My fuel pump mounting solution

Started by bikewiz, March 29, 2025, 05:56:40 PM

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bikewiz

So after having my third mechanical pump die last year I decided to install an electric Facet cube pump. This is my install.
I made a threaded plate for the interior where the seat bottom is. I made a stainless "cage" for the pump so the rubber vibration dampers would be vertical and easier to access. I wired it in with a single pole Molex connector so future replacement should be easier. On the power side I used an inertia switch in case of an accident so it won't keep pumping without the engine running, I also wired in a LED on the dash to light when it's tripped. Lastly I had a stainless louvered protector made to cover the pump and protect it from road grime and any potential road debris. I got the idea for the mounting position from an article I read about rally minis, the hose run is really straight from the tank through the pump to the hardline to the engine. To switch it out I have 5 screws holding the ss protector, 2 for the vibration dampers, 2 hose clamps, and the single Molex. I made up another pump to carry as a spare, I think the time to change it out should be 15 minutes if I ever need to do it road side.

94touring

Nice install. Main thing is keeping them cool so they don't burn up. I've accidentally burnt up a few with the ignition on and the engine off (fuel isn't flowing to cool it). So if you're working on something with the ignition on, unplug the pump fuse.  I've always gone electric on minis for easy replacement over the mechanical.  On my VWs I went back mechanical because it easier to replace than the electric! 

bikewiz

Quote from: 94touring on March 29, 2025, 06:27:59 PMNice install. Main thing is keeping them cool so they don't burn up. I've accidentally burnt up a few with the ignition on and the engine off (fuel isn't flowing to cool it). So if you're working on something with the ignition on, unplug the pump fuse.  I've always gone electric on minis for easy replacement over the mechanical.  On my VWs I went back mechanical because it easier to replace than the electric! 
Good tip. I wouldn't have thought of that. I have easy access to the fuse under the hood.

MiniDave

What's the figure of eight bracket for?
Complete failure at retirement - but getting better!

1972 Mini Racing Green
1972 Mini ST hotrod
2017 Audi Allroad - Glacier White - His
2018 Audi Allroad - Floret Silver - Hers

bikewiz

Quote from: MiniDave on March 29, 2025, 07:32:00 PMWhat's the figure of eight bracket for?
It's the Worlds most over engineered exhaust hanger. I made it probably 10 years ago when I installed my RC40 exhaust, I just couldn't use the bent metal with u clamp on the nice stainless pipe.

MiniDave

#5
I love it!  :13:

How did you form the louvers?
Complete failure at retirement - but getting better!

1972 Mini Racing Green
1972 Mini ST hotrod
2017 Audi Allroad - Glacier White - His
2018 Audi Allroad - Floret Silver - Hers

bikewiz

Quote from: MiniDave on March 30, 2025, 07:49:49 AMI love it!  :13:

How did you form the louvers?
I had the cover made by a sheet metal fabrication shop that does hot rod stuff too so they have the louver punch. I did a CAD template (cardboard aided design) and they copied it perfectly. Funny thing is they made a mirror image version that I could use on the other side of the subframe, for what I don't know.

Red Riley

Quote from: bikewiz on March 30, 2025, 08:16:43 AM
Quote from: MiniDave on March 30, 2025, 07:49:49 AMI love it!  :13:

How did you form the louvers?
I had the cover made by a sheet metal fabrication shop that does hot rod stuff too so they have the louver punch. I did a CAD template (cardboard aided design) and they copied it perfectly. Funny thing is they made a mirror image version that I could use on the other side of the subframe, for what I don't know.

They probably bent it the wrong way the first time.

bikewiz

Quote from: Red Riley on March 31, 2025, 05:33:21 AM
Quote from: bikewiz on March 30, 2025, 08:16:43 AM
Quote from: MiniDave on March 30, 2025, 07:49:49 AMI love it!  :13:

How did you form the louvers?
I had the cover made by a sheet metal fabrication shop that does hot rod stuff too so they have the louver punch. I did a CAD template (cardboard aided design) and they copied it perfectly. Funny thing is they made a mirror image version that I could use on the other side of the subframe, for what I don't know.

They probably bent it the wrong way the first time.
I don't think I wrote on the cardboard which way I wanted the bends so they probably did both to be safe, I think it was only like $40 for them.