For 1990-2009 cars

# A/C COMPRESSOR SHAFT SEAL INFORMATION

#### MODELS AFFECTED: 1983 DEVILLE AND BROUGHAM 1984 DEVILLE, BROUGHAM, ELDORADO, SEVILLE AND CIMARRON 1985 FWD DEVILLE AND FLEETWOOD

This bulletin supersedes Serviceman Bulletin #T-84-6, Group 1, #16, October 1983, which should be destroyed.

The new one-piece Teflon single lip compressor shaft seal (Figure 1) used in production on most DA-6 compressors and some R4 compressors replaces the earlier two-piece ceramic/carbon shaft seal (Figure 2).

The one-piece Teflon single lip seal is now available in service kit, P/N 2724319. If shaft seal replacement is required, the following service parts usage must be observed.

COMPRESSOR IF ORIGINAL REPLACE USING TYPE SEAL WAS: SEAL KIT: ----- ---------- --------- One Piece (Teflon ) P/N 2724319 (One Piece) DA-6 Two Piece (Ceramic/Carbon) P/N 2724280 (Two Piece)

One Piece (Teflon ) Either P/N 2724319 (One Piece) R4 or P/N 9956695 (Two Piece) Two Piece (Ceramic/Carbon) P/N 9956695(TwoPiece)

Service Precaution

When installing a Teflon lip shaft seal, care should be taken to prevent damage to the lip of the one-piece seal. Make sure that seal lip is free of lint and dirt that could damage seal surface or prevent sealing. Also be sure that the seal protector (tool J-23128-A) has not been nicked or damaged in any way before use.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.