REPAIR INSTRUCTIONS
Page 225
9. Place the upper thrust washer sections in
position in the cylinder block at the center
bearing, No. 4, location as shown in
Figure 236. The steel side of the thrust
washer goes toward the block, the copper or
aluminum-faced side goes toward the
crankshaft (this applies to upper and lower
thrust washer sections). Oil reservoir
grooves are cut into the aluminum-faced
side, as well as tip-face reliefs.
Use standard thickness thrust washers initially.
Beginning October 1996, a new style thrust
washer was phased into production for E-Tech™
engines. These thrust washers are steel backed
with an aluminum facing material on the side
installed against the crankshaft. The obvious
color difference of the previously used bronze/
steel washers is no longer present making it
difficult to determine which side of the washer is
meant to be installed against the crankshaft. Care
should be taken when installing these aluminum
faced thrust washers as the steel side is nearly
the same color as the aluminum surface. Locate
the oil the reservoir grooves and the tip reliefs cut
into the aluminum, and install those sides against
the crankshaft.
235
Figure 235 — Thrust Washer Styles
To prevent damage, ensure the thrust washers
are installed in the correct position when
assembling an engine. Failure to install the thrust
washer properly will result in rapid wear of the
area where the crankshaft contacts the thrust
washer.
5_106_00.bk Page 225 Friday, August 4, 2000 11:17 AM
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