100 series factory Aux tank

[AndrewP]

So my base assumption was wrong, I really don't have much knowledge about injected systems. Thanks for the correction.



Sorry the seller only had two, an 80 and a 100. Both are gone now.

Even the $50 low pressure transfer pump that I use flows 35 gallons per hour. So it can easily pump the contents of the sub tank in 30 minutes or so. As a side benefit, that same pump can run a 2F in an emergency.

I thought the 100 series (especially an early one) had the flapper valve filler. They are very nicely made and I would recommend you go that route. I seem to remember that Romer on IH8MUD had one sent by Sea Mail from Australia and it was fairly cheap. Brett T had one of the "V" fillers and it was sort of crappy.-you had to point the gas nozzle one way or the other and fiddle with it every time you filled up. PIA.

 

[spressomon]

FWIW Dan here's the OEM parts diagrams.

 

[jgolden]

Great thread!!!!!
I'm working on the same project for my 2005 LC.

If you give me your email address, I can send you the OEM subtank schematics for the 100 series. I got them from Japan4x4, they can source the parts for you.

jg

 

[jgolden]

FWIW Dan here's the OEM parts diagrams.

nevermind :ylsmoke:

 

[rusty_tlc]

FWIW Dan here's the OEM parts diagrams.

Thanks that should come in handy.

 

[TangoBlue]

No intent to hijack.

Using the Landcruiser long range fuel tank application I'm contemplating the practicality of building a similar setup for my 2001 Tacoma, based on the dual filler for the 80 or 100 series. I assert the dual filler is the key to prevent body modifications and that there will be sufficient space behind the quarter panel where the current fuel filler is, and under bed to run and tie into existing lines, transfer pump, and in the place of the spare tire a fuel cell (likely sourced used from another vehicle) with fuel gauge and transfer pump switch in cab.

Any thoughts please share but my ultimate question is...

...where can I source a dual filler neck assemby, sometimes referred to as a "flapper" variant. I tried .au eBay, wreckers, etc. No joy.

Appreciate any rudder y'all might kick in. Thanks!

 

[spressomon]

No intent to hijack.

Using the Landcruiser long range fuel tank application I'm contemplating the practicality of building a similar setup for my 2001 Tacoma, based on the dual filler for the 80 or 100 series. I assert the dual filler is the key to prevent body modifications and that there will be sufficient space behind the quarter panel where the current fuel filler is, and under bed to run and tie into existing lines, transfer pump, and in the place of the spare tire a fuel cell (likely sourced used from another vehicle) with fuel gauge and transfer pump switch in cab.

Any thoughts please share but my ultimate question is...

...where can I source a dual filler neck assemby, sometimes referred to as a "flapper" variant. I tried .au eBay, wreckers, etc. No joy.

Appreciate any rudder y'all might kick in. Thanks!

Contact Dave Stedman at http://export.japan4x4.com/

Dave is a great guy and always willing to help if he can. FYI this is where I sourced all my OEM aux tank parts including the dual filler neck.

 

[rusty_tlc]

Even the $50 low pressure transfer pump that I use flows 35 gallons per hour. So it can easily pump the contents of the sub tank in 30 minutes or so. As a side benefit, that same pump can run a 2F in an emergency.

I thought the 100 series (especially an early one) had the flapper valve filler. They are very nicely made and I would recommend you go that route. I seem to remember that Romer on IH8MUD had one sent by Sea Mail from Australia and it was fairly cheap. Brett T had one of the "V" fillers and it was sort of crappy.-you had to point the gas nozzle one way or the other and fiddle with it every time you filled up. PIA.

Yeah I want to keep it simple since Joanne drives the 100 a lot. I don't want her to have to screw around with anything quirky.

 

[hoser]

I thought the 100 series (especially an early one) had the flapper valve filler. They are very nicely made and I would recommend you go that route.

I do not know for sure but I "think" it is the 105's that have the flapper valve.

Any thoughts please share but my ultimate question is...

...where can I source a dual filler neck assemby, sometimes referred to as a "flapper" variant. I tried .au eBay, wreckers, etc. No joy.

Appreciate any rudder y'all might kick in. Thanks!

For new, I'd go with who Spresso recommended. For used and locally, I would try www.man-a-fre.com/ since they have gotten them in the past. If you want it even cheaper and willing to work for it.

http://www.tradingpost.com.au

Search wrecked "Landcruiser" (one word) 100/105 series and see if you can get a wrecking yard to ship internationally. If not, maybe a member here can help you.

 

[roscoFJ73]

I do not know for sure but I "think" it is the 105's that have the flapper valve.

I happened to inspect a diesel 105 the other day belonging to a friend. It has a single fuel cap with a dual filler tube.
You just point the bowser nozzle at the tube you want to fill
Not sure what you mean by a "flapper valve"

 

[spressomon]

FWIW mine is "Type A" in the diagram and except for an errant California fuel vapor collector once in a while it works fine. Simple.

 

[alia176]

INMHO, your in tank fuel pump is fine and I think you're splitting hairs. If you use George's ECU (like all 80 owners are doing), your transfer logic is a done deal. It uses the Empty signal from the sub tank to stop the transfer pump (your in tank pump in this case).

If you follow the plumbing that the 80 owners are using (copy George's design) then there is no chance of overfilling the main tank. The fuel simply recircs until you turn off the transfer pump.

As far as a filler neck, why not go the route of what lots of domestics do and have a filler neck coming out of the driver side rear wheel well? Too redneck? It doesn't have to come out much as it'll still be buried inside the wheel well. Sure it'll get dirty from road grime but the design is very simple and effective. The dual filler neck resides in the same area just about anyway (behind a splash shield).

Just a thought.

 

[AndrewP]

As far as a filler neck, why not go the route of what lots of domestics do and have a filler neck coming out of the driver side rear wheel well? Too redneck? It doesn't have to come out much as it'll still be buried inside the wheel well. Sure it'll get dirty from road grime but the design is very simple and effective. The dual filler neck resides in the same area just about anyway (behind a splash shield).

Just a thought.

That is way too redneck for a nice car like a 100 series IMHO.

I think I missed the part about Rusty's tank already having an in tank pump. That is a major score, and I don't see why it wouldn't run with George's logic board, since 12v is 12v. Very cool and trick.

All the more reason to source the dual filler. I think the filler needed is the one where the lower outputs of the filler are not parallel, but at a slight angle to each other. Guys were adapting those to 80 series trucks but I believe they came form 100 series trucks in Oz.

Disclaimer: I do not own a 100 series Land Cruiser but have seen them at the mall. ie I could be wrong about the whole filler thing.

 

[ontheroof]

Here are a few pictures for you to go off of for the project. Hope this helps and let me know if you need any other photo's or specs?

 

[hoser]

This picture if from bajaoverland's site. But I don't know if the labeling is correct. Rosco, by flapper valve, I mean there is a valve inside that diverts fuel to one side or the other.