R

ricky31290

Active Member
I have a 200tdi and it has been down on power and useing a lot of fuel. After a lot of searching many people are suggesting the lift pump.

What dose it actually do? Also what is the leaver for?

My "leaver" is on the right side of the pump but I have looked a few other pumps and they are on the left? Would this suggest I have the wrong one fitted?

Thanks
 
The lift pump is driven from the cam shaft and basically pumps fuel from the tank to the inj pump, the inj pump can draw its own fuel but not enough to get full power from the engine.
The hand lever is connected to the operating arm for the diaphragm, if this feels loose/floppy it means the linkage has broken inside the pump itself.
Got all my power back after fitting new pump, not massively better but you can certainly tell.


Lynall
 
Thanks for the reply.
Yes my leaver is very loose. I tried running it with the leaver down with no difference at all (not sure if I should do that)! After giving it a few revs it moved the leaver back up from the bottom by about 10mm. Surely it should push it right back up to the top?
 
my old lift pump felt the same. like the leaver was doing nothing when pumping it. turned out the leaver was broken. undo the outlet pipe ontop of teh lift pump and pump the leaver, see if it pushes anything through.
 
Tried it and there was nothing. Going to get a new pump tomorrow ans they are only £16.
Im hoping this has something to do with it being down on power.
 
The lift pump lever will feel loose or pressurised, depending on where the camshaft stops when you turn the engine off. If it feels loose, like it's not doing anything, just spin the engine over either by hand or on the starter, and try again, until you can feel pressure on the lever.

One piece of advice would be to avoid cheap lift pumps at all costs; I'm on my fourth one at the moment, and it's showing signs of failure after less than 6 months. Needless to say, the next one I fit will be genuine -- either that or I fit an electric one! :p:rolleyes:
 
The one I have fitted at the moment is a genuine pump. My plan is to buy a non gen one, (only £16) and if it makes a difference I will go and buy a genuine one. If not, ill re fit my original one and keep my other on me as a spare.
 
ricky31290 said:
The one I have fitted at the moment is a genuine pump. My plan is to buy a non gen one, (only £16) and if it makes a difference I will go and buy a genuine one. If not, ill re fit my original one and keep my other on me as a spare.
Click to expand...

Good plan ;)
 
Just for future reference I changed the lift pump and it now drives much better! It now picks up through the whole rev range. It felt very flat once it was on boost before, almost like it had a faulty turbo.
 
ricky31290 said:
Just for future reference I changed the lift pump and it now drives much better! It now picks up through the whole rev range. It felt very flat once it was on boost before, almost like it had a faulty turbo.
Click to expand...

is this with the genuine pump?

if your gunna change it make sure you dont get a britpart... i went through 2 of them in the space of 3 months haha
 
ricky31290 said:
Just for future reference I changed the lift pump and it now drives much better! It now picks up through the whole rev range. It felt very flat once it was on boost before, almost like it had a faulty turbo.
Click to expand...
Interested in this....Can you tell us which pump you bought? I have seen some Delphi ones for around £25
 
ricky31290 said:
It was one of the delphi pumps for £25 pound off ebay.

Are the britpart ones really that bad?!
Click to expand...

Yes Britpart really are that bad... and the Delphi pumps aren't that much better, Pos on here and I have had endless problems with the diapragms failing, levers shearing off, leaks etc etc
 
You must log in or register to reply here.

Similar threads

B
19J DPS injector pump help!!!!!!!!!!
Replies
14
Views
1K
miktdish
miktdish
AH-4x4
Electric Steering Pump - Swap NTC8287
Replies
8
Views
523
boguing
boguing
DefendingLancashire
300TDI Four-parter: brake wear, lift pump / fuel filter, turbo, and bushes / squeaking
Replies
13
Views
534
miktdish
miktdish
stumpyj
(2000 TD5 90 defender)TD5 Fuel Pump
Replies
4
Views
362
stumpyj
stumpyj
Rob 90
2.5na Diesel lift pump type
Replies
6
Views
1K
Rob 90
Rob 90