Diesel Leak...overfilled or Pump Seal?

Dhammadad · Mar 2, 2021

Hi everyone!

2001 Disco TD5

I noticed a small amount of diesel on the floor the other day and ultimately discovered that there is a leak coming from the seal around the fuel pump. Its NOT the hoses as I double checked this. Looking closer it seems that the metal ring that hold the pump in place wasn't flush. So I removed it, cleaned everything up and put it all back. Its still leaking, although not as much but the fuel gauge has shot up to full - this seems more in line with its previous reading of 'nearly' full as I know it has a VERY full tank.

So what's the solution, can you overfill the tank or do I just need a new seal for the fuel pump?

Cheers!

sierrafery · Mar 2, 2021

Hi, IMO it's the seal or a crack somewhere, i'm filling it to the neck quite often and it has never leaked there

Dhammadad · Mar 2, 2021

sierrafery said:
Hi, IMO it's the seal or a crack somewhere, i'm filling it to the neck quite often and it has never leaked there

Thanks, can those seals be bought separately....don't really want to fork out for a new pump just as its leaking!

sierrafery · Mar 2, 2021

google out ESR3806

Kenbo · Mar 2, 2021

There are two flexible pipes feed in at the top of the tank, both come from the filler. The one just over 1inch diameter was dozed and cracked on mine but I can't remember if a leak would run towards the pump or away. You might need to drop the tank a bit to check it properly. It was also poor where it connects to the filler, you could easily check it there. If it's bad on one sise it's likely it will be the same at the top of the tank.

Andy Warren · Mar 2, 2021

Dhammadad said:
Thanks, can those seals be bought separately....don't really want to fork out for a new pump just as its leaking!

Yeah seals are available separately, the p/no SF gave you has now superceded to WGQ500020 £16.32 inc. VAT. I replaced mine in Dec. when I replaced the fuel sender unit. The one that came out was a BMW part & black in colour, the new one was green & made in Italy (I know, totally useless info, I'm board, time to get a beer)

Dhammadad · Mar 27, 2021

All done. The seal on the pump was missing....thanks PO!

Diesel Leak...overfilled or Pump Seal?

Dhammadad

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sierrafery

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Dhammadad

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sierrafery

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Kenbo

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Andy Warren

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Dhammadad

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