ravencr

Does anyone have detailed instructions on how to remove and replace the stock fuel pump with the Walbro 190 LPH fuel pump for a 1998 4Runner? I'm hoping to do this mod this weekend, and anyone's help would be greatly appreciated!

Chris

dukestr

The Haynes Manual has instructions on how to replace the in-tank fuel pump....Gadget has it on his site too.

ravencr

Will the toyota manuals have it? I just got two of them from Jay Marks Toyota!!

Chris

ravencr

Has nobody taken pictures of this procedure when they did it?

Chris

FattyCBR

I have pictures on my friends camera, which are not downloaded yet. If you're worried about it just look at Gadget's site. Everything is self-explanatory.

Here's what you do:
1) Make sure you don't have a lot of gas in your tank.

2) pull up the back seat on the drivers side. Beneath the carpet there's a black panel with wires going beneath it. Remove the panel. Turn on the truck and then unplug the wires going into the tank till the truck dies.

3) crawl under the truck and disconnect the two return lines and the one hard line going into the tank. They're right in front of the tank. Have something to catch any dripping gas.

4) Undo all the bolts holding the tank up and use something to hold the tank up but let it drop down a few inches.

5) Undo the fuel filler neck clamp from the back of the tank. Undo the overflow tube from the top, this is easiest if you let the front of the tank down so you get access. At the same time remove the clip holding the wires to the top of the tank so it can come all the way down (this parts a b!tch).

6) Pull out the tank from underneath the truck and replace the pump. Gadget has good directions for this part.

7) Once installed, get readdy for your Walbro to whine, it's annoying as crap and I'm still trying to figure out how to silence it.

ravencr

Thanks Milan! You've been a huge help!

Chris

ravencr

Milan,

Thanks for coming over the other night. I really enjoyed my first ride in a supercharged 4Runner. At any rate, I'm going to attempt the fuel pupm installation tomorrow bright and early. Thanks again,

Chris

ravencr

Well, I got the tank out, and I noticed that right now may be the best time to go ahead and replace the fuel filter. Anyone know if there are performance fuel filters that are better than the stock unit, or should I just get the factory one?

Chris

FattyCBR

I just used the factory fuel filter when I replaced mine. It should be $31 from TOK, it was $38 from the Airport Toyota, but they should match TOK. Good luck with the pump.

ravencr

Thanks Milan,

Thing went real smooth today except for the threaded fuel line in the front of the tank. It look a little work, but finally came apart okay. Other than that, me and my dad ran out of time to finish it. Oh, by the way, what did you use to cut the tubing that attaches by the rubber hose to the fuel pump. It's kind a tight space. Just wondering!

Thanks,

Chris

P.S. I also went ahead and wrapped the Thermo-tec tape and air intake wrap around the intake, and it worked really well. I probably didn't really need it as you mentioned, but just to keep it as cool as possible, I went ahead and did it. Plus it covers everything up that everyone hated!!

FattyCBR

I used a spin type pipe cutter. It's the same kind that is used to cut copper pipe. I flared it also, unfortunately I don't have pics yet.

ravencr

I wish I had one, but my dad said he may have one. We are going to try something tomorrow morning to wrap it up. How'd you flair it up?

Chris

FattyCBR

To flare it I used a pipe flare tool. If you do flare it you have to remove/move the low fuel indicator. To do that you undo the screw holding it on, then rotate it 90˚ and pull it down.

ravencr

I'm lost on that one! I was thinking about just cutting the tube only about 1/4" to keep it from rubbing up agains the fuel pump. Do you think I need to do anything else?

Chris

FattyCBR

From what I've seen all you really need to do is sut the metal tube. I also added a worm gear clamp so there was no chance of the pump falling off.

ravencr

Yeah, that's what I was planning on doing, because they provided the clamps to make sure it doesn't come apart. I'm also going to zip tie the pump to make sure it doesn't shift for any reason, which I think is actually in the directions. I can't wait to get it in. Oh, by the way, and reason you chose the 255 LPH over the 190? Will I exceed it's capacity in your opinion, although I've been told that it can handle upwards of 600 HP.

Chris

ravencr

Well,

I got the fuel tank and new 190 LPH fuel pupm installed this morning. It went together perfectly. The only thing I'd recommend to anyone that hasn't done this yet is to add a little lubricant on the top rubber hose and metal tube on the top of the tank. It makes the job much easier, because that tube is hard to get to. But, with a little lubricant it slips right on.

Milan, thanks a ton for the written directions. I couldn't have done it without them. The procedure went very smoothly with the help of them. Thanks!

Chris