TDI 1Z: Einspritzpumpe lösen um Einspritzbegin zu verstellen | Posts 16+

A few months ago, I also had the problem with the injection timing slowly changing... I then had the screw and the washer examined by the dealership... The screw was 12.4, but even then, the cam lobe was already slightly worn, so I had it re-ground.

But the best part was: I would have preferred to have it done by VAG, because I thought they would know more about it, otherwise I would have gone to ATU, because I'm already on familiar terms with them. After the repair, I also went back to ATU, talked a bit with the master mechanic, and it turned out that VAG had lent ATU the special milling cutter for the crankshaft, because VAG didn't have one .
So, next time, let's go to ATU and save on labor costs...

haggis.dhi wrote:

A few months ago, I also had the problem with the injection timing slowly changing... I then had the friendly mechanics examine the screw and the washer... Screw size 12.4, but even then, the shaft was already slightly rubbing against the crankshaft, so I had it re-ground...

Hi,

Then, either the KW stub was already corroded when the screw was changed, or the torque of the 12.9 screw was incorrect }.