31 00... Notes On Repairing Threads

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IMPORTANT: Install Helicoil thread inserts so that they are flush with the original thread.

NOTE: Damaged threads in engine carrier may be repaired with Helicoil thread inserts. Comply with the procedure described in the example.

Fig 1: Identifying Steel Spring Helicoil Thread

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Procedure:

Create a clean core hole; if necessary, drill out screw remnants

Fig 2: Identifying Core Hole
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Create locating thread for Helicoil thread insert

Fig 3: Identifying Thread For Helicoil Thread Insert
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Pick out Helicoil thread insert in accordance with the table and screw into the locating thread until flush with the original thread. See 41 00... NOTES ON REPAIRING THREADS

Fig 4: Identifying Helicoil Thread Insert In Accordance With Table & Screw
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Break drive pin and remove

Fig 5: Identifying Drive Pin
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