Chevrolet Silverado / GMC Sierra. Manual - part 138
1. Remove the piston rings from the pistons.
Fig. 463: Pressing Piston Pin From Connecting Rod Using J 24086-C
Courtesy of GENERAL MOTORS CORP.
2. Press the piston pin from the connecting rod using the J 24086-C . See Special Tools.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
The piston pin has an interference fit into the connecting rod, and is full floating in the
piston.
Fig. 464: Piston & Connecting Rod Components
Courtesy of GENERAL MOTORS CORP.
3. Mark, separate, and organize the parts for assembly.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
PISTON, CONNECTING ROD, AND BEARING CLEANING AND INSPECTION
Fig. 465: Piston & Connecting Rod Components
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: Measurement of all components should be taken with the
components at room temperature.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
1. Clean the piston and connecting rod in solvent.
2. Dry the components with compressed air.
Do not use a wire brush in order to clean any part of the
piston.
CAUTION: Refer to SAFETY GLASSES CAUTION .
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado