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Home >> Chevrolet >> 2018 >> Suburban 3500 HD LT >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Engine Mechanical - 5.3L (L83) Or 6.2L (L86) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Crankshaft Rear Oil Seal Housing Replacement

Crankshaft Rear Oil Seal Housing Replacement

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Fig 1: Crankshaft Rear Oil Seal Housing
GM3277946Courtesy of GENERAL MOTORS COMPANY
Callout Component Name

Preliminary Procedure

  1. Remove the automatic transmission flex plate. Refer to Automatic Transmission Flex Plate Replacement .
1 Crankshaft Rear Oil Seal Housing Fastener (Qty; 12)
CAUTION:

Refer to Fastener Caution .


Tighten 
25 N.m (18 lb ft)
2 Crankshaft Rear Oil Seal Housing
Procedure 
To separate the rear housing from the engine, pry at the points that are shown by the arrows.
3 Crankshaft Rear Oil Seal Housing Gasket

Procedure

  1. A NEW gasket must be used when installing the rear housing.
4 Crankshaft Rear Oil Seal Housing Sealant
Procedure 
Apply a 3 mm (0.118 in) bead of RTV sealant on the engine rear cover as shown. Apply a 5 mm (0.197 in) bead of RTV sealant on the engine rear cover as shown. The 5 mm (0.197 in) bead must be applied only 10 mm (0.393 in) up from the bottom of the rear cover as shown (a). Refer to Adhesives, Fluids, Lubricants, and Sealers .