Ford Festiva. Manual — part 82
Fig. 9: Hitachi 6-Cylinder Compressor (5-Cylinder Similar)
Courtesy of NISSAN MOTOR CO., U.S.A.
HITACHI 5 & 6-CYL SHAFT SEAL R & I
Removal
1. Drain oil from suction port, measure oil drained and discard oil. Remove clutch hub, pulley, bearing assembly and coil assembly. See
HITACHI 5 & 6-CYLINDER CLUTCH R & I in this article.
2. Using snap ring pliers, remove retainer ring. Remove key and plug low and high pressure openings of compressor with Plugs
(KV994C4531, KV994C4532 and KV994C4559).
3. Insert Adapter (KV994C1552) into hole in middle of blind cover at low pressure side of compressor. Connect Pressurizer
(KV994C1552) to can of R-12 refrigerant. Wrap a rag around compressor shaft. Apply pressure of 28-71 psi (2-5 kg/cm
2
) at low
pressure (suction) service valve of compressor. Catch shaft seal seat in rag. See
Fig. 11
.
4. Insert shaft seal Remover/Installer (KV994C1143) through the open end of front cover. Depress carbon seal and hook tool at case
projection of shaft seal. Slowly pull out to remove shaft seal. See
Fig. 11
.
NOTE:
Check compressor refrigerant oil level when replacing seals. See COMPRESSOR REFRIGERANT OIL
CHECKING article in this section.
NOTE:
If shaft seal cannot be pulled out, reset to its original position, and pressurize again.
Fig. 10: Hitachi 6-Cylinder Compressor Shaft Seal Seat Removal
Courtesy of NISSAN MOTOR CO., U.S.A.
Fig. 11: Hitachi 6-Cylinder Compressor Shaft Seal Removal
Courtesy of NISSAN MOTOR CO., U.S.A.
Inspection
Check carbon seal surface of shaft seal for damage. Check "O" ring and carbon seal contact surface of shaft seal seat for damage. Make sure
that "O" ring contact surface on front cover is not damaged. Make sure refrigerant oil is applied to oil seal in shaft seal seat.
Installation
1. To install, reverse removal procedure. Ensure shaft seal contact surface is free of dirt. Lubricate with refrigerant oil. Cap end of
compressor shaft.
2. Using Guard (KV994C1143), insert shaft seal. Be sure shaft seal case is aligned with shaft. Apply force to turn seal to left and right.
Ensure shaft seal seats properly in shaft cut-out.
3. Fit "O" ring to outside groove of shaft seal seat. Ensure "O" ring seats properly. Apply refrigerant oil on contact surfaces and around
shaft seal seat. Lightly coat surface of shaft with refrigerant oil.
4. Install key on compressor shaft. Using snap ring pliers, compress retainer ring and fit retainer ring into front cover. Seat retainer ring
firmly in groove. Thoroughly wipe grease or oil from shaft surface.
5. Connect Installer (KV99412329) to shaft of compressor, and turn shaft 5 or 6 times in a clockwise direction to seat seal. See
REFRIGERANT OIL & R-12 SPECIFICATIONS chart in this section for system capacities.
MATSUSHITA ROTARY VANE CLUTCH R & I
Removal & Installation
1. Insert two 5 mm bolts into threaded holes in armature. Using a screwdriver as lever in between bolts, remove center bolt. remove
armature and shim from shaft.
2. Remove snap ring. Using a puller, remove pulley. Disconnect electrical leads from field coil. Remove 3 field coil mounting bolts.
Remove field coil. See
Fig. 12
. To install, reverse removal procedure.
Fig. 12: Exploded View of Rotary Vane Compressor (Matsushita)
Courtesy of SUBARU OF AMERICA. INC.
NIPPONDENSO TV12 ROTARY VANE CLUTCH R & I
Removal
Remove compressor from vehicle and place on work bench. Holding clutch with Clutch Holder (00007-10331), remove shaft nut. Install
Clutch Disc Remover (4992-02-020) and remove clutch disk and shims. Remove pulley snap ring and tap pulley (with bearing) off of
compressor with plastic hammer. See
Fig. 13
.
Installation
To install, reverse removal procedure. Ensure pulley-to-clutch disc clearance is .016-.024" (.4-.6 mm). Adjust (if necessary) by adding or
subtracting shims.
Fig. 13: Exploded View of Rotary Vane Compressor (Nippondenso TV12)
Courtesy of MAZDA MOTORS CO., U.S.A.
NIPPONDENSO 6 & 10-CYL CLUTCH R & I
Removal
1. Remove A/C compressor. Remove pressure plate shaft bolt using socket wrench and Clutch Stopper (07112-76060). Install Clutch
Remover (07112-66040) on pressure plate. Using clutch stopper and socket wrench, rotate clutch remover to remove pressure plate.
2. Remove shims from pressure plate. Remove snap ring from compressor. Tap rotor off shaft with plastic hammer. Disconnect stator wire
from housing. Remove snap ring from inside stator. Remove stator. See
Fig. 12
.
Installation
To install, reverse removal procedure. Ensure snap rings are installed with beveled side up. tighten shaft bolt to 10 ft. lbs. 14 N.m). Ensure
clutch clearance is .014-.026" (.36-66 mm). adjust clearance by adding or subtracting shims as necessary.
NIPPONDENSO 6 & 10-CYL SHAFT SEAL R & I
Removal
1. Hold clutch hub stationary and remove center nut. Screw remover into center of hub. Turn center bolt to remove pressure plate.
2. Remove shims from shaft. Remove snap ring from inside of pulley. Tap pulley off of shaft with plastic mallet. Be careful not to distort
pulley while removing.
3. Disconnect clutch coil wires from compressor housing. remove snap ring inside coil and lift coil off compressor. Pry dust seal out from
around compressor shaft (if equipped).
4. Place shaft key remover on shaft and turn to remove key. Remove drain plug (if equipped). Remove service valves-to-compressor body
bolts. Remove valves. Discard "O" rings. Drain oil out of compressor.
5. Remove 6 through bolts from front head of compressor and discard washers. Tap head loose from compressor; be careful not to scratch
sealing surfaces. remove snap ring (if equipped) from front housing. Press seal plate out. Remove seal from shaft. See
Fig. 14
.
Installation
1. Lubricate shaft seal with clean refrigerant oil and place on compressor shaft. Lubricate seal plate and "O" ring (if equipped) and install
in front housing. Install snap ring (if equipped).
2. Place front housing on compressor body. Install through bolts with new washers. Tighten bolts evenly and alternately to 18 ft. lbs. (24
N.m). Install shaft key using installer and plastic mallet. Insert dust seal into front of compressor.
3. Install drain plug with new gasket. Add correct amount of refrigerant oil to compressor. If service valves were removed, coat new "O"
rings with refrigerant oil and install service valves.
4. Place clutch coil on compressor and install snap ring. Install shims on shaft to adjust pressure plate-to-rotor clearance to .016-
.028" (.41-.71 mm). Tighten shaft nut to 12 ft. lbs. (16 N.m).
CAUTION:
DO NOT damage pulley when tapping on rotor.
NOTE:
Check compressor refrigerant oil level when replacing seals. See COMPRESSOR OIL CHECKING article
in the AIR CONDITIONING & HEAT section.
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