Ninety-Eight FWD V6-181 3.0L (1985)
Figure 3 - New Thrust Bearing Assembly And Input Housing
BULLETIN COVERS: (Figures 2 and 3)
A new Thrust Bearing Assembly (803) replaces the Input Shaft/Sun Gear Thrust Washer (628) and Lock Up Sleeve (690). The Thrust Bearing Assembly
will minimize friction. Under some operating conditions, friction may result in excess heat damaging the Thrust Washer (628) and melting the plastic
shoes of the 3rd Roller Clutch Assembly (644). If the plastic shoes melt, the rollers will not be held and the loose rollers will cause failure of the 3rd
Roller Clutch (causing no 3rd Gear). For this change to be implemented the following parts were modified:
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Input Housing and Shaft Assembly (626) mating surface for the new Thrust Bearing (803) has been reduced 0.9 mm (0.03") to make room for
the new bearing. The Lock Up Sleeve is not needed anymore and is eliminated.
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The 3rd Roller Clutch Cam (696) I.D. has been opened up 6.5 mm (0.26") wider and the lip eliminated to accomodate the new Thrust
Bearing Assembly (803).
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The 3rd Roller Clutch Cam (643) has been made 0.96 mm (0.04") thinner to accomodate the increased thickness of the new Thrust Bearing
Assembly (803). The edge of the 3rd Roller Clutch Cam (643) that faces the new Thrust Bearing Assembly (803) now has a squared off edge.
This is for more contact area with the rollers since the Cam is now thinner but the rollers stayed the same length.
