[/QUOTE]Gordon Raymond is the man to rebuild a pump. I'm not sure if he can help one of these new manufactured ones.
...Mine read 6 bar (on hi-quality STACK instrument) cold idle, 1.5-2 bar at hot idle, 5 bar at 5K rpm hot. High, but not overly high ... ?
[/QUOTE]I rebuilt my original pump for my 2l engine and using 30w running in oil, the pressure has been fine. However, after 600 miles, I've now switched to VR1 which is 20w50, but the viscocity at low temps (centistrokes) is very high. I'm nervous of the effect on low temp oil pressures now.... Does anyone run (say) a 15w40 (with sufficient ZDDP)? Cold weather is not an issue (UK based).
I've refused to use the 'cheap' new pumps already ten years ago. Those are big crap. Only those from the OEM manufacturer are usable. But a lot of people don't want to pay twice the price tag of the 'cheap' ones.I sent an inquiring email to Tom at Classic Alfa asking if they have any issues. It is apparent it's not a vendor but rather a manufacturing issue with the "German" pumps that are sold by everyone.