Isuzu KB P190. Manual — part 685

Engine Mechanical – V6

Page 6A1–261

N O T E

All swarf must be removed from the tapped hole
prior to insert installation.

Safety glasses must be worn when using
compressed air.

13

Using compressed air, clean out any swarf.

Figure 6A1 – 508

N O T E

Do not allow oil or other foreign material to
contact the outside diameter (OD) of the insert.

14

Lubricate the threads of the driver installation tool (2)
with the driver oil (1).

Figure 6A1 – 509

15

Install the insert (2) onto the driver installation tool (1).

Figure 6A1 – 510

Engine Mechanical – V6

Page 6A1–262

16

Apply thread lock sealant (1) such as Loctite 277® or
equivalent to the insert OD threads (2).

Figure 6A1 – 511

17

Install the insert and installation driver (1) into the
tapped hole by hand only.

18

Start the insert into the threaded hole.

CAUTION

If the insert will not thread down until the
flange contacts the counter-bored surface,
remove the insert immediately with a screw
extracting tool and inspect the tapped hole
for any remaining swarf and/or incorrect
tapping.

19

Install the insert until the flange of the insert contacts
the counter-bored surface.

N O T E

The driver installation tool will tighten up before
cutting 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.

20

Continue to rotate the driver installation tool through
the insert.

Figure 6A1 – 512

21

In order to completely form the new threads in the
insert, rotate the driver installation tool through the
insert until the mark on the driver installation tool (1)
aligns with the surface of the engine block deck (2).

22

Inspect the insert for correct installation into the
tapped hole.

Figure 6A1 – 513

Engine Mechanical – V6

Page 6A1–263

4.9

Thread Repair Specifications

Left-hand Cylinder Head Camshaft Cover Face

Figure 6A1 – 514

Legend

Hole

Tool Number J 42385

Max. Depth in mm

Number Thread

Size Drill

Counter-

bore

Tap Driver

Insert Drill

Tap

1

M6 x 1.0

201

202

203

204

205

22.5

18.0

2

M6 x 1.0

201

202

203

204

205

Thru

Thru

3

M6 x 1.0

701

n/a

203

204

205

28.5

24.0

4

M20 x 1.5

715

716

717

718

719

25.0

17.0

Engine Mechanical – V6

Page 6A1–264

Left-hand Cylinder Head Front Face

Figure 6A1 – 515

Legend

Hole

Tool Number J 42385

Max. Depth in mm

Number Thread

Size Drill

Counter-

bore

Tap Driver

Insert Drill

Tap

1

M8 x 1.25

206

207

208

209

210

Thru

Thru

2

M12 x 1.75

856

857

858

859

416

40.0

32.5

3

M8 x 1.25

206

207

208

209

210

22.5

18.0