C7 Industrial Engines Disassembly and Assembly – Crankshaft Rear Seal – Install

Installation Procedure

Note: Replacement rear seals are supplied with a wear sleeve. This wear sleeve must be installed with the rear seal. New engines from the factory do not have a wear sleeve. Do not install the rear seal if any of the following conditions exist:


  • The crankshaft rear seal has been separated from the wear sleeve.
  • The rear seal group appears to be damaged.
  • The crankshaft rear seal has been lubricated. The seal is designed to be installed dry.


  1. Ensure that the rear of the crankshaft is thoroughly clean and dry prior to the installation of the crankshaft rear seal.

  1. Use Tooling (E) to install crankshaft rear seal (1) .

End By: Install the flywheel. Refer to Disassembly and Assembly, “Flywheel – Remove and Install”.

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