Ignition - Spark Plug Application & Gap

Bulletin 85-6D-5

Date May '85

Ref.. No. 85-116-6D
SUBJECT: SPARK PLUG AND GAP INFORMATION

MODELS AFFECTED: ALL 1981 THRU 1985 BUICKS


Listed below are the spark plugs and gap information for all engine applications used in 1981 thru 1985 Buicks.

A.C. PLUG EIECTRODE
YEAR ENGINE VIN CODE TYPE GAP

1981 Pont. 2.5L 5 R44TSX .060"
Chev. 2.8L X *R43CTS .045"
Buick 3.8L A R45TS8 .080"
Buick 3.8L Turbo 3 R45TS .040"
Buick 4.1L 4 R45TS8 .080"
Pont. 4.3L S R45TSX .060"
Olds. 5.0L Y *R46SX .080"

1982 Pont. 1.8L O *R44XLS .035"
Chev. 1.8L G *R42CTS .035"
Pont. 2.5L R R44TSX .060"
Chev. 2.8L Z *R42CTS .045"
Chev. 2.8L X *R43CTS .045"
Buick 3.0L E R44TS8 .080"
Buick 3.8L A R45TS8 .080"
Buick 3.8L Turbo 3 R45TSX .060"
Buick 4.1L 4 R45TS8 .080"
Olds. 5.0L Y R46SX .080"

1983 Pont. 1.8L O *R44XLS .035"
Chev. 2.0L P R42CTS .035"
Pont. 2.5L R *R44TSX .060"
Chev. 2.8L X R43CTS .045"
Chev. 2.8L Z R42CTS .045"
Buick 3.0L E R44TSX .060"
Buick 3.8L A R45TS8 .080"
Buick 3.8L Turbo 8 R45TSX .060"
Buick 4.1L 4 R45TS8 .080"
Olds. 5.0L Y R46SX .080"
1984 Pont. 1.8L O R44XLS .035"
Pont. 1.8L J R42CXLS .035"
Chev. 2.0L P R42CTS .035"
Pont. 2.5L R *R43TSX .060"
Chev. 2.8L X R43CTS .045"
Chev. 2.8L Z R42CTS .045"
Buick 3.0L E R44TSX .060"
Buick 3.8L (Carb.) A R45TSX .060"
Buick 3.8L (MFI) 3 R44TS8 .080"
Buick 3.8L Turbo 9 R44TS .045"
Buick 4.1L 4 R45TSX .060"
Olds. 5.0L Y R46SX .080"

1985 Pont. 1.8L O R44XLS .035"
Pont. 1.8L J R42CXLS .035"
Chev. 2.0L P R42CTS .035"
Pont. 2.5L R,U R43TSX .060"
Chev. 2.8L (Carb) X R43CTS .045"
Chev. 2.8L (MFI) W R42CTS .045"
Buick 3.0L (MFI) L R44LTS .040"
Buick 3.0L (Carb) E R44TSX .060"
Buick 3.8L (MFI) 3 R44TS8 .080"
Buick 3.8L (Carb.) A R45TSX .060"
Buick 3.8L Turbo 9 R44TS .045"
Olds. 5.0L Y FR3LS6 .060"


* Revised from original specifications.