1988 Mercedes Benz 300d Repair Question
Topics covered: Torque.
Mileage: 400,000 miles.
Mileage: 400,000 miles.
Asked on December 28, 2010
Blowing round injector nozzles
Hi I have a mercedes 300D 124 series that has done 400,000kms. It recently started running rough and I found that 1,2,3 injector were blowing from round the injector where it fits into the head. I have removed the injectors had them tested (OK) and cleaned the threads and the injector holes and refitted with new washers but they're still blowing. Any one know what might be the problem.
Asked by PuffadderAnswer
Replied on February 5, 2011
There still may be carbon deposits in the base of the injector port stopping the injector for seating fully, i have also seen cracking in these heads, but never from more than 1 port.
Mark (mhpautos)
Replied on December 11, 2011
Remove injectors, apply Anti-size to the threads and torque to 60ft.lbs
