"normal adjustment" being the crude DIY'er method of adjusting the ALDA. The correct/precise way being having it done professionally.

Where did I obtain *what* specification? The boost level? If so, I've gotten it from other MB threads from people who are in-the-know. Official Max boost should be ~.95 Bar (~13.75 PSI).

Forgot to mention before.....max boost pressure will NOT be achieved if the ALDA is set too low (not enuf fuel). Insufficient fuel will be delivered which means max possible boost pressures will not be achieved.

Conversely, If the ALDA is adjusted for too much fuel, there will be excessive fuel that can't be burned at full load and speeds above 4K RPM and will end up lowering combustion temps and creating more smoke....BUT max boost pressures *will* have been achieved.

Chris
'85 300SD