Chevrolet 1977 10 Series, Repair Manual, Page: 57 / 468

STEERING
3B-15
RACK
PISTON
Fig. 3 B - 3 7 - R e m o v i n g Rack-Piston
OVERHAULING IN D IV ID U A L UNITS
Adjuster Plug Assembly
Disassembly
1. If the oil seal O N LY is to be replaced, and not the
bearing, install the adjuster plug loosely in the gear housing.
Remove the retaining ring with Internal Pliers J-4245. W ith
a screw driver, pry the dust seal and oil seal from the bore
of the adjuster plug being careful not to score the needle
bearing bore (fig. 3B-39). Discard the oil seal.
2. If the thrust bearing O N LY is to be removed, pry the
thrust bearing retainer at the two raised areas with a small
screw driver (fig. 3B-40). Remove the spacer, thrust bearing
race, thrust bearing and the flanged thrust bearing race.
3. If the needle bearing is to be replaced, remove the
retaining ring using Internal Pliers J-4245. Remove thrust
bearing as outlined in Step 2 above. Drive needle bearing,
dust seal and oil seal from adjuster plug using Bearing
Remover J-8524-2 and D river J-7079-2 as shown in Figure
3B-41. D iscard the oil seal.
4. Wash all parts in clean solvent and dry parts with
10 11
1. R eta in in g Ring 5 . A d ju s te r Plug 8 . Thrust Bearing
2 . Dust S e a l 6 . " O " Ring 9 . Thrust W asher (S m a ll)
3 . O i l S eal 7 . Thrust W asher 10. S p a c e r
4 . N e e d le B earing (L a rg e ) 1 1 . R e ta in e r
Fig. 3 B - 3 9 ~ A d j u s t e r P lu g - E x p lo d e d V ie w
compressed air.
5. Inspect thrust bearing spacer for wear or cracks.
Replace if damaged.
6. Inspect thrust bearing rollers and thrust races for
wear, pitting or scoring. If any of these conditions exist,
replace the bearing, thrust races, spacer and retainer.
Assembly
CAUTION: Place a block o f wood under the
adjuster plug to protect the thrust bearing surface.
1. If the needle bearing was removed, place new needle
bearing over Tool J-8524-1 and J-7079-2, with the bearing
m anufacturer’s identification tow ard the tool, and drive the
bearing into the adjuster plug until the tool bottoms in the
housing (fig. 3B-42).
2. Place dust seal and a new oil seal on Tool J-8524-1
(lip of seal away from tool). Lubricate seal with Power
Steering Fluid and drive or press seals into adjuster plug until
seated (fig. 3B-43). W hen properly installed, the stub shaft
seal under the dust seal and the inner dust seal lip is not
BEARING SCREW DRIVER
Fig. 3B-38--Removing A djuster Plug Fig. 3B-40--Removing Retainer