How to: Install a Walbro fuel pump (B14)
coalitionSE-L from roastedpavement.com has a great write up you can find here.
Using that as a starting point, I have a few helpful tips I can add.
When you are working on any part of your fuel system, it’s not a bad idea to have a fire extinguisher handy.
Disconnect your negative battery terminal. You don’t want anything electrical to have power when you are working with the fuel.
Ventilation is very important. I opened everything and used a heavy duty shop fan blowing through the rear doors. That helped quite a bit.
When I got to the sending unit, it was filthy. I was afraid some debris might make it’s way into the fuel tank. Before removing it, I used a shop-vac and some rags to clean it up.
If you have a pre-disposition to f*cking up simple things (like I do), label the send and return lines when you remove them.
Having my camera with me and taking pictures along the way was also helpful. You can always refer back to the pictures of what things looked like before they were disassembled.
I also found it helpful to have a drain pan in the car as a parts tray. You don’t want to drip fuel all over your interior getting this stuff out of the car.
coalitionSE-L decided not to cover the portion of the install following Walbro’s instructions. I took some pictures, so here it is.
Open up the plastic case surrounding the stock fuel pump (no tricks here, it uses plastic clips that you will clearly see). Set the case aside. Lay out all of your parts, old and new. Take inventory to make sure you have all the new parts you need.
Remove the wiring harness and send line attached to the stock pump. Be sure to note the orientation of the send line.
Place the metal swell ring on the filter adapter.
Place the filter adapter on the base of the Walbro pump, using the locating stud to be sure you have it on correctly.
Secure the adapter using one of the two retaining rings provided in the kit. I used a 4mm socket to push it in place.
Secure the filter onto the filter adapter. Again, there is a locating stud to be sure you have it on correctly.
Use the other retaining ring (using the same 4mm socket procedure from above) to secure the filter to the filter adapter.
Install the original wiring harness and send line on the Walbro pump. Be sure to use the hose clamps provided in the kit instead of the old hardware. Position the new pump in the stock housing.
Replace the housing cover.
Now you’re ready to put the new pump in the fuel tank.
Using that as a starting point, I have a few helpful tips I can add.
When you are working on any part of your fuel system, it’s not a bad idea to have a fire extinguisher handy.
Disconnect your negative battery terminal. You don’t want anything electrical to have power when you are working with the fuel.
Ventilation is very important. I opened everything and used a heavy duty shop fan blowing through the rear doors. That helped quite a bit.
When I got to the sending unit, it was filthy. I was afraid some debris might make it’s way into the fuel tank. Before removing it, I used a shop-vac and some rags to clean it up.
If you have a pre-disposition to f*cking up simple things (like I do), label the send and return lines when you remove them.
Having my camera with me and taking pictures along the way was also helpful. You can always refer back to the pictures of what things looked like before they were disassembled.
I also found it helpful to have a drain pan in the car as a parts tray. You don’t want to drip fuel all over your interior getting this stuff out of the car.
coalitionSE-L decided not to cover the portion of the install following Walbro’s instructions. I took some pictures, so here it is.
Open up the plastic case surrounding the stock fuel pump (no tricks here, it uses plastic clips that you will clearly see). Set the case aside. Lay out all of your parts, old and new. Take inventory to make sure you have all the new parts you need.
Remove the wiring harness and send line attached to the stock pump. Be sure to note the orientation of the send line.
Place the metal swell ring on the filter adapter.
Place the filter adapter on the base of the Walbro pump, using the locating stud to be sure you have it on correctly.
Secure the adapter using one of the two retaining rings provided in the kit. I used a 4mm socket to push it in place.
Secure the filter onto the filter adapter. Again, there is a locating stud to be sure you have it on correctly.
Use the other retaining ring (using the same 4mm socket procedure from above) to secure the filter to the filter adapter.
Install the original wiring harness and send line on the Walbro pump. Be sure to use the hose clamps provided in the kit instead of the old hardware. Position the new pump in the stock housing.
Replace the housing cover.
Now you’re ready to put the new pump in the fuel tank.
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Originally Posted by Vadim 
I actually ran into trouble with mine too, but I forgot to put it in the thread (I wrote that a few weeks after I did the fuel pump). I cut mine and wrapped the break with a few layers of electrical tape.
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