Exhaust Camshaft Installation

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

Courtesy of GENERAL MOTORS COMPANY

NOTE:
Used hydraulic valve lash adjuster arms must be returned to the original position on the camshaft. If the camshaft is being replaced, the lash adjuster arms actuated by the camshaft must also be replaced.

Hydraulic Valve Lash Adjuster (2) - Lubricate [6x] - Adhesives, Fluids, Lubricants, and Sealers
Hydraulic Valve Lash Adjuster (2) - Install [6x]
Hydraulic Valve Lash Adjuster Arm (1) - Lubricate [6x] - Adhesives, Fluids, Lubricants, and Sealers
Hydraulic Valve Lash Adjuster Arm (1) - Install [6x]
Courtesy of GENERAL MOTORS COMPANY

Exhaust Camshaft (4) - Lubricate - Adhesives, Fluids, Lubricants, and Sealers
Exhaust Camshaft (4) - Install
Camshaft Bearing Cap (1) - Lubricate [3x] - Adhesives, Fluids, Lubricants, and Sealers

NOTE:

Ensure that the caps are installed in their original location and position.

Camshaft Bearing Cap (1) - Install [3x]
Camshaft Bearing Front Cap (3) - Lubricate - Adhesives, Fluids, Lubricants, and Sealers
Camshaft Bearing Front Cap (3) - Install
Camshaft Bearing Cap Bolt (2) - Loosely install [8x]
Fig 1: Identifying Exhaust Camshaft Bearing Cap Bolts With Tightening Sequence
Courtesy of GENERAL MOTORS COMPANY

CAUTION:
Fastener Caution

Camshaft Bearing Cap Bolt (1) - Tighten in sequence [8x]
1. First Pass: 8 N.m (71 lb in)
2. Second Pass: Loosen 180 degrees
3. Third Pass: 12 N.m (106 lb in)
4. Final Pass: 12 N.m (106 lb in)