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diesel_jim

Member Since: 13 Oct 2008
Location: hiding
Posts: 6092

Fuel pumps?

The pump on my project90 is whining like a banshee. so much that it's (obviously knackered) not giving enough pressure to run the engine (at least that's what I think is up with it.... it ran last week for a short while whilst I was playing with it, but as I had no fan belt on as there was no radiator/pipes/PAS pipes I didn't want the engine to get hot, so just ran it for 10 seconds or so)

Can these pumps be swapped with a disco one? are they the same size etc? can one pump be built out of 2 (i.e. the knackered lower bit of my 90 pump and the good working bits of a disco one??)

Or a 110 one?

Any ideas (apaft from forking out for a *new* one)

4th Nov 2012 6:25pm

Laurie

Member Since: 22 Feb 2008
Location: Sussex, England
Posts: 2897

2005 Defender 90 Td5 XS CSW Bonatti Grey

As long as you use the Ninety 'frame' to keep the depth right, I can't see any reason why not.

4th Nov 2012 6:54pm

diesel_jim

Member Since: 13 Oct 2008
Location: hiding
Posts: 6092

That's what I thought. cheers

4th Nov 2012 6:56pm

diesel_jim

Member Since: 13 Oct 2008
Location: hiding
Posts: 6092

So.... the disco Td5 fuel pump is exactly the same as a 90 (and I suspect a 110) pump, just the float arm is different... but they unclip, so it takes about 30 seconds to swap them over.

Handy tip!

10th Nov 2012 5:58pm

yobbie

Member Since: 15 Nov 2010
Location: Isle of Wight
Posts: 712

1999 Defender 90 Td5 Heritage LE Bronze Green

Do you know the position in the floor that would needed to be cut to make a hatch to be able to remove a pump without removing the tank?

10th Nov 2012 9:17pm

diesel_jim

Member Since: 13 Oct 2008
Location: hiding
Posts: 6092

On a 90? Yes, got mine cut out with an inspection plate.

Will post up the dimensions tomorrow.

10th Nov 2012 9:39pm

yobbie

Member Since: 15 Nov 2010
Location: Isle of Wight
Posts: 712

Thanks, it's a job I always thought could be worthwhile.

10th Nov 2012 9:42pm

diesel_jim

Member Since: 13 Oct 2008
Location: hiding
Posts: 6092

Download .pdf for 110 Td5 tanks

Download .pdf for 90 tank

The writing is in Italian.... that's 'coz I stole them off the interweb ages back. but you can see where the hole should go easily enough.

I used an inspection plate from an old discover1 that was in the scrap yard. held in with 6 self tappers (into those locut plastic insert things)... although you could just screw straight into the floor plate if you wanted.

The disco inspection plate is plenty big enough to get the Td5 pump up through.

11th Nov 2012 11:43am

yobbie

Member Since: 15 Nov 2010
Location: Isle of Wight
Posts: 712

Can the hole be cut in the floor with the tank still in situ or does it need to be removed?

14th Feb 2013 9:40pm

238kirk

Member Since: 03 Nov 2012
Location: Doncaster
Posts: 233

yobbie wrote:
Can the hole be cut in the floor with the tank still in situ or does it need to be removed?

Yes but don't cut too deep as the pipes etc are under there, I used a grinder with a thin cutting blade and just cut through the surface, you've got at least 25mm to play with though

14th Feb 2013 9:50pm

Laurie

Member Since: 22 Feb 2008
Location: Sussex, England
Posts: 2897

If you cut through you'll remove one of the floor reinforcing secctions.

14th Feb 2013 9:54pm

davew

Member Since: 02 Jan 2012
Location: North Yorkshire
Posts: 888

1990 Defender 90 V8 Petrol PU Auto Rioja Red

If you're careful you can cut a large enough inspection hole whilst retaining most of the reinforcing bar under the floor - You will need to cut 2/3 of it through though.

If you are cutting through with the tank in, as I did, put a piece of 3mm steel plate (or similar) between the tank and the floor first. You can feed the plate in from underneath if it's not too big. It still pays to be careful, only allowing the cutting blade to go through the floor by a few mm but will save you £££ if you do slip ! http://www.yorkshireoffroadclub.net/

14th Feb 2013 11:01pm

davew

Member Since: 02 Jan 2012
Location: North Yorkshire
Posts: 888

Some pics of mine... (or Pam's !)

Click image to enlarge

Click image to enlarge

I use a 300TDi Discovery in tank unit with an external pump in case it looks odd ! http://www.yorkshireoffroadclub.net/

Last edited by davew on 14th Feb 2013 11:18pm. Edited 1 time in total

14th Feb 2013 11:15pm

Laurie

Member Since: 22 Feb 2008
Location: Sussex, England
Posts: 2897

I assume thats a 110, the pump in the 90 is central, directly below the stiffener, isn't it?

Last edited by Laurie on 14th Feb 2013 11:19pm. Edited 1 time in total

14th Feb 2013 11:18pm

davew

Member Since: 02 Jan 2012
Location: North Yorkshire
Posts: 888

No it's a 90.

I didn't use any measurements/templates, just cut a small (ish) hole central above the in tank unit - measuring from the rear and the side to get it's position. I then increased the hole outwards until I could fairly easily remove and replace the in tank unit through the hole. Hence I managed to avoid cutting through the floor strengtheners by having the hole offset slightly.

Of course there are at least two types of TD5 90 fuel tank, I know they have different filler tube diameters, no guarantee that they both have the in tank unit in the same place ! Might be worth checking in case Land Rover did move the unit on later versus early tanks. http://www.yorkshireoffroadclub.net/

Last edited by davew on 14th Feb 2013 11:29pm. Edited 3 times in total

14th Feb 2013 11:19pm

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