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