Spark Plug - Torque Revision
9223buick04
Bulletin:
91-6-2
Date:
Nov. '90
Ref. No.:
91-045-6
Corp. Ref. No.:
036107
SUBJECT:
SERVICE MANUAL UPDATE - SECTION 6A - SPARK PLUG TORQUE SPEC.
(CHANGED SPECIFICATION)
MODELS AFFECTED:
1989-91 REGAL WITH 3.1L ENGINE (VIN CODE T)
SERVICE MANUAL UPDATE - SECTION 6A
When installing spark plugs in the 3.1L engine (VIN Code T) use the following revised specification in the Service Manuals listed below:
Cast Iron or Aluminum Heads, 15 N-m (11 lbs.ft.)
1991 Regal Pages 6D4 - 4, 5, 7
1990 Regal Pages 6D4 - 3, 4, 5
1989 Regal Pages 6D4 - 4, 7