DeVille V8-4.6L VIN Y (1998)
Crankshaft Main Bearing Seal: Technical Service Bulletins
Engine - Cartridge Type Crankshaft Rear Main Seal
Bulletin No.: 00-06-01-005A
Date: August 29, 2006
INFORMATION
Subject:
Cartridge Type Crankshaft Rear Main Seal
Models:
1996-1999 Cadillac Concours, DeVille, Eldorado, Seville
1996-1999 Oldsmobile Aurora
with 4.0L or 4.6L Engine (VINs C, Y, 9 - RPOs L47, LD8, L37)
Supercede:
This bulletin is being revised to add additional information on the Cartridge Type Crankshaft Rear Main Seal. Please discard Corporate Bulletin Number
00-06-01-005 (Section 06 - Engine/Propulsion System).
A cartridge type crankshaft rear main seal (Figure 1 - number 3) has been released for the 4.0L and 4.6L engines identified above. The cartridge type
crankshaft rear main seal is identified by a metal flange located on the inner diameter of the seal which presses onto the crankshaft. The previous
crankshaft rear main seal (Figure 1 - number 2) is a conventional lip type seal and has a soft rubber like material in the center where it contacts the
crankshaft instead of this metal flange.