3208 MARINE ENGINE Caterpillar


Crankshaft Seals

Usage:


9N0542 Crankshaft Seal Group
(1) 7C6660 Hydrodynamic Seal Group. (2) 7W3200 Hydrodynamic Seal Group.

(A) The distance from the edge of 7C6660 Hydrodynamic Seal Group (1) to the gasket surface of the front housing is ... 38.10 ± 0.50 mm (1.500 ± .020 in)

(B) The distance from the edge of the 7W3200 Hydrodynamic Seal Group (2) to the edge of the wear sleeve is ... 4.30 ± 0.25 mm (.169 ± .010 in)

Remove front and rear seal groups as follows:

a. Use the 1U7600 Puller Group to remove the seals.

b. Use the 5P7318 Distorter Group to remove the wear sleeves.

NOTE: Seals and wear sleeves can not be used again after the seals and wear sleeves are separated.

Install front and rear seal groups as follows:

a. Clean the outer surface of the crankshaft with 6V1541 Quick Cure Primer.

b. Crankshaft seals must be installed with the lip of the seal toward the inside of the engine as shown. The 7C6660 Hydrodynamic Seal Group is the front crankshaft seal. The 7W3200 Hydrodynamic Seal Group is the rear crankshaft seal.

c. Do not separate the seals from wear sleeves. Install the seal groups as a unit on each end of the engine as shown with correct tooling.

NOTE: See Special Instruction, SMHS8508 and SMHS8008 for necessary tools and complete procedure for installation of front and rear seal groups.

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