fully removing it as it will be full of gasoline. When it is out, it will look like this.

http://www.roastedpavement.com/fuelpump/9.JPG

The housing consists of two sections, an upper and a lower. There are five tabs that hold these two sections together. They look like this.

http://www.roastedpavement.com/fuelpump/10.JPG

Carefully unhook these tabs and seperate the two housings. This reveals the actual pump itself.

http://www.roastedpavement.com/fuelpump/11.JPG

Remove the pump from the lower housing and take not of the hose orientation.

http://www.roastedpavement.com/fuelpump/12.JPG

At this point, you will want to ensure that you have all of the necessary hardware for the Walbro pump pictured below. Be careful because some of the parts are extremely small.

http://www.roastedpavement.com/fuelpump/12b.JPG

Follow the instructions provided with your Walbro pump exactly and ensure that you use all the provided hardware when installing the filter, hose, and connector onto the Walbro pump. Luckily, the connector pulls right out of the stock pump and plugs right in to the Walbro. You will discard the stock clamps for the send hose and use the screw-tight kind that Walbro provides. Orient the hose the same way on the Walbro pump as it was on the stock pump.

http://www.roastedpavement.com/fuelpump/14.JPG

Set the Walbro pump into the lower pump housing. It fits perfectly on B14's.

http://www.roastedpavement.com/fuelpump/15.JPG

Next, snap the upper part of the pump housing back on. You should have no problems doing this. If it does not snap back on with ease, the pump may not be positioned right.

http://www.roastedpavement.com/fuelpump/16.JPG

Installation is the reverse of removal. Take care when you are sliding the housing back into its tracks and be sure it is secure. When you are done tightening the top back on the sending unit and the hoses are reconnected(as in picture 2), re-connect the negative terminal on the battery and turn the key on before you bolt the grey access panel back down. This way the pump can prime and pressurize and you can check the send and return lines for leaks before buttoning up.

Finish up and you're done!

this might sound dumb but im goin to ask it anyway. where is the best place to install an external walbro? right now its installed in my engine bay. im thinking thats a bad spot because of the heat in there.

SPAM^^

excellent write up, and MUST be put into a sticky. Sooner or later i will be doing this install so thanks a lot for this.

SPAM^^

spam sounds good right now. do u mind cooking me up some dude? haha!

lol i just wondered why i posted there must have been a spam post that got deleted good writeup btw

im missing one of the ring retainers where can i buy one?

excellent wrtie up, i just did my fuel pummp the other day, busted missions trying to get the plastic case out till i saw the tabs on the bottom of the tank, plus the tank rim on the opening was sharpe so u get plenty of cuts...8)

just did this in my b13 and it sucks BALLS! i would advise gloves, also. I swear you'll think your finger is going to fall off if you get gasoline in a cut like I did. and also the tank is super sharp so you need gloves that will protect against that, too. and don't get gas on that little o-ring that seals the gas tank from the car because it will swell up and you'll have fun trying to get everything back together. i'd have to say that if I was gonna do it again i'd drain the tank and that would make it so much easier.

hey guys,

I liked to know, the exact model of the Walbro Fuel Pump u guys did succesffully to your B14 replacing the original ones.

Can any give me the product code of the Walbro that plug n play into b14 ?

Thanks a mil :)

Well i just bought mine off of ebay heres the listing

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=180337330264&viewitem=&sspagename=STRK%3AMEWNX%3AIT


Pump = GSS-342

Kit = 400-954

Coming back from the grave.... I just want to tell you guys to BEWARE of most of ebay sellers selling this fuel pumps as most of them are excellent chinese copies of the original except that they do not work as the original.

I bough mine from ebay at 90 dlls and to realize does not gives more that 50 psi at boost levels beyond 3 psi just pissed me off.

China have become expert in selling this GSS342 fuel pump SO BEWARE and do not buy it anymore...

The new Walbro pn is GCA3362HP (without HP if you want stock performance)

Just wanted to give you a heads up.

Luis.

that's why folks should purchase from local or USA shops.