
STEERING
3B-25
OVERHAUL
Disassembly
1. Place the valve in a vise as shown and remove dust
cover (fig. 3B-71).
2. Remove adjusting nut (fig. 3B-72).
3. Remove valve to adapter bolts and remove valve
housing and spool from adapter.
4. Remove spool from the housing (fig. 3B-73).
5. Remove spring, reaction spool, washer reaction
spring, spring retainer, and seal (fig. 3B-74). "O" ring may
now be removed from the reaction spool.
6. Remove the annulus spacer valve shaft washer and
plug to sleeve key (See Figure 3B-75).
7. Remove clamp by removing nut, bolt and spacer or,
if crimped type clamp is used, straighten clamp end and pull
clamp and seal off end of stud (fig. 3B-76).
8. Carefully, so as not to nick the top surface, turn
adjuster plug out of sleeve (fig. 3B-77).
9. Remove the adapter from the vise and invert,
perm itting the spring and one of the two ball seats to fall free.
10. Remove the ball stud and the other ball seat and the
sleeve will fall free.
Inspection
1. W ash all metal parts in nontoxic solvent and blow dry
with compressed air.
2. Inspect all parts for scratches, burrs, distortion,
evidence of wear and replace all worn or damaged parts,
including m ating parts when necessary.
3. Replace all seals, gaskets, covers with approved
service parts.
Repairs
NOTE:
The Corvette valve incorporates a 40 lb.
centering spring. The Corvette valve incorporating this
spring is identified by an
"C"
stam ped on the dust cover.
In case a connector seat becomes damaged, proceed as
follows:
To remove connector seat, tap threads in center hole
using a 5/16-18 tap. Thread a bolt with nut and flat washer
attached into tapped hole so th at the washer rides against the
face of the port boss and the nut rides against the washer.
Fig. 3B-71--Dust Cap Removal
OPERATIONS
Hold the bolt from rotating while turning the nut off the bolt.
This will force the washer against the port boss face and will
back out the bolt thus drawing the connector seat from the
top cover housing (fig. 3B-78). Discard the connector seat.
Clean the housing out thoroughly to remove any tapping
chips.
Drive new connector seat against housing seat, using
Tool J-6217, being careful not to damage either the connector
seat or the housing seat (fig. 3B-79).
Assembly (Fig. 3B-81)
1. Replace the sleeve and ball seat in the adapter, then
the ball stud, and finally the other ball seat and the spring,
small coil down.
2. Clam p the adapter in vise, put the shaft through the
seat in the adjuster plug and screw adjuster plug in sleeve (fig.
3B-80).
3. T urn the plug in until it is tight, then back it off until
the slot lines up with notches in the sleeve.
4. Install new seal and clamp over stud so lips on seal
mate with clamp. (A nut and bolt attachm ent type clamp
replaces the crim ped type for service fig. 3B-76).
5. Center the ball stud, seal and clamp at opening in
adapter housing, then install spacer, bolt and nut.
6. Insert the key, making sure that the small tangs on
the ends of the key fit into the notches in the sleeve (fig.
3B-82).
7. Install the valve shaft washer, annulus spacer, and the
reaction seal (lip up), spring retainer, reaction spring and
spool, washer and adjustm ent spring. (Install "O" ring seal
on reaction spool before installing spool on shaft.) Install the
washer with the cham fer "up".
8. Install the seal on the valve spool (lip down), then
install spool in housing being careful not to jam spool in
housing.
9. Install housing and spool onto adapter. The side ports
should be on the same side as the ball stud. Bolt the housing
to the adapter.
10. Depress the valve spool and turn the locknut onto
the shaft about four turns with a clean wrench or socket.
Fig. 3B-72--Removing A djustin g Nut
Summary of Contents for 1977 10 Series
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Page 65: ...STEERING 3B 23 Fig 3B 65 M easure Back and Remark Housing Fig 3B 67 Tighten Lock Nut...
Page 86: ...4B 14 OVERHAUL MANUAL Fig 4B 28 Gear Teeth C ontact Pattern Check...
Page 125: ...REAR AXLE DIFFERENTIAL 4B 53 Fig 18E Gear Teeth Contact Pattern Check...
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Page 164: ...4C 8 OVERHAUL MANUAL Fig 4C 12 Gear Tooth Pattern Contact Pattern...
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Page 322: ...400 7A 2 OVERHAUL MANUAL Fig 7A 1C Side Cross Section Typical...
Page 444: ...7B 64 OVERHAUL MANUAL Fig 7B 11S M od el 2 03 Transfer Case Exploded V iew...
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