1991 350SD Odd noise at front of engine.
Beautiful body
Starts and runs well
Before everybody begins to tell me tje story of the terrible 603 motor I am very familiar with their reputation. My first question would be how can I determine if this car has a newer style replacement engine or block in it based on the vin and second I am experiencing an odd noise from the front of the motor, it almost sounds like an accessory noise. Here is a link to a video of the engine running.
Thoughts??







