Isuzu KB P190. Manual - part 682

Engine Mechanical – V6 

Page 6A1–249 

 

N O T E  

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

10 

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

Figure 6A1 – 474 

11 

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

 

Figure 6A1 – 475 

12 

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

Figure 6A1 – 476 

Engine Mechanical – V6 

Page 6A1–250 

 

13 

Install the insert (2) into the tapped hole by hand only.

 

Figure 6A1 – 477 

CAUTION

 

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

14 

Install the insert until the flange (2) of the insert 
contacts the counter bore surface. 

Figure 6A1 – 478 

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. 

15 

Continue to rotate the driver installation tool (1) 
through the insert (2) 

16 

Remove the driver installation tool. 

Figure 6A1 – 479 

Engine Mechanical – V6 

Page 6A1–251 

 

17 

Inspect the insert for correct installation into the 
tapped hole. A correctly installed insert (1) will be 
either flush or slightly below flush with the surface of 
the base material (2). 

Figure 6A1 – 480 

18 

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 swarf 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. 

Figure 6A1 – 481 

Main Bearing Cap Bolt Hole Thread Repair 

The crankshaft main bearing bolt hole thread repair tools 
are in Tool No. J 42385-2000 and J 42385-700 which 
consist of the following: 
• 

Drill (1) for outboard holes J 42385-702 

• 

Tap (2) for outboard holes J 42385-703 

• 

Installation driver (3) for outboard holes J 42385-704

• 

Bushing (4) for outboard holes J 42385-726 

• 

Alignment pin (5) for outboard holes J 42385-727 

• 

Bolts (6) for outboard holes J 42385-728 

• 

Drill (7) for inboard holes J 42385-720 

• 

Tap (8) for inboard holes J 42385-721 

• 

Installation driver (9) for inboard holes J 42385-722 

• 

Bushing (10) J 42385-713 

• 

Alignment pin (11) J 42385-308 

• 

Bolts (12) J 42385-734 

• 

Fixture plate (13) J 42385-712 

Figure 6A1 – 482 

Engine Mechanical – V6 

Page 6A1–252 

 

N O T E  

•  Ensure the fixture plate is installed during the 

machining and installation processes of the 
insert. 

•  The use of a cutting type fluid such as 

WD 40® or equivalent is recommended when 
performing the drilling, counter boring and 
tapping procedures. 

•  When installed to the correct depth, the flange 

of the insert will be seated against the counter 
bore of the drilled/tapped hole. 

1 

Position the fixture plate (3) with the bushing (2) 
installed over the crankshaft main cap bolt hole to be 
repaired. 

2 

Loosely install the fixture plate bolts (1) into the 
remaining crankshaft main cap bolt holes. 

Figure 6A1 – 483 

3 

Position the alignment pin (1) through the bushing 
and into the crankshaft main cap bolt hole. 

4 

With the alignment pin in the desired crankshaft main 
cap bolt hole, tighten the fixture retaining bolts (2). 

5 

Remove the alignment pin. 

Figure 6A1 – 484