Hummer H3. Manual — part 266

Use the following information when using RTV sealant:

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

The exhaust manifold

The head gasket

Any other surfaces where a different type of sealant is specified in the service
procedure

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

Use a plastic or wood scraper in order to remove all the RTV sealant from the components.

The surfaces to be sealed must be clean and dry.

Use a RTV sealant bead size as specified in the service procedure.

Apply the RTV sealant bead to the inside of any bolt holes areas.

Assemble the components while the RTV sealant is still wet to the touch. Do not wait for
the RTV sealant to skin over.

Tighten the fasteners in sequence (if specified) and to the proper torque specifications. DO
NOT overtighten the fasteners.

Anaerobic Type Threadlock Sealant

Anaerobic type threadlock sealant cures in the absence of air. This type of sealant is used for
threadlocking and sealing of bolts, fittings, nuts, and studs. This type of sealant cures only when
confined between 2 close fitting metal surfaces.

Use the following information when using threadlock sealant:

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

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

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

IMPORTANT: Do not allow the RTV sealant to enter any blind threaded

holes, as it may prevent the fasteners from clamping
properly or cause damage when the fastener is tightened.

IMPORTANT: Fasteners that are partially torqued and then the threadlock

2006 Hummer H3

2006 ENGINE Engine Mechanical - 3.5L (L52) - H3

Tighten the fasteners in sequence (if specified) and to the proper torque specifications. DO
NOT overtighten the fasteners.

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 1 sealing surface.

Tighten the fasteners in sequence (if specified) and to the proper torque specifications. DO
NOT overtighten the fasteners.

TOOLS AND EQUIPMENT

Work in a clean and well-lit area. Have the following components available before you begin to
work:

A suitable parts cleaning tank

sealant allowed to cure more than five minutes, may result in
incorrect clamp load of assembled components.

IMPORTANT: Do not allow the pipe sealant to enter any of the blind

threaded holes, as the pipe sealant may prevent the fastener
from clamping properly, or cause component damage when
the fastener is tightened.

2006 Hummer H3

2006 ENGINE Engine Mechanical - 3.5L (L52) - H3

A compressed air supply

Trays, in order to keep the parts and the fasteners organized

An adequate set of hand tools

An approved engine repair stand will prevent personal injury or damage to the engine
components. The special tools are designed in order to quickly and safely accomplish the
operations for which the tools are intended. Using the tools will minimize possible damage to the
engine components. Precision measuring tools are required for the inspection of certain critical
components. Torque wrenches are needed for the correct assembly of various parts.

SPECIAL TOOLS AND EQUIPMENT

SPECIAL TOOLS

Special Tools

Illustration

Tool Number/Description

EN 44217-45

Timing Chain Retention Tool

EN 45680-400

Cylinder Sleeve Removal and Installation Kit

2006 Hummer H3

2006 ENGINE Engine Mechanical - 3.5L (L52) - H3

EN 46547

Flywheel Holding Tool

EN 47701

Piston Ring Compressor

EN 47702

Bolt Extractor Kit

J 7872

Magnetic Base Indicator Set

2006 Hummer H3

2006 ENGINE Engine Mechanical - 3.5L (L52) - H3