Installation Procedure 2

WARNING: This page is about a different variant/trim than selected.

Fig 1: View Of Crankshaft Balancer Alignment Mark & Engine Front Cover Alignment Tab

Courtesy of GENERAL MOTORS COMPANY

IMPORTANT:

Rotate the number 1 cylinder to top dead center (TDC) of the compression stroke. The engine front cover has 2 alignment tabs and the crankshaft balancer has 2 alignment marks (spaced 90 degrees apart) which are used for positioning number 1 piston at top dead center (TDC). With the piston on the compression stroke and at top dead center, the crankshaft balancer alignment mark (1) must align with the engine front cover tab (2) and the crankshaft balancer alignment mark (4) must align with the engine front cover tab (3).

Rotate the crankshaft balancer clockwise until the alignment marks on the crankshaft balancer are aligned with the tabs on the engine front cover and the number 1 piston is at top dead center of the compression stroke.

Fig 2: View Of Gear Pre-drilled Indent Hole & Rotor Segment

Courtesy of GENERAL MOTORS COMPANY

Align white paint mark on the bottom stem of the distributor, and the pre-drilled indent hole in the bottom of the gear (3).

IMPORTANT:

The ignition system distributor driven gear and rotor may be installed in multiple positions. In order to avoid mistakes, mark the distributor on the following components in order to ensure the same mounting position upon reassembly:

The distributor driven gear
The distributor shaft
The rotor holes

Installing the driven gear 180 degrees out of alignment, or locating the rotor in the wrong holes, will cause a no-start condition. Premature engine wear or damage may result.

With the gear in this position, the rotor segment should be positioned as shown for a V6 engine.

Fig 3: View Of Distributor

Courtesy of GENERAL MOTORS COMPANY

Using a long screw driver, align the oil pump drive shaft to the drive tab of the distributor.
Guide the distributor into the engine.
Ensure that the spark plug towers are perpendicular to the centerline of the engine.

Fig 4: View Of Rotor Segment Aligned With Pointer Cast In Distributor Base

Courtesy of GENERAL MOTORS COMPANY

Once the distributor is fully seated, the rotor segment should be aligned with the pointer cast into the distributor base.
- This pointer may have a 6 cast into it, indicating that the distributor is to be used on a 6 cylinder engine or a 8 cast into it, indicating that the distributor is to be used on a 8 cylinder engine.
- If the rotor segment does not come within a few degrees of the pointer, the gear mesh between the distributor and the camshaft may be off a tooth or more.
- If this is the case, repeat the procedure again in order to achieve proper alignment.

Fig 5: View Of Distributor Hold Down Bolt

Courtesy of GENERAL MOTORS COMPANY

Refer to FASTENER NOTICE in Cautions and Notices.
Install the distributor mounting clamp bolt.

Tighten

Tighten the distributor clamp bolt to 25 N.m (18 lb ft).

Fig 6: View Of Distributor Cap

Courtesy of GENERAL MOTORS COMPANY

Install the distributor cap.
Install two new distributor cap screws.
Tighten

Tighten the screws to 2.4 N.m (21 lb in).
Install the electrical connector to the distributor.
Install the spark plug wires to the distributor cap.

Fig 7: View Of Ignition Coil Wire Harness

Courtesy of GENERAL MOTORS COMPANY

Install the ignition coil wire.
Note the correct orientation of the wire boot.

IMPORTANT:

If the MIL is turned ON after installing the distributor, and a DTC P1345 is found, the distributor has been installed incorrectly.

Repeat Installation Procedure 2 if MIL is turned ON after installing the distributor.