Caprice V8-350 5.7L (1985)
Hose/Line HVAC: All Technical Service Bulletins
A/C - O-Ring Replacement & Updated Torque
85-114
1B
AUG., 1985
Subject:
A/C REPLACEMENT O-RINGS
Model and Year:
1984-85 CAVALIER 1985 IMPALA/CAPRICE
TO:
ALL CHEVROLET DEALERS
TUBE ASSEMBLY
EVAPORATOR BLOCK FITTING
This bulletin supersedes Chevrolet Dealer Service Bulletin 85-42, dated February, 1985, which should be destroyed.
All 1985 Impala/Caprice models and the 1984-85 Cavalier use "captured"- type O-rings at refrigerant hose and tube connections. All other past model
Chevrolets use the "standard type" O-ring configuration. The A/C compressor ports to hose assembly continues to use a special O-ring. A new O-ring,
specifically for the 3/4" tube of an evaporator/condenser block fitting, has been released. The 1/2" tube of the evaporator/ condenser block fitting and the
3/8" tube of the condenser block fitting will continue to use the previous captured O-ring.
The torque specification for the evaporator block fitting bolt (1) has been revised to:
Evaporator Block Fitting Bolt (1), 17 N-m (12 ft.lbs.) Condenser Block Fitting Bolt (1), 12 N-m (9 ft.lbs.)
Replacement O-rings are available from GMWDD under the following part numbers:
TUBE O.D.
3/8"
1/2"
3/4"
CAPTURED
P/N
3053197
3053203
3053204
GR.#
9.242
9.196
9.196
STANDARD
P/N
6555088
3140600
6556521
GR.#
9.196
8.955
9.214
COMPRESSOR
PORTS
P/N
5887997
GR.#
9.226
BLOCK
FITTING
P/N
3053197
3053203
3090774
