Review on 🔧 SCITOO 10pcs Seat Cutter Diesel Injector Set: Comprehensive Tool for Mercedes-Benz, PSA, Renault, Bosch by Michael Reese

As a result, the mandrel in which the reamers are inserted is not quite accurate, so that the reamers do not run with the guide on the mandrel tip when the threaded pin is screwed in. all the way down In the Mercedes OM648 CDI application, which is a 17mm flat face reamer (not tapered as the manual says) it's actually a little under 17mm. The sealing washer is installed in a shallow hole in the bottom of the injection well to center it. The reamer cuts through the top of the counterbore before cutting through the seat. While not quite ideal, bore integrity is the least of the issues if the seat needs reaming.