allypug
A2OC Donor
same here when I splashed out on the same new Bosch pump.. was great for about a week then back to the starting issue again.......This one is better, probably down to the stronger new bosh pump but still iffy starting.
same here when I splashed out on the same new Bosch pump.. was great for about a week then back to the starting issue again.......This one is better, probably down to the stronger new bosh pump but still iffy starting.
So thinking back what has changed, make a list of when, where the issues came about. Like easier starting when facing a certain way.same here when I splashed out on the same new Bosch pump.. was great for about a week then back to the starting issue again.......
Don't think you need one with pd do you, all done in injector itself? Haven't heard of it though.Is there a injector rail pressure sensor on these engines, so that fuel pressure at the injectors can be monitored?
Mac.
Can't be that if the car starts fine pointing downhill, I'm thinking airleak or injector sealsI havent read the whole thread as its huge, everyone wants to solve this one its very frustrating. How about cam shaft, crank shaft sensors, maybe one playing up and the poor start is the ecu recalulating the twin date fuel until it gets running?
Ahh, I'm not very up on PD technology, and it shows ...Don't think you need one with pd do you, all done in injector itself? Haven't heard of it though.
Edit: The fuel line to the pump is attached to the top of the Swirl Pot, and the other side of the the top, there's a line down to the bottom, where fuel is draw from.Risking embarrassment again, but I think the fuel gauge sender also acts as a "Swirl Pot" a mini tank that the pump draws fuel from. The idea is that the pot will contain fuel, when braking acceleration, etc, causes the level in the tank to vary widely. If that pot, or, more likely, the fuel line within it, leaks, the line will drain back and air will be drawn in, when the pd pump starts.
Mac.
Interesting, so if the system could be pressurised????When it comes to diesels the system MUST be air tight. As components age or are removed then those are the likely candidates. As John @johnyfartbox has reminded us the correct clamps are essential to ensure even clamping force is applied over all the diameter of the pipe.
Regrettably when replacing a major fuel component like the tandem is when air leaks are highlighted due to other components being disturbed i.e the fuel lines on the tandem. Very seldom can you walk up to the car and spot a puddle of diesel on the floor.
If it was a pressurised fuel system then diesel would eventually be forced out of the leaking area. As it is a vacuum type system the air is sucked in instead.
I don't think the fuel line from the tank/swirl pot can be pressurised, as the tank end is open, isn't it?Interesting, so if the system could be pressurised????
There are two potential leak points at the tank end, one where the line to the pump is joined at the outside of the sender/swirl pot, and another one on the inside.I don't think the fuel line from the tank/swirl pot can be pressurised, as the tank end is open, isn't it?
Mac.