Chevrolet Silverado / GMC Sierra. Service manual — part 220

container.

The threaded surfaces to be sealed must be clean and dry.

Apply the threadlock sealant as specified on the threadlock sealant container.

Tighten the fasteners in sequence, if specified, and to the proper torque specifications.

Anaerobic Type Pipe Sealant

Anaerobic type pipe sealant cures in the absence of air and remains pliable when cured. This type
of sealant is used where 2 parts are assembled together and require a leak proof joint.

Use the following information when using pipe sealant:

Do not use pipe sealant in areas where extreme temperatures are expected. These areas
include:

The exhaust manifold

The head gasket

Surfaces where a different sealant is specified

Always follow all the safety recommendations and the directions that are on the pipe sealant
container.

The surfaces to be sealed must be clean and dry.

Use a pipe sealant bead of the size or quantity as specified in the service procedure.

Apply the pipe sealant bead to the inside of any bolt hole areas.

Apply a continuous bead of pipe sealant to one sealing surface.

IMPORTANT:

Fasteners that are partially torqued and then the
threadlock sealant allowed to cure more than 5 minutes,
may result in incorrect clamp load of assembled
components.

Do not overtighten the fasteners.

NOTE:

Do not allow the sealant to enter a blind hole. The sealant may
prevent the fastener from achieving proper clamp load, cause
component damage when the fastener is tightened, or lead to
component failure.

IMPORTANT: Do not overtighten the fasteners.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Tighten the fasteners in sequence, if specified, and to the proper torque specifications.

TOOLS AND EQUIPMENT

Special tools are listed and illustrated throughout this section with a complete listing at the end of
the section. The tools (or the equivalents) are specially designed to quickly and safely accomplish
the operations for which the tools are intended. The use of special tools will also minimize
possible damage to engine components. Some precision measuring tools are required for
inspection of certain critical components. Torque wrenches and a torque angle meter are
necessary for the proper tightening of various fasteners.

To properly service the engine assembly, the following items should be readily available:

Approved eye protection and safety gloves

A clean, well-lit, work area

A suitable parts cleaning tank

A compressed air supply

Trays or storage containers to keep parts and fasteners organized

An adequate set of hand tools

Approved engine repair stand

An approved engine lifting device that will adequately support the weight of the
components

SPECIAL TOOLS AND EQUIPMENT

SPECIAL TOOLS

Illustration

Tool Number/ Description

GE-48326

Sealant Dispenser

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

J 3049-A

Valve Lifter Remover

J 5239

Connecting Rod Bolt Guide Set

J 5590

Pinion Bearing Race Installer - Rear

J 5825-A

Crankshaft Gear Remover

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

J 5830-02

Valve Guide Reamer Set

J 5892-D

Valve Spring Compressor

J 7872

Magnetic Base Dial Indicator

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado