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Fig. 603: Drilling & Tapping Damaged Threads 1. Determine the size, the pitch, and the depth of the damaged thread. CAUTION: Refer to SAFETY GLASSES CAUTION . IMPORTANT: Refer to the thread repair kit manufacturer's instructions regarding the size of the drill and which tap to use.
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
2. Adjust the stop collars on the cutting tool as needed. Tap the stop collars to the required depth. 3. Drill out the damaged thread. 4. Remove the chips. 5. Apply clean engine oil to the top thread. 6. Use the tap in order to cut new thread. 7. Clean the thread. Fig. 604: Installing Thread Insert 8. Screw the thread insert onto the mandrel of the thread insert installer. Engage the tang of the
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
thread insert onto the end of the mandrel. 9. Lubricate the thread insert with clean engine oil - except when installing in aluminum - and install the thread insert. 10. If the tang of the thread insert does not break off when backing out the thread insert installer, break off the tang using a drift punch. SERVICE PRIOR TO ASSEMBLY Dirt will cause premature wear of the rebuilt engine. Clean all the components. Use the proper tools to measure the components when checking for excessive wear. When the components are re-installed into an engine, return the components to the original During assembly, lubricate all the moving parts with clean engine oil, unless otherwise ENGINE BLOCK PLUG INSTALLATION Special Tools J 41712 Oil Pressure Switch Socket. See Special Tools. Installation IMPORTANT: The thread insert should be flush to 1 turn below the surface.
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
Fig. 605: Locating Oil Filter Bypass Valve 1. Install a NEW oil filter bypass valve. 1. Install the oil filter bypass valve into the oil gallery bore until slightly below flush with the surface of the engine block. 2. Using a pointed punch, stake the engine block area around the oil filter bypass valve. CAUTION: Refer to Safety Glasses Caution .
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
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