Petekoad · Jan 6, 2012

I have a problem. All has been fine until a couple of weeks ago when the engine would struggle to get beyond 3500 revs. So I thought first thing to do was change the fuel filter.

Problem now is that the filters not getting any fuel. I primed it by filling it with diesel. It ran and then started to judder and when I pressed the accelerator it died.

It now starts but dies as soon as you press the accel. Take off the filter and it is only a 3rd full. Refill and same again.

The lift pump does not appear to be doing anything. Read that you need the engine in the right place but not sure how to do that. Help !!!!!

lazydog · Jan 6, 2012

turn the engine a few degrees to get the pump off cam,then pump by hand but only works very last part of stroke.\simple and cheap to replace.

defcrazy · Jan 6, 2012

dont waste time trying to prime it ,that hand pump needs replacing .

dyte · Jan 6, 2012

Slacken the return union on the fuel pump start then close it when running good

thebiglad · Jan 6, 2012

Petekoad said:
I have a problem. All has been fine until a couple of weeks ago when the engine would struggle to get beyond 3500 revs. So I thought first thing to do was change the fuel filter.

Problem now is that the filters not getting any fuel. I primed it by filling it with diesel. It ran and then started to judder and when I pressed the accelerator it died.

It now starts but dies as soon as you press the accel. Take off the filter and it is only a 3rd full. Refill and same again.

The lift pump does not appear to be doing anything. Read that you need the engine in the right place but not sure how to do that. Help !!!!!

What vehicle/year/engine/gearbox?

Soloby Rob · Jan 6, 2012

thebiglad said:
What vehicle/year/engine/gearbox?

He's not gonna tell you that, keeps ya guessing

It's odd how most newbs these days just post a problem, get some answers and sod off never to be heard from again. :doh:

dyte · Jan 6, 2012

Soloby Rob said:
He's not gonna tell you that, keeps ya guessing

It's odd how most newbs these days just post a problem, get some answers and sod off never to be heard from again. :doh:

Tis a forum lol maybe he does not want to be your friend

1968unclefester · Jan 6, 2012

just had simler poblem with mine ,remove and clean out sediment filter bowl near front of fuel tank near o/s/r wheel , also check gauze in top of lift pump , the only way i could get mine to bleed up was to have turning over with bleed undone on filter housing

Soloby Rob · Jan 6, 2012

dyte said:
Tis a forum lol maybe he does not want to be your friend

Is this a trick question :whoosh:

Petekoad · Jan 7, 2012

Thanks for all your suggestions. Picking up lift pump in a couple of hours and will let you know how it goes.

Cleaned out the sedimenter and all lines are clear so I am hoping the pump is the problem.

Sorry to ask a dumb question but how do you manually turn the engine?

Petekoad · Jan 7, 2012

Just for completeness it is a 95 plate Discovery 1 manual 300tdi.

Thanks again for your feedback.

dyte · Jan 7, 2012

Petekoad said:
Thanks for all your suggestions. Picking up lift pump in a couple of hours and will let you know how it goes.

Cleaned out the sedimenter and all lines are clear so I am hoping the pump is the problem.

Sorry to ask a dumb question but how do you manually turn the engine?

Crankshaft pully nut Turn with socket

thebiglad · Jan 7, 2012

Petekoad said:
Thanks for all your suggestions. Picking up lift pump in a couple of hours and will let you know how it goes.

Cleaned out the sedimenter and all lines are clear so I am hoping the pump is the problem.

Sorry to ask a dumb question but how do you manually turn the engine?

Unplug the solenoid wire on the injection pump (stops any possibility of the engine firing up), then give the ignition key a little quick 'flick'.

Petekoad · Jan 7, 2012

So . I have fitted the new pump and it is still not drawing any fuel into the filter when I pump.

Could I have fitted it wrong? Arrgh!

Any suggestions?

Petekoad · Jan 7, 2012

BTW . There is a difference to now in that it seems to rev much higher a first before losin power and then stalling.

dyte · Jan 7, 2012

Petekoad said:
BTW . There is a difference to now in that it seems to rev much higher a first before losin power and then stalling.

Open the return union on the injection pump and start it it sounds like air to me

blue beasty · Jan 7, 2012

check the fuel line from the tank to the pump. If its split it wont leak fuel out but draw air in as is negative pressure

lazydog · Jan 7, 2012

On top of filter housing is a bleed screw loosen 1/2 turn a start engine tighten when air has come out.

Petekoad · Jan 7, 2012

dyte said:
Open the return union on the injection pump and start it it sounds like air to me

Sorry to be dumb but will this get the air out or will it show me something?

Petekoad · Jan 7, 2012

lazydog said:
On top of filter housing is a bleed screw loosen 1/2 turn a start engine tighten when air has come out.

Done this and nothing comes out. No noticeable pressure and certainly no fuel...

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Leaks an prone to bits dropping off

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