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Home >> GMC >> 2004 >> Jimmy 2D Utility, Part Time, Automatic >> Repair and Diagnosis (Single Page) >> General Information >> Identification >> General Information >> Introduction >> Thread Inserts >> Repair Procedure

Repair Procedure

  1. Determine the size, the pitch, and the depth of the damaged thread. If necessary, adjust the stop collars on the cutting tool and tap to the required depth.
  2. Drill out the damaged threads. Clean out any chips.
    Fig 1: Drilling & Tapping Damaged Threads
    GM4962Courtesy of GENERAL MOTORS CORP.
  3. Lubricate the tap with light engine oil. Tap the hole. Clean the threads.
    4. Fig 2: Installing Thread Insert
    GM4963Courtesy of GENERAL MOTORS CORP.
  4. Thread the thread insert onto the mandrel of the installer. Engage the tang of the insert onto the end of the mandrel.
    5. IMPORTANT: The insert should be flush to one turn below the surface.
  5. Lubricate the insert with light engine oil, except when installing in aluminum and install the insert.
  6. If the tang of the insert does not break off when backing out the installer, break the tang off with a drift.
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