Fleetwood Brougham V8-252 4.1L (1985)
Hose/Line HVAC: Technical Service Bulletins
A/C System - Revised Torque Spec & New O-Rings
Bulletin No. T 85-46A File in Group 1
Number
22
Corp. Ref. No. 805 0419
Date
Jul '85
SUBJECT:
A/C SYSTEM REPLACEMENT O-RINGS
MODELS AFFECTED: 1984 CIMARRON 1985 BROUGHAM, FLEETWOOD, DEVILLE, ELDORADO, SEVILLE AND CIMARRON
This bulletin supersedes Serviceman Bulletin T-85-46, Group 1, which should be destroyed.
O-RINGS
EVAPORATOR BLOCK FITTING
All 1985 Cadillacs and the 1984 Cimarron use "captured"-type O-rings at refrigerant hose and tube connections. All other past model Cadillacs 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/condensor 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