POWER CONTROL OUTPUT SHAFT 6D3950 - Caterpillar

START BY: a. remove valve cover base 1. Remove bolt (2) and clamp (3) that hold fuel injection nozzle (1) in place. 2. Use tooling (A), and remove the fuel nozzle from the cylinder head assembly. A replacement of carbon dam seal (5) and washer (compression seal) (4) must be made each time the fuel injection nozzle is removed.3. Remove carbon dam seal (5) with pliers and washer (4) from the fuel injection nozzle.Install Fuel Injection Nozzle
START BY:a. remove valve cover base
Before the fuel injection nozzles are installed, check for fuel leakage and the pressure at which the injection nozzle opens with tool (A). See Testing Fuel Injection Nozzles in Testing And Adjusting.
1. Make sure the bore in the cylinder head assembly and the fuel inlet fitting are clean. Use tool (C) to clean the bore in the cylinder head for the fuel injection nozzle. Use an open end wrench or tap driver to turn tool (C). 2. Install new washer (compression seal) (1) on the fuel injection nozzles.3. Put carbon dam seal (2) on the small end of tool (B). Expand it by sliding it to the large end. Put tool (B) against the fuel injection nozzle, and slide carbon dam seal (2) off tool (B) onto the nozzle. Slide the carbon dam seal into position in the groove on the nozzle. 4. Put fuel injection nozzles (3) in position in the cylinder head assembly. Push and turn the nozzle to install it into its correct position.5. Install clamp (5) and bolt (4) that hold the fuel nozzle in place.END BY:a. install valve cover base