C 1500 1/2 Ton Pickup 2WD V8-305 5.0L VIN H 4-bbl (1982)
Technical Service Bulletin # 82T144
Date: 830601
Dual Bed Cat Converters - Revised Repair Procedure
Number:
82-T-144
Section:
VIII
Date:
June, 1983
Subject:
REPAIR PROCEDURE FOR DUAL BED BEAD CATALYTIC CONVERTERS - ALL 1981-82 VEHICLES EQUIPPED WITH DUAL
BED BEAD CATALYTIC CONVERTERS
TO:
ALL CHEVROLET DEALERS
This bulletin supercedes bulletin 81-T-76, 81-T-76 Supplement and 82-T-58.
A new repair procedure has been developed for servicing dual bed bead catalytic converters. The procedure consist of transferring the catalyst beads
from plugged or externally damaged (not internally damaged or expanded) dual bed converters to an empty new design dual bed bead converter. Also,
some new upper bed catalyst beads must be added to the upper bed of the new converter.
Used beads from expanded or internally damaged converters cannot be used in the new empty converter. Either "stored" upper and lower bed beads or
upper and lower bed bead kits must be use in conjunction with the rebuild kit.
Subject vehicles that had the original dual bed converter replaced with a single bed converter or 1982 vehicles produced with the single bed converter
(built after April 17, 1982) must be serviced with another single bed converter of the same part number.
Vehicles involved in this program are listed below:
Carline
Engines
1981 Model Year
Chevrolet ("B") Camaro, Malibu, Monte Carlo, and
El Camino
3.8L (229), 4.4L, 5.0L
Chevrolet ("B") Camaro,
Corvette and Malibu
5.7L
1982 Model Year
Chevrolet ("B"), Malibu,
Monte Carlo and El Camino
3.8L (229), 4.4L, 5.0L
Chevrolet ("B")
5.7L
Camaro
5.0L (LG4)
Inspection Procedure
1.
Raise vehicle on hoist.
2.
Refer to Figure 1 for location of catalytic converter part number.
3.
If converter part number is listed in Column 1 of table below, replace converter with the appropriate converter part number identified in Column 2.
Column 1
Column 2
Original Dual
New Dual Bed
Model Year Vehicle
Bed Bead Conv.
Bead Conv.
1981 "A", "Aspl", and "B" (including Police)
1982 "B", "G" and
8999586
"Gspl" (including Police)
25056366 (1982 Police)
25056673
1981 "F" (non-Z28)
8999588
25056674
1981 "F" (Z28)
8999589
25056675