Quote:
Originally Posted by callocco
 Looked for an hour for that Banjo bolt cannot seem to find it, was told it is behind the intake manifold...by the alda can't find that either. Was hoping to clean it after 115,000 miles. How important I don't know but seems to smoke blue when started and runs noiser than normal.. |
You need to be a bit careful about what you read on here. Some of it is flat out wrong, and a good bit of other info doesn't detail which engine is being referred to. It's as though the writer believes his five cylinder diesel is the only M/B engine on the planet.
In your case, the 603 engine in your vehicle doesn't have the mysterious "banjo bolt" for you to clean. It has a port that extends directly out of the manifold on the left side of the vehicle. What you could clean is the overboost protection valve. Follow the hose from the manifold to the electrical device at the end of the hose. This device can clog over time and prevent the boost pressure from reaching the ALDA.
Cleaning this device will not affect the blue smoke or the noise on start.