1D-228 Engine Mechanical:
NOTE
• During the tapping process, it is necessary
to repeatedly remove the tap and clean
chips from the hole and the flutes of the
tap.
• Ensure the tap has created full threads at
least to the depth equal to the insert
length.
4. Using a suitable tapping wrench, tap the threads of
the drilled hole by hand only.
NOTE
All chips must be removed from the tapped
hole prior to insert installation.
5. Using compressed air, clean out any chips.
6. Spray cleaner GM P/N 12346139, GM P/N
12377981 (Canadian P/N 10953463) or equivalent
into the tapped hole.
NOTE
All chips must be removed from the tapped
hole prior to insert installation.
7. Using compressed air, clean out any chips.