Suzuki XL7 2007 Service Manual page 570

1D-230 Engine Mechanical:
NOTE
If the insert will not thread down until the
flange contacts the counterbored surface
remove the insert immediately with a screw
extracting tool and inspect the tapped hole
for any remaining chips and/or improper
tapping.
12. Install the insert until the flange (2) of the insert
contacts the counterbored surface.
NOTE
The driver installation tool will tighten up
before screwing completely through the
insert. This is acceptable. The threads at the
bottom of the insert are being formed and the
insert is mechanically locking the insert into
the base material threads.
13. Continue to rotate the driver installation tool (1)
through the insert (2).
14. Inspect the insert (1) for proper installation (2) into
the tapped hole.
15. Any installed insert that restricts or blocks an oil or
engine coolant passage (3) will need to have the oil
or engine coolant passage drilled out (4) to the
original size of the oil or engine coolant passage.
After drilling the restriction or blockage, clean out
any chips and thread the installation driver tool
through the insert again to remove any burrs caused
by the drilling of the oil or engine coolant passage.