People Hi,
it is some time now that I have tweaked the fuel pump on the 1993 evented camel. The pump was removed a few years back from the car to be repaired and when it was refitted it was not delivering the power it had before. After quite some time of not using the car I decided about two months ago to tweak it with the known method. So I turned the inside diaphragm about 180 degrees, the star wheel below about 90 degrees (all clockwise) and a few days later have also removed the metal collar from the screw at the rear of the pump and turned the "go faster" screw by half a turn.
The car immediately felt far more powerful but also developed a liking for increased temperature when pushed or on steep roads.
Then a few days ago it started having difficulties to start when hot and it now started doing so also when cold. On top of everything yesterday it decided not to start at all after switching the engine off and trying to start it again without cooling down. After leaving it to cool down for about three hours I started after about 5 seconds of cranking the starter.
Does anyone have any idea of what this could be?
I remember reading that if the advance is increased too much 200 and 300 Tdi engines tend to have a starting problem. Does the "go faster" screw at the back of the fuel pump alter the advance?
What are your thoughts and suggestions?
Take care Pantelis