EXPERTEC TSB (84-83)
Publication date: 1984-02-15Reference number: 84-83
EXPERTEC TSB
TECHNICAL SERVICE BULLETIN
Reference Number(s): 84-83, Date of Issue:
02/15/84
A/C COMPRESSOR SHAFT SEAL INFORMATION
Model(s): 1983-84 Chevrolet Passenger Vehicles
Bulletin No.: Chevrolet 84-83
Date: 02/15/1984
BULLETIN ILLUSTRATION LIST
SERVICE INFORMATION
This cancels and replaces Chevrolet Dealer Service Bulletin 84-83 dated March, 1984 which should be destroyed.
PARTS INFORMATION
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
- 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).