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General Category => Modifications => Topic started by: dma251 on May 18, 2014, 02:12:29 PM

Title: Converting 1990 FJ1200 to gravity flow fuel and deleting the pump
Post by: dma251 on May 18, 2014, 02:12:29 PM
I am building a heavily stripped down custom from an old decrepit 1990 fj, and would really like to further simplify by converting it over to a gravity flow fuel system.  I want to delete all the related wiring that goes with the fuel pump/fuel reserve switch, etc.  

I know there might be some drawbacks, but I've thought this through, and if it's possible, I want to do it.  

Besides the needle/seat and petcock changes, what else am I facing with this?

I have searched a lot on here, and I know this info is already buried in the forum, but I am not finding anything consolidated.  If you know of the thread that talks in detail about this, I would love a link to it.  It's not that I haven't tried.

Thanks
Title: Re: Converting 1990 FJ1200 to gravity flow fuel and deleting the pump
Post by: JPaganel on May 18, 2014, 02:32:23 PM
Quote from: dma251 on May 18, 2014, 02:12:29 PM
Besides the needle/seat and petcock changes, what else am I facing with this?

Different size of fuel line. Also, possibly the correct brackets on the carbs to route the line so that it does not get pinched.
Title: Re: Converting 1990 FJ1200 to gravity flow fuel and deleting the pump
Post by: movenon on May 18, 2014, 02:35:57 PM
Other things larger hose diameter and the gravity feed carbs have 2 fuel inlets I believe. And you have to delete your fuel filter.
George
Title: Re: Converting 1990 FJ1200 to gravity flow fuel and deleting the pump
Post by: FJ111200 on May 18, 2014, 03:52:00 PM
The XJR doesn't use a fuel pump.

I ran my FJ1100 tank with 1200 3CV carbs and no pump or problems.

Go for it, forget the bull.