Puma fuel pump?

[twr7cx]

Anyone able to please tell me the part number for the fuel pump on a 2012 Defender 90 with Puma motor?
I had a look on Microcat and it spat out a part number for an intank pump for the 90, but I don't believe they have an intank pump.

[fatman]

It's LR006804
But what's wrong with the current pump?
PS
Eg. http://www.ebay.co.uk/itm/LAND-ROVER-DEFENDER-2-4-PUMA-INJECTOR-PUMP-lr006804-lr009587-lr010210-NEW-DENSO-/181284968834
But you can also find a replacement pump from ford parts,on some parts there are huge price differences!

[twr7cx]

The vehicle won't start. Apparently there's only 100 psi of pressure in the fuel lines when there is meant to be around 250. Fuel filter has been changed and lines bled. Runs with start ya bastard being sprayed in. Land Rover dealer advises new pump required at $1,800.00 and has to be ordered from the UK. Warranty expired in August last year.

[Tassie Bob]

Go and talk to Justin Cooper at Kingston.

[fatman]

Did this happen all of the sudden?
Maybe you mean bar and not psi?
If i remember correctly it should be around 250 bar(25MPa) on idle and up to 1600 bar(160MPa) on full load but i can't remember what pressure you should get when cranking.
There is a pressure relief valve that goes off if pressure exceeds this limit that then should be replaced and also a pressure control valve(VCV) that regulates the working pressure.
What device did you use to get the fuel pressure reading?

[twr7cx]

Vehicle is not mine - belongs to a good friend who recently returned to Australia from an overseas work trip. The vehicle has been sitting at his work for approximately six months during this time - another colleague apparently started it and ran it every now and then.

Fuel pressure was originally tested by RAC NSW bloke - likely meant bar then not psi. Was tested again at independent mechanic who bled the fuel lines etc. Vehicle was then flatbedded to Land Rover for further diagnostics and they advised fuel pump is bad as would run when Aerostart was sprayed in and new replacement pump is approximately $1,800.00 fitted but delay as parts required from the UK.

[landy]

IIRC there was a question asked in The Land Rover Owner International workshop section. The question was that the owner had been quoted some stupid price for a high pressure pump for his Puma. And could he use a second hand unit from a Transit.
The answer was yes, it's the same pump but not to go second hand but get a reconditioned Ford unit.
$1800. I'd be asking the questions too!:o

[DazzaTD5]

Just to add some info with regards to Common Rail diesels...

*In this instance what is being called "fuel pump" is a high pressure fuel pump, it pressurizes the fuel rail (the common rail). A high pressure fuel pump on a common rail diesel should not be confused with a supply/transfer/lift/low pressure pump (such as on a TD5 the transfer pump (the fuel pump) is in the fuel tank.

*Newer spec common rail diesels, the "lift" pump (transfer pump, see above) is on the engine, but still separate to the High pressure fuel pump.

*The latest series of common rail diesel (such as the VM used in the Jeeps, the Puma tdci engine in the Defenders) the "lift" pump is integrated into the High pressure fuel pump.

The control of fuel from the lift pump (regardless of being integrated in the High pressure fuel pump or not) to the high pressure fuel pump is generally controlled by a metering valve (again this can be integrated into the high pressure pump, but not always).

The other control of fuel pressure is the fuel pressure regulator on (generally) the back of the common rail. A fuel pressure sensor is also located on the common rail.

Keep in mind this a general (reasonable) explanation of fuel delivery (not including injectors). Its actually a very simply system (again thats a general sort of comment).

So my short answer is its most likely the transfer pump (alas integrated into the high pressure fuel pump).

*Another important item to note on common rail diesels is the high pressure fuel pump will deliver fuel pressures of round that 3500 PSI (on idle) upto round 25,000 - 30,000 PSI on full throttle.

*what was that price? $1800... thats not bad for a high pressure pump, I'd be surprised if a diesel injector mob arent familiar with that oh so common Denso high pressure pump.

Regards
Daz