Raining again going to have to resume tomorrow ... Need to charge battery so will leave it charging overnight, have another go tomorrow I hope.Steady stream of bubbles in the clear pipe by
The little tub is filling quite quickly, must have emptied it 10-15 times at around 3/4 full but still no start... theres still froth in the tub and lots of bubbles visible in the pipe. Assuming I should keep trying at least a bit longer. Unfortunately on my own doing this although I have sufficient reach to be able to operate the vacuum pump whilst cranking the ignition and watching over the tub.Difficult to be sure at this stage. Keep sucking on it and crank it (easier with two people). Be prepared for it to start. If it starts that little tub will fill up with frothy fuel very quickly so don't get all excited at it starting, keep an eye on the tub so you switch it off before you get diesel in the vacuum pump workings. If it sounds like it's going to start and the tub is already quite full, it is prudent to stop and empty the tub into the fuel tank so when it starts you have an emptyish tub.
If you get that far then you are going to need some sort of connector to join the tub end of the clear tube to the rubber return line to the tank. You will then have a completed (sealed) return line with a plastic tube in it. Now restart and tickover until frothy bubbles clear. If they don't clear after about 10 minutes then you have air continually being drawn into the fuel feed and being bled out by the tandem pump. If the bubbles do clear, switch it off for a period of time (1hr - 1day) and repeat. If it doesn't start again or starts badly and you see froth in the clear tube again then you have an "air in" leak in the fuel supply system. If it starts fine (after standing overnight) and you see no air at all in the clear tube then the problem is elsewhere.