does anyone know what pressure the lift pump on a 200tdi runs at? I'm looking at removing mine and fitting an aluminium blanking plate in it's place and then running a 12v fuel pump to feed my injection pump, this will then do away with the problem of the lift pump failures and loss of power.

will it get a genuine one should be okay ,lift pumps work by using a diaphragm on spring which in effect puts it out of gear when pressure increases above whats needed its a variable displacement pump ,0.35-0.56kgf cm squared or 11 psi

I was looking at something like a Facet red top pump as these run up to pressure and then just tick away gently until more fuel is needed

well would do it ,but you really shoudnt need to ,

I did that on the old 19j....but no idea what the pump was rated at - my local garage sourced it. Cost about 60 quid...if memory serves.

Last time I was on expedition and ran into fuel problems I did the same, used the Mr. Gasket electric diesel fuel pump for about $40 and even once everything thawed (had the problems in -12F in Wyoming) I found that turning on the electric pump between the tank and lift-pump gave quite a bit more push. I'm actually going to do the same thing on mine now as well as fitting a fuel pressure gauge. My problem is lack of top end power and having predictable fuel flow and pressure is always important. I was also thinking I'd install it inside the rear corner this time instead of on the chassis, keep it dry and easier to work on and less risk of corrosion. '

So in summary, in my experience this is a good idea and carrying a spare setup for quick swap-in (especially installed inside the rear tub) means that if it needs work at -40C then no need to crawl under and deal with having all the dilusifusion (a word a friend invented while working at an oil changer for that mix of snow and ice and dirt and salt that collects behind your wheels and in the wheel arches before melting and falling into your face while working) constantly dropping into your face.