Air cleaner and dump valve - diesel engine (MAINTENANCE)

MAINTENANCE

10-10

PROCEDURES

Spark plugs - V8 engine

Replace

Take great care when fitting spark plugs not 
to cross-thread plug, otherwise costly 
damage to cylinder head will result. It is 
essential that correct grade of spark plugs 
are fitted. Incorrect grade of spark plugs 
may lead to piston overheating and engine 
failure. Use only approved spark plugs, use 
of unapproved spark plugs may cause the 
misfire detection system to malfunction.

1. Disconnect battery earth lead.
2. Noting their fitted position, disconnect ht leads 

from spark plugs.

3. Remove 8 spark plugs.
4. Ensure that  gap of new spark plugs is 1.0  

±

0.05 mm (0.040 

±

 0.002 in).

Do not attempt to clean or adjust gaps. If a 
spark plug problem exists, try substituting 
defective spark plug(s) with new one(s).

CAUTION: Do not attempt to clean or adjust 
spark plug gaps.  If a spark plug problem 
exists, try substituting the defective spark 
plug with a new one.

5. Fit spark plugs and tighten to 20 Nm (15 lbf.ft).

6. Connect ht leads to spark plugs.
7. Connect battery earth lead.

Air cleaner - V8 engine

Replace

1. Replace air cleaner element.

 + 

 ENGINE MANAGEMENT SYSTEM - 

V8, REPAIRS, Element - air filter.

Clean

1. Clean the drain hole in filter casing.

Air cleaner and dump valve - diesel 
engine

Replace/clean 

1. Replace air cleaner element. 

 + 

 ENGINE MANAGEMENT SYSTEM - 

Td5, REPAIRS, Element - air filter.

2. Remove all dirt from dump valve.