Full Size Chevrolet V8-350 5.7L DSL (1984)
Compressor Shaft Seal: Technical Service Bulletins
A/C Compressor Shaft Seal - Usage
Number:
84-83
Section:
1A (Ia)
Date:
Oct., 1984
Subject:
A/C COMPRESSOR SHAFT SEAL USAGE
Model and Year:
1983-84 ALL PASSENGER VEHICLES
TO:
ALL CHEVROLET DEALERS
This cancels and replaces Chevrolet Dealer Service Bulletin 84-83 dated March, 1984 which should be destroyed.
A new A/C compressor shaft seal has been implemented on all R-4 and DA-6 A/C compressors during the 1984 model year. A new one-piece lip seal
has replaced the two-piece ceramic carbon seal. The lip seal is a quality improvement and is anticipated to improve shaft seal field performance.
Inspection and shaft seal service must be made as follows:
^
DA-6 compressor originally produced with two-piece ceramic carbon seal must be serviced with a two-piece seal (P/N 2724280).
^
DA-6 compressors produced with the one-piece lip seal must be serviced with a one-piece seal (P/N 2724319).
^
R-4 compressors originally produced with the two-piece ceramic carbon seal must be serviced with a two-piece seal (P/N 12301828) for proper
shaft seal function.
^
R-4 compressors originally produced with the one-piece lip seal may be serviced with either a one-piece seal (P/N 2724319) or the two-piece seal
(P/N 12301828).
