Isuzu KB P190. Manual - part 665

Engine Mechanical – V6 

Page 6A1–181 

 

3.23  Engine Mounts and Brackets 

Remove 

1 

Remove the exhaust manifold assembly from the side of the engine where the engine mount is to be removed, 

refer to 3.11 

Exhaust Manifold Assembly. 

2 

Fit the engine lift brackets, Tool No. EN-46114 (1) to 
the cylinder heads. 

CAUTION

 

Only lift the engine far enough to take the 
weight off the engine mount, or damage to 
the mount and lifting equipment failure may 
occur. 

3 

Using an engine lifting crane, raise the side of the 
engine where the mount is to be removed enough to 
remove the weight from the engine mounts, and 
create a slight tension in the lifting equipment. 

 

Figure 6A1 – 314 

4 

Remove the left-hand or right-hand side engine 
mount and bracket as required. 

 

Figure 6A1 – 315 

Engine Mechanical – V6 

Page 6A1–182 

 

Engine Mount Location 

 

Figure 6A1 – 316 

Inspect 

N O T E  

Although the following procedure provides 
information regarding on-vehicle engine mount 
inspections, it is preferable to inspect the engine 
mounts once removed from the vehicle. 

1 

Fit the engine lift brackets, Tool No. EN-4611 to the cylinder heads. 

 

Only lift the engine enough to take the weight 
off the engine mounts, or damage to the 
mounts and lifting equipment failure may 
occur. 

2 

Using a commercially available engine lifting crane, have an assistant raise the engine far enough to remove the 
weight on the engine mounts and create a slight tension in the rubber. 

3 

Observe the engine mount while raising the engine. 

 

4 

Replace the engine mount if any of the following conditions are found: 

Engine Mechanical – V6 

Page 6A1–183 

 

• 

The hard rubber surface is covered with heat check cracks, 

• 

The rubber is split through the centre of the engine mount, or 

• 

The rubber is separated from the metal plate portion of the engine mount. 

 

5 

Remove the engine lift brackets, Tool No. EN-46114 from the engine. 

Reinstall 

The reinstallation procedure for the engine mounts is the reverse of the removal procedure, noting the following: 

 

Ensure all fasteners are tightened to the correct torque specification. 

 

 

Engine mount bracket to 
cylinder block attaching bolt 
torque specification 

................................................................43.0 – 57.0 Nm 

Engine mount to bracket attaching nut 
torque specification 

................................................................70.0 – 90.0 Nm 

Engine mount to frame attaching nut 
torque specification 

................................................................44.0 – 60.0 Nm 

 

 

 

Engine Mechanical – V6 

Page 6A1–184 

 

4 

Major Service Operations 

A T T E N T I O N  

The V6 engine is a combination of numerous components, containing machined, honed, polished and lapped 
surfaces manufactured on the latest, high technology production equipment. Many of the components 
contain tolerances measured in thousandths of a millimetre. Consequently, when any engine component is to 
be serviced, care and cleanliness are extremely important. 

Prior to re-assembly of the V6 engine, all components must be cleaned and inspected in accordance with the 
relevant procedures throughout this section, and replaced or repaired where required. 

In addition to cleaning and inspecting components, a liberal coating of engine oil should be applied to friction 
surfaces during assembly to protect and lubricate the surfaces on initial operation. 

When performing any service operation contained in this Section, it should be understood that correct 
cleaning and protection of machined surfaces and friction areas is part of the repair procedure. This is 
considered standard workshop practice, even if not specifically stated. Torque values must be used as 
specified during reassembly to ensure correct retention of all components. 

Through out this section, fastener torque wrench specifications may be accompanied with the following 
identification marks: 

■ 

Fasteners must be replaced after loosening. 







 

Fasteners either have micro encapsulated sealant applied or incorporate a mechanical thread lock and 
should only be re-used once. If in doubt, replacement is recommended. 

 

If one of these identification marks is present alongside a fastener torque wrench specification, the 
recommendation regarding that fastener must be adhered to. 

4.1 Engine 

Removal 

CAUTION

 

•  Allow the engine to cool to at least 50°°°° C, 

before attempting fastener removal. 

•  As aluminium has a greater rate of thermal 

expansion than that of cast iron, 
aluminium bolt hole threads will change 
dimension to a larger extent than cast iron 
bolt threads. 

•  If a bolt or other threaded component is 

removed before the engine is allowed to 
cool to at least 50

°°°° C, threads could be 

pulled from the cylinder block or cylinder 
head. 

•  Do not use impact tools to remove bolts 

during engine disassembly. While this may 
be common practice with cast iron engine 
components, use of these tools is likely to 
pull the aluminium threads in the cylinder 
block or head of this engine.