I still miss mine. the other day I did nationwide search for a 4wd v8 and only 6 came up. 6 years ago when I got mine there was atleast 20-25 of them. I'm back in a v8 now but its way bigger than the 4th gen.
Inv4drZm's Build Thread
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I still miss mine. the other day I did nationwide search for a 4wd v8 and only 6 came up. 6 years ago when I got mine there was atleast 20-25 of them. I'm back in a v8 now but its way bigger than the 4th gen.
Inv4drZm
Senior Member
Hey nerds am I doing it right? Full fuel line replacement on my Tundra using AN fittings and ptfe lined tubing plus two of these adapter should work for the tank side: Fuel Pump Adapter for Toyota Hangers
Been running with a redneck fuel line fix since shortening the truck and long story short its been leaking after I lowered the truck and moved the fuel tank. Tundra will be a guinea pig for my 4Runner if I ever build a rear tank for it.
Should get Tundra wheel adapters soon to actually mount the 2022 wheels.
Been running with a redneck fuel line fix since shortening the truck and long story short its been leaking after I lowered the truck and moved the fuel tank. Tundra will be a guinea pig for my 4Runner if I ever build a rear tank for it.
Should get Tundra wheel adapters soon to actually mount the 2022 wheels.
I'm no fuel line expert... but as long as you get the line properly seated on the fittings without it fraying all over the place you should be good to go. I just finished running a similar setup on the supra to run twin pumps and E85, fortunately, knock on wood, no leaks so far lol.
Inv4drZm
Senior Member
I'm just curious how the 4.7 KOH guys connected their lines to the stock fuel rail. [MENTION=162495]Charles4x4[/MENTION]? Am I on the right track? Tundra might be different than 4Runner I havent looked.
Tank side should be dummy proof as long as I have the headroom for the 90 fittings.
Charles4x4
New member
Check out my old post from p.14 of the build thread:
https://www.toyota-4runner.org/3090418-post208.html
Inv4drZm
Senior Member
I used a Russel banjo fitting on the left side, RUS-640923, 'for Civics/Integra w/ fuel damper'. I don't see why it wouldn't work compared to the oem banjo connection. We'll see if it leaks.
RUS-644113 for the right connection, 5/16" quick connect style.
Vibrant hose ends and ptfe lined hose.
Radium fuel pump adapters.
Will cut the hose with a grinder w/ cutoff wheel and have vise jaw adapters and -6AN wrench to tighten all fittings.
RUS-644113 for the right connection, 5/16" quick connect style.
Vibrant hose ends and ptfe lined hose.
Radium fuel pump adapters.
Will cut the hose with a grinder w/ cutoff wheel and have vise jaw adapters and -6AN wrench to tighten all fittings.
Inv4drZm
Senior Member
Had some time Sunday to rip out the old fuel lines and install my new ones. Ordered 20ft of hose and needed just under 10ft for each pressure and return line, so barely had enough.
Unfortunately, the Radium adapters on top of the tank started leaking on startup, engine side was dry though. I noticed the adapters slid on very easily meaning the Oring may have been a hair too large to seal. I ordered smaller Orings.
Excited to get this working so I can use this system on my future custom 4Runner tank.
Stuck my phone up into a small area on the driver's side bed to take this picture with the tank mounted:
With the tank dropped 6" I accessed it from the passenger side:
Unfortunately, the Radium adapters on top of the tank started leaking on startup, engine side was dry though. I noticed the adapters slid on very easily meaning the Oring may have been a hair too large to seal. I ordered smaller Orings.
Excited to get this working so I can use this system on my future custom 4Runner tank.
Stuck my phone up into a small area on the driver's side bed to take this picture with the tank mounted:
With the tank dropped 6" I accessed it from the passenger side:
Inv4drZm
Senior Member
Picked up a used set of 29" tires for $150. Might try to mount them myself to save some money. Hard to get rid of the brand new 32" rubber though, might drive a little bit before swapping to the lower profile tires. The Tacoma set I had on here previously were only 30s so not a huge difference but hopefully it helps it sit a little lower.
