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Old 04-17-2008, 08:23 AM   #1 (permalink)
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Default Walbro fuel pump install

Does anyone have a guide? I'm about to install my fuel pump but I'm not sure what to do and I can't find anything on here.
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Old 04-17-2008, 08:29 AM   #2 (permalink)
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Scoobymods loves you...

It's for an Impreza, but it's basically the same. Our pump is under the rear cover in the "trunk." It has an oval shaped cover. Oh yeah, you will spill gas, so make sure you're working in a very well ventilated area and there is no heat sources or flame near you. I would also make sure you are wearing gloves, and work away from your car to avoid any static charge.
Might as well do your own write up.
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Old 04-17-2008, 08:51 AM   #3 (permalink)
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^^ Thanks for the link! I have the Walbro fuel pump in my "to be installed" MOD box. I read somewhere to make sure the fuel tank isn't completely full when you change out the pump.

Bobby...
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Old 04-17-2008, 08:56 AM   #4 (permalink)
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I have the cover off, I undid the 8 bolts but I can't get the hoses off. any tips? Two of the hoses have really odd clips.

I saw the WRX install, but it is using the older fuel pump that was not an exact fit. It shows cutting hoses and that.
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Old 04-17-2008, 09:02 AM   #5 (permalink)
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I did this just the other week. If you have the 342 walbro it will fit without any modifications.

For the stuck hoses, just keep working at them, they will give. I was using a small flat head very carefully to pry them off.

When installing the new one lessen all the clips holding the rubber hoses (2 rubber hoses with 4 clips total) to allow the whole thing to squeeze together since the new pump is just a little longer.
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Old 04-17-2008, 09:05 AM   #6 (permalink)
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I have two hoses with the weird clips and those came off no problem. A littl gas leaked, but I was ready for that. THe power cable came off no problem, but I have one hose that had a hose clamp on it that will not budge. Any tips on getting that one off?
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Old 04-17-2008, 09:06 AM   #7 (permalink)
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I helps to have less gas in the tank. I would have about 1/4 tank.
Yeah, the clips suck, just keep at it.
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Old 04-17-2008, 09:07 AM   #8 (permalink)
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Quote:
Originally Posted by sea-scooby View Post
I have two hoses with the weird clips and those came off no problem. A littl gas leaked, but I was ready for that. THe power cable came off no problem, but I have one hose that had a hose clamp on it that will not budge. Any tips on getting that one off?
I'm not help but please post up some pics of your install. I have had this pump for nearly 5 years and want to put it in.
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Old 04-17-2008, 09:09 AM   #9 (permalink)
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I'll see if I can dig up the camera...

I need this done today, since my turbo swap is tomorroww and I don't want to pay them to do it because I failed
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Old 04-17-2008, 09:56 AM   #10 (permalink)
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I'm finished! I'm pretty retarted when it comes to mechanical stuff like this, but it wasn't too tough. It took me about 60 minutes of actual work, adn another 30 minutes of reading to get it done.

I'll post some pix for you Todd later today.
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Old 04-17-2008, 10:17 AM   #11 (permalink)
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Awesome thanks. What turbo are you going with? Just for others to know, VF34/39/16g sized turbos don't require a fuel pump upgrade. It's still a good idea though, and that's why I want to do it.
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Old 04-17-2008, 10:33 AM   #12 (permalink)
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I reccomend having a rag handy to soak up the spilled gas. As it was said above, you will have gas leak out of one of the hoses. Oh, and when istalling the new pump, just be gentle with the fuel level lever. It bends pretty easily.
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Old 04-17-2008, 10:39 AM   #13 (permalink)
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Quote:
Originally Posted by wakeabyss View Post
I reccomend having a rag handy to soak up the spilled gas. As it was said above, you will have gas leak out of one of the hoses. Oh, and when istalling the new pump, just be gentle with the fuel level lever. It bends pretty easily.
Thanks for the tip. Where is the pump located and all I have is the pump. Nothing else. WIll it swap right in? I see others being sold as a kit. Do I ned the harness?
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Old 04-17-2008, 10:51 AM   #14 (permalink)
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No harness is needed if you have the correct pump.

My Forester looked different than the WRX. I had two quick release hoses (orange clips) 1 electric plug, and one hose clamped hose.

The top orange one is the one that will leak the fuel. I had an old shirt ready so I caught most of it.

Note: The bottom two bolts held on a seperate bracket that holds some hoses you will have to push that back to remove the plate that has the fuel pump.



Here is the inside of the fuel tank. My gas light is on and you can see quite a bit of fuel still. You can also see that other bracket I was talking about. It in in the bottom of the opening and has two bolt holes.




Here is the stock fuel assembly. You unplug the wire harness, loosen the hose clamp and it comes right off. The filter thing at the bottom is held on by a little round clip. Becareful when removing it because it is real small.



Here are the pumps side by side:


The new pump is longer, but if you loosen the hose clamp to the right of the one that held the fuel pump on, you can push the hose on a 1/8"-1/4" further. This will give the clearance needed to slide the slighter longer Walbro pump in place.

The wire harness a direct fit, so it is a very easy install.
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Old 04-17-2008, 10:53 AM   #15 (permalink)
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Don't need the kit or the harness. Just get the 342 walbro.
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