Skyhawk L4-121 2.0L VIN K TBI (1987)
Spark Plug: All Technical Service Bulletins
Spark Plug Recess - Debris Retention
Bulletin 87-6D-3
Date Nov., '86
Ref. No. 87-027-6D
SUBJECT:
SPARK PLUG RECESS DEBRIS RETENTION
MODELS AFFECTED: ALL 1987 SKYHAWKS
Contamination in the spark plug recess is not a new concern for any engine. However, for engines with aluminum heads, this collected debris could cause
spark plug hole thread damage.
A continued good service practice of dirt removal for these engines, as well as others, during spark plug removal and installation, should be maintained.
This "extra care" will lessen any unnecessary follow-up engine repairs and hence help eliminate dissatisfied customers.
This bulletin is for information only.