Inv4drZm
Senior Member
Shop at work said they have time to laser and bend metal for me finally. Rear fuel tank for 4Runner finally happening? I just need to finalize the design. I'm thinking 1/8" aluminum tank sitting on top a steel skid plate. Leaning towards 3" below the frame rails which should give 34 gal capacity. Page 87 has more notes and pics.
I'm in the process of ripping out the TK1 racing bar I welded through the rear frame rails with future plans of installing and expanded fuel tank there sometime in the future myself.. I now want expanded fuel tank capacity vs the original thought of relocating it to the rear in favor of 4-link setup for the rear axle
Inv4drZm
Senior Member
So you're wanting an auxiliary tank in the rear now instead of the primary tank? Check this thread out, should be a simple setup just need to splice into the filler hose and hook up a pump and gauge.
Auxiliary Gas Tank Install: Completed | Page 7 | Second Generation Nissan Xterra Forums
yea exactly.. the original idea to rear-mount a tank was to be able to run a triangulated 4-link... but I have since decided to keep my build more realistic for what it started with... camping trips to places some of the more factory rigs couldn't make it out to.. I may still do some offroad trails here and there, but at the moment looking to make it more capable for the camping needs..
This kit is pricey.. but is 24 gallons and does exactly that, splits the the filler and adds a transfer pump with a fuel level (Lexus GX470 & 4th Gen 4Runner Long Range Auxiliary Fuel Tank (24gal))
Inv4drZm
Senior Member
Should hold 28 gallons and hang below the frame rails 3". Two opposing float style vents going to the charcoal canister, ordered ones for a jeep YJ which is what Genright uses. Fill tube is the large one on the side, will have a 1.5" Tanks Inc. flapper/roll over valve in the fill neck. The port right above the filler is another YJ float vent which will connect to the stock filler neck vent. I believe this helps vent when filling with fuel, and when the valve closes off (when tank is full) it helps stop the pump nozzle. I'll chop up the stock metal fill neck as required and use hose the rest of the way. Then relocate all the evap stuff to where the stock tank is.
Inv4drZm
Senior Member
Got the YJ vents in. Tested with a glass of water and a straw, they block off when the water level reaches the top, and also block when inverted like in a rollover. Nice $12 find. Similar parts on Summit are much more expensive. Will finish designing the tank this weekend and send to the shop to fabricate next week. In the meantime I will brush up on my aluminum welding skills.
Inv4drZm
Senior Member
Shop at work flaked out on me to build my fuel tank.
Currently getting it quoted across town, it'll be pricier than at my work.
(If this works out can finally have 'MZLT' built possibly)
Been chasing issues with my Tundra and haven't driven it in months, one rear drum brake is heating up ever since installing new studs and wheel spacers, and rear brakes are clicking. Ordered centric drums, shoes, pads, and rotors and will deep dive into the issue at some point. Feels like drums aren't centered on the shoes and self-adjusters are clicking to compensate when braking. In the meantime been daily driving the 4Runner again, she does great.
Currently getting it quoted across town, it'll be pricier than at my work.
(If this works out can finally have 'MZLT' built possibly)
Been chasing issues with my Tundra and haven't driven it in months, one rear drum brake is heating up ever since installing new studs and wheel spacers, and rear brakes are clicking. Ordered centric drums, shoes, pads, and rotors and will deep dive into the issue at some point. Feels like drums aren't centered on the shoes and self-adjusters are clicking to compensate when braking. In the meantime been daily driving the 4Runner again, she does great.
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Inv4drZm
Senior Member
Sent the purchase order to have my fuel tank lasered and bent.
Total was $641 for aluminum tank and steel skid plate. I'll do the welding myself.
Might just weld the skid plate to the bottom of my bumper, under the frame rails. Makes mounting it simple but means I have to drop the tank if I ever remove my rear bumper.
Total was $641 for aluminum tank and steel skid plate. I'll do the welding myself.
Might just weld the skid plate to the bottom of my bumper, under the frame rails. Makes mounting it simple but means I have to drop the tank if I ever remove my rear bumper.
