Fig. 5: Removing Damaged Threads
Courtesy of GENERAL MOTORS CORP.
5. Using a tap wrench (2), tap the threads of the drilled hole.
z
M6 inserts require a minimum tap depth of 15 mm (0.59 in).
z
M8 inserts require a minimum tap depth of 20 mm (0.79 in).
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M10 inserts require a minimum tap depth of 23.5 mm (0.93 in).
6. Using compressed air, clean out any chips.
7. Spray cleaner GM P/N 12346139 (Canadian P/N 10953463), GM P/N 12377981 (Canadian P/N
10953463) or equivalent into the hole.
8. Using compressed air, clean any cutting oil and chips out of the hole.
2004 Chevrolet Corvette
2004 ENGINE PERFORMANCE Engine Mechanical (Repair Instructions 3 Of 3) - 5.7L - Corvette
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