Hello community,
Since I've been driving my G4 AHF (purchased with 2 years and 48,000 km - the Golf is not mine

), I've noticed a slight amount of moisture at the ESP bearing. So far
no real problem, but now, 5 1/2 years and 140,000 km later, it's starting to become a bigger issue. So, I plan to replace the ESP and reseal it soon. This shouldn't be a big problem either, I've already done it on my wife's Passat AFN. However, the AFN had a single-piece pump gear while the AHF had a two-piece one. Now, the smart people at Erwin (siehe
Fehlerdatenbank) are saying that you should never remove the large nut for the pump hub, as this would make the pump unadjustable with workshop tools. Now, I don't believe everything I read. '

' sagt auch jeder, dass man einen MSW nicht abdichten kann, da man die Einstellung ohne Prüfstand nicht hinbekommt - aber es geht doch. Nach intensiver Untersuchung des ESP-Aufbaus und seiner Funktion habe ich mir überlegt, den Pumpenhub bei OT vor dem Ausbau mit der Messuhr zu ermitteln sowie eine Markierung an ESP-Welle und -Nabe anzubringen, und zwar bevor die Zentralmutter gelöst wird. Now comes my problem - since I have never worked on VP-Diesel engines before the TDI, I do not have any experience with measuring the pump stroke.
Therefore, here is my thought process regarding the approach - if anyone has relevant experience, I was actually just looking for confirmation of my plan or also suggestions for modifications:
1. Motor running on cylinder 1.
2. Use a measuring tool and set it to 2 ? mm
3. Turn the engine back until the gauge no longer moves.
4. Set the measuring instrument to zero.
5. Slowly bring the motor up to operating speed and determine the pump stroke.
I then wanted to set the ESP to this value before mounting the wheel, and then make a dynamic adjustment with VAG-COM afterwards.
Does anyone have precise pump stroke values at OT for the AHF?
Thank you in advance, Merry Christmas and a Happy New Year.