Spark Plugs

SPARK PLUG TYPE

Application	AC
All Models	R45XLS

SPARK PLUG SPECIFICATIONS

Application	Gap In. (mm)	Torque Ft. Lbs. (N.m)
All Models	.045 (1.1)	15 (20)

Fig 1: Firing Order & Distributor Rotation

BASE IGNITION TIMING (Degrees BTDC @ RPM)

Application

Specification

1.6L ⁽¹⁾

⁽²⁾⁽³⁾⁽⁴⁾ 8 @ Idle

2.0L ⁽¹⁾

⁽²⁾⁽³⁾ 8 @ Idle

⁽¹⁾	Ground ALDL test connector.

⁽²⁾	Align timing marks to obtain specified degrees.

⁽³⁾	Idle speed as specified on emission decal.

⁽⁴⁾	If using the magnetic pick-up timing light, set timing to 10 degrees BTDC. See Fig 2 .

NOTE: A magnetic pick-up timing light may be used on 1.6L engine.

Fig 2: Timing Mark & Magnetic Pick-Up (Probe) Locations

Courtesy of GENERAL MOTORS CORP.