Chevrolet 10 series 1973, Overhaul Manual

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STEERIN G 9-3
8.
All
except Corvette-Using a suitable size screw
driver, pry the lower bearing retainer from the
adjuster plug housing and remove the bearing (fig.
7).
9. Remove the locknut from the lash adjuster screw in
the side cover. Remove the lash adjuster screw from
the side cover by turning the screw clockwise. Slide
the adjuster screw and shim out of the slot in the
end of the pitman shaft.
10. Pry out and discard both the pitman shaft and
wormshaft seals.
Inspection
With the steering gear completely disassembled, wash all
parts in cleaning solvent. Dry them thoroughly with air.
With a magnifying glass inspect the bearings and
bearing races for signs of indentation. Also check for
any signs of chipping or breakdown of the surface. Any
parts that show signs of damage should be replaced
Inspect all seals. Any seal that is worn or has been
removed should be replaced.
Inspect the fit of the pitman shaft in its bushing in the
side cover. If this bushing is worn, a new side cover and
bushing assembly should be installed.
Check steering gear wormshaft assembly for being bent
or damaged in any way. Never attempt to salvage
steering parts by welding or straightening.
Repairs
Pitm an S h a ft an d /o r W orm shaft Seal Replacem ent
The double lipped pitman shaft and wormshaft seals
should be replaced each time a defective seal is indicated
or the steering gear is disassembled.
1. If the seals were not removed at disassembly, pry
out the old seals using a suitable size screw driver.
CAUTION:
Before installing new seals, check
Fig. 7--Removing Lower Bearing Retainer-Except
Corvette
the condition o f the pitman shaft bushing(s)
and the upper wormshaft bearing race.
2. A suitable size socket, pressing on the outer
diameter of the seal, may be used to install new
seals.
CAUTION:
Care should be taken to insure that
the new seals are not assembled in a cocked
position.
Pitm an S h a ft Bushing R eplacem ent
1. Support the steering gear housing in an arbor press
and press the pitman shaft bushing (2 bushings on
Corvette and G 10-30 Series Trucks) from the
housing using Tool J-1614, inserted from the lower
end of the housing (fig. 8).
2. Press the new bushing(s) into position using Tool
J-1614. Position the Corvette and G 10-30 Series
Truck bushings as shown in Figure 4.
NOTE: Service bushings are diamond bored
to size and require no further reaming.
Side Cover Bushing Replacement
The entire side cover assembly, including bushing, is
serviced as a unit and should be replaced when it is
desired to replace the bushing.
W orm shaft Bearing Race R eplacem ent
ADJUSTER PLUG RACES
1.
All Except Corvette--
Remove the wormshaft
bearing race using Tool J-5822 and a Slide
Hammer as shown in Figure 9.
Corvette--
Using a hammer and punch, drive the
bearing race out of the adjuster plug.
2. Press the new bearing race into position using Tool
J-5755.
Fig. 8 -R em o vin g P itm an Shaft B u sh in g -T yp ica l
OVERHAUL M ANUAL