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Actual pump in the fuel pump assembly issue


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Hi All,

I bought a fuel pump (cylinder), for my MK1 Focus, went to replace it, but when I go to close the housing to the pump it won't fit, it seems like the rubber seal is too far down, but I can't see a way to raise it without it popping off.

Any ideas please?

Hopefully someone has replaced this?

Thanks

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Been there done that, certainly got the t shirt, will look out for any photos I took at the time.

Sent from my MotoG3 using Tapatalk

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Apologies, I am trying to remember back as it was quite some time ago that I did mine. - What exactly won't go back together?

This was mine assembled with the fuel feeds:

Photo0086.thumb.jpg.332fcbe65bd085c87955171f2abfd5d5.jpg

and then with the top part of the cover removed (so just the pump and top housing):

Photo0087.thumb.jpg.ca7090ce6161b18d7d338ee4574c3caa.jpg

Looking at how much of the electrical connector of my pump was sticking out through the top face of the cover, it looks as if in your photo of the pump in the top housing the pump just isn't pushed through enough?

Sorry, it isn't clear to me what you mean by:

Quote

but when I go to close the housing to the pump it won't fit, it seems like the rubber seal is too far down, but I can't see a way to raise it without it popping off

 

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Unfortunately (I just checked) I don't have any photos specifically of that rubber seal area, sorry!

However, I also don't have any recollection of it being a problem... have you tried the "just shove it" approach? I think it is a fairly tight fit but I'd think that the pump and rubber sleeve just push complete up into that housing plate?

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Don't overdo it (I wouldn't want you to break it) but I'd certainly give it a try. As I say I don't remember it being an issue when I did mine many moons ago..
Let us know how you get on [emoji106]

Sent from my MotoG3 using Tapatalk

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Sorted, the rubber seal looked like it went one way, but upon changing it round and with a bit of fiddling, it fits aok.

Added petrol, I can hear the pump, but unfortunately it hasn't fixed my problem.

https://we.tl/p1vHrG9aLV

Took pump out again and there is fuel in there.

Can anyone suggest something else to try?

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Got some "Cold Start" and it fires up, but won't last, so that rules out spark plugs, there is new fuel, the pump pumps, the relay and fuses are ok, the only thing is that the fuel gauge says full and it's not, so will refit the pump again.

Any suggestions?

Thanks

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Pulled the fuel pump exclosure out again and did some testing.

Hooked up the battery direct to the pump and it doesn't push any fuel out of the top, it just bubbles a lot, like there's something blocking the tubes, but can't see where!

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Strange, took everything apart again, put back together and it pumps out the "white" nozzle fine.

Put back in tank, same problem.

Can rule out the pump/sender, as 100% know it's pumping out of the "white" nozzle

Also checked resistance on the float and looks fine

Maybe some sort of air blockage?

To reitereate, "cold start" works for a few seconds

Not sure what to check now.

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  • 1 month later...

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