Here is my snow Xantia awating completion 8)


Kenny
Moderators: RichardW, myglaren
You can bench test a pump by arranging a small tankful of LHM (or Hydraflush or veg.oil but NEVER diesel) that will supply the pump. Apply voltage to the stop solenoid and spin the pump over by hand using a spanner on the sprocket nut.
I use a big funnel on the end of a length of clear hose as my test fuel supply tank.
Spin it until "fuel" starts to flow out of the return line (thus showing the lift pump is working and delivering transfer pressure) and keep turning it. You should see jets of fuel spit from the four delivery valves in turn as you keep rotating the pump. A good pump will "fire" fuel about four feet Aim the delivery valves at a wall!
NEVER use diesel for this sort of test
As you've had it all apart once, there is nothing to loose, but everything to gain, in going over it again until you find the basic fault and it works on the bench.
My test is crude but it does basically show if the pump is fundamentally functional.
Not really KennyKennyW wrote: Is there anything which I can do to lubricate the pump if it sticky![]()
As far as I recall, as it's been a while since I've stripped a Bosch, it will only reassemble one way and therefore it will be all in alignment. I'll have to dig one out I have in bits and have a check but I'm pretty sure it's not possible to reassemble it wrongly...KennyW wrote: Are there any static tests which can be done to check alignment, positioning of the various pieces of the pump.
I use white spirit and compressed air for the initial clean Kenny and follow it up with carb (or brake) cleaner if necessary.KennyW wrote: If I were to dsimantle the pump I bought, what would be the best cleaning method/fluid.