19 replies to this topic

[soulslinga]

Mk1 tanks with electric pumps should have a coarse fuel filter inside the tank on the outlet pipe. This should prevent any material being sucked into the fuel pump that could damage it

If you put a regular fuel filter pre pump, you will need to check on it regularly to make sure it doesn’t clog up. If it clogs up and the pump runs dry it can burn out the pump.

SU pumps are good at “pushing” the fuel from the back of the car to the front, but not as good as “sucking” the fuel along a distance or against a blocked filter.

Facet pumps normally come with a pre pump filter, but often a pre pump filter will be a bit coarser than a post pump filter

Just like a lot of things on a mini, there are different ways to do the same job, so do your research, ask some questions and figure out which way you want to go.

 

hey just wanted to follow up. i put my fuel filter on right before the carb. i may put another on one before the pump, have to take a look under the car for a spot first. 

here is a pic of how i have it rigged up, in case anyone thinks its wrong lol, or is referring to this in the future. i had to use a little 1/4" 4AN 180 adapter i got off amazon, without the 180 adapter the fuel line was forced into a dramatic S shape that probably would have popped a hole in it. thanks for the help everyone, let me know how this looks. !

also dumb question but i'm assuming the device i have this plugged into that LOOK like another fuel filter is actually the carb float tank correct? and not a filter that i have not been checking lol. 

finally - does that hose above my new fuel filter, that looks to be running from the radiator area, get hot???

 

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Edited by soulslinga, 26 February 2023 - 03:49 PM.

[cal844]

That looks a good setup, the float bowl can get sediment in the bottom of it, worth taking the cap off and checking for sediment. You can get inline plastic filters that have straight fittings

That large hose will get hot, yes.

[soulslinga]

That looks a good setup, the float bowl can get sediment in the bottom of it, worth taking the cap off and checking for sediment. You can get inline plastic filters that have straight fittings

That large hose will get hot, yes.

 

thank you , i emptied out the bowl with a turkey baster (not the best) and cleaned it a bit. also moved the setup a little further from this hot hose. 

[soulslinga]

I’ve taken your advice and replaced all the old fuel hoses (that I could find) . That amounted to I believe just two short hoses at the inlet and outlet of the fuel pump, which is electric on the rear subframe of my '65 countryman. 

I’m not sure if I have that third hose that is ‘in the boot’ of regular mini’s because I have a countryman/traveller. So hopefully there is not one I am missing that requires the tank to be dropped. 

 

Anyway after installation and running the car a bit I’m noticing what i think is a slow leak of gas  somewhere around the area of the fuel pump and was wondering if someone could say where this coming from. Obviously i was just messing around in there, so maybe i caused it, but i dont think i would have noticed if it was there already, as its not really leaving anything on the ground.

The leak smelled like gas but looked brown like oil. Let me know what you make of this.

It doesn’t even seem to be dripping, just building somewhere on the fuel pipework out of sight above the subframe. 

 

In addition, I’m noticing dark splotches that come out of my exhaust pipe and stain the driveway. not sure if this is a separate issue . see the attached .mov movie video file to see what i mean about that. 

 

do i need new fuel pipe work / pipeline ? any way to be sure? i'm a little scared of doing that job on this 'long' car. 

 

photos of everything below. 

Also FYI the bottom of my car has been sprayed with some kind of rust protection a long time ago thats what the gunk is. 

 

 

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thanks again for all the great help, i've learned a lot. 
 
IMG_0269.jpeg

 
Seeing your engine bay fuel hose: I strongly suggest you REPLACE all them hoses with new ethanol resistant ones BEFORE your next trip. Not worth loosing your car in a fire.

Thanks this sounds important - I’m not sure which ones need replacing tho! Is it just the one I circled in red, in the photo above ?

 

There is the one circled in red and the ones around the fuel pump - either on the back of the engine if it's a mechanical fuel pump, or around the rear subframe on a car with electric fuel pump. And one more attached to the fuel outlet on the tank in the boot. If all is as originally fitted.
Best to check all along the fuel supply pipework.
And avoid buying budget fuel hose. - if there is a chance you should buy fuel hose to DIN 73379-2A standard. The 2A means resistand to E10. I don't know the equivalent BS or EN standard.
https://cohpro.com/cohline-fuel-hose/

 

 

 

Mk1 tanks with electric pumps should have a coarse fuel filter inside the tank on the outlet pipe. This should prevent any material being sucked into the fuel pump that could damage it

If you put a regular fuel filter pre pump, you will need to check on it regularly to make sure it doesn’t clog up. If it clogs up and the pump runs dry it can burn out the pump.

SU pumps are good at “pushing” the fuel from the back of the car to the front, but not as good as “sucking” the fuel along a distance or against a blocked filter.

Facet pumps normally come with a pre pump filter, but often a pre pump filter will be a bit coarser than a post pump filter

Just like a lot of things on a mini, there are different ways to do the same job, so do your research, ask some questions and figure out which way you want to go.

Edited by soulslinga, 02 March 2023 - 01:36 AM.

[cal844]

I'd be changing that fuel pipe. I use 8mm microbore from B&Q or any plumbing or heating suppliers.

Sometimes I need to heat the fuel hose up a little to allow it to swell in diameter to fit.. Also make sure the end of the pipe isn't sharp with burrs

Edited by cal844, 02 March 2023 - 10:41 AM.