HOUSING-SEAL 9J3893 - Caterpillar

Note: To measure a crankshaft that may be bent, a procedure must be followed. Refer to the Guideline for Reusable Parts And Salvage Operations, SEBF8054, "Procedure to Measure and Straighten Bent Crankshsfts" for the correct procedure.
Illustration 1 g01139950
(1) The pin extends from the surface of the crankshaft face. Distance ... 8.4 mm (0.33 inch) (2) Thrust plates are used on the center main bearing only. Thickness of new thrust plate ... 5.74 0.04 mm (0.2260 0.0016 inch) (3) End play New crankshaft ... 0.13 to 0.50 mm (0.005 to 0.020 inch) Maximum end play with used bearings ... 0.89 mm (0.035 inch) (4) Minimum torque for six plugs ... 23 N m (17 lb ft)Note: Stake the plugs with a punch in order to hold the plugs tight. (5) The dowel extends from the surface of the crankshaft. Distance ... 4.1 0.5 mm (0.16 0.02 inch) (6) The gear can not exceed the following temperature for installation on the crankshaft. ... 205 °C (400 °F)Note: Install the crankshaft with the timing mark V on the outside of the crankshaft. (7) The 2W-1734 Crankshaft Seal Gp is installed on the rear of the crankshaft. The seal driver can not contact the seal inside a 177.80 0.25 mm (7.000 0.010 inch) diameter. (8) (9) Refer to the Specifications Manual, "Connecting Rod and Main Bearing Journals" for more information. (10) The 2W-1733 Crankshaft Seal Gp is installed on the front of the crankshaft.Removal of Front and Rear Crankshaft Seal Groups
Note: The seals and the wear sleeves can not be used once the seals and wear sleeves are separated.
Use the 1U-7600 Slide Hammer Puller Gp in order to remove the crankshaft seals.
Use the 5P-7318 Wear Sleeve Distorter Group in order to remove the wear sleeves.Installation of Front and Rear Crankshaft Seal Groups
Clean the outer surface of the crankshaft with 4C-9500 Quick Cure Primer .
The crankshaft seals must be installed with the lip of the seal toward the inside of the engine. Refer to Illustration 1. Make sure that the correct seal is installed on each end of the crankshaft. Note: No lubrication is needed to install the wear sleeves and the seals.
Do not use separate seals and separate sleeves. Install the seal groups as a unit. Use the correct tools for the installation.Note: Refer to Special Instruction, SMHS8508 for the necessary tools and the complete procedure to install the crankshaft seals.