The diameter of the tip used in the 8N7001 Fuel Nozzle made by Caterpillar is larger than that of the tips used in Pencil-Type fuel nozzles made for Caterpillar.
The 8S2252 Carbon Seal Tool can be used for installation of the carbon seals (see Illustration 1) on the 8N7001 Fuel Nozzle if a modification is made to the tool. After modification, the tool will fit around the larger tip.
The 8S2252 Carbon Seal Tool must be drilled out to .332" (8.5 mm) to a depth of .060" (1.5 mm), as shown in Illustration 2.
Illustration 1. Location of carbon seals in fuel nozzles.
Illustration 2. Dimensions for modification of 8S2252 Carbon Seal Tool.