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Home >> Buick >> 1987 >> Electra Base >> Repair and Diagnosis >> Engine Performance >> Adjustment >> Tune-Up - V6 >> Testing >> Spark Plugs

Spark Plugs

SPARK PLUG TYPE

Application AC No.
2.8L MFI (VIN W) R43LTSE
2.8L MFI (VIN S, & 9) R42CTS
3.0L MFI (VIN L) R44LTS
3.8L 2-Bbl. (VIN A) R45TSX
3.8L SFI (VIN 3) R44LTS
3.8L SFI (VIN 7) R44TS or R44TSH
4.3L TBI (VIN Z) R45TS
SPARK PLUG INSTALLATION

Application Gap In. (mm) Torque Ft. Lbs. (N.m)
2.8L MFI .045 (1.14) 15 (20)
3.0L MFI .045 (1.14) 15 (20)
3.8L 2-Bbl. .060 (1.52) 15 (20)
3.8L SFI (VIN 3) .045 (1.14) 15 (20)
3.8L SFI (VIN 7) .035 (.90) 22 (30)
4.3L TBI .035 (.90) 15 (20)