Isuzu KB P190. Manual - part 809

Fuel System – V6 

Page 6C – 34 

 

Fuel Tank Lines 

 

Figure 6C –  38 

Legend 

1 

Fuel Feed Line 

2 

Fuel Return Line 

3 

Fuel Vapour emission port 

4 

Fuel Pump and Sender Assembly 

5 

Connector; Fuel Pump and Sender 

6 Fuel 

Lines 

7 

Retainer Ring (Fuel Pump Lock) 

8 

“O” Ring Seal 

9 

Fuel Tank Assembly 

10 

Fuel Vapour Vent Line 

Reinstall 

 

Ensure the plastic fuel line clips are in good 
condition before proceeding. If not, replace 
the defective clips. 

Reinstallation of the stone guard and fuel lines is the reverse of the removal procedure, noting the following: 

1 

Tighten the Fuel line securing nut to the correct torque specification, refer to Figure 6C –  39. 

Fuel line securing nut 
torque specification .........................................8 – 12 Nm 

2 

Tighten the stone guard securing bolts to the correct torque specification. 

Stone guard securing bolt 
torque specification .....................................5.0 – 7.0 Nm 

Fuel System – V6 

Page 6C – 35 

 

Fuel Line Routing 

 

Figure 6C –  39 

Legend 

1 

Evaporative Emission Control 
Canister Purge Line 

2 

Fuel Feed Line 

3 

Fuel Line From Fuel Filter 

4 

Fuel Feed Line To Fuel Filter 

5 

Evaporative Line To Rollover Valve 

6 

Evaporative Line To Canister 

 

7 

Fuel Line Securing Nut 

8 Stone 

Guard 

9 

Side Stone Guard 

Fuel System – V6 

Page 6C – 36 

 

Bell Housing Fuel Lines 

1 

Remove the bolt (1) securing the fuel line bracket to 
the upper left-hand side of the bell housing, refer to 
7B1 Transmission. 

 

N O T E  

The left-hand front exhaust pipe may need to be 
moved aside to gain access to the fuel line 
retaining bracket bolt (1), refer to 6F Exhaust 
System – V6. 

 

Fuel line bracket bolt 
torque specification ...................................8.0 – 12.0 Nm 

Figure 6C –  40 

 

Engine Bay Fuel Lines 

1 

Remove the nut (5) from the fuel line bracket (4). 

2 

Unclip the fuel lines from the engine, refer to 4.1 Fuel 
Lines And Quick Connect Fittings. 

Figure 6C –  41 

Fuel System – V6 

Page 6C – 37 

 

4.10 Rollover 

Valve 

 

The fuel tank incorporates two rollover valves. The rollover 
valve limits vapour venting to the evaporative emission 
control canister using a fixed-sized orifice that is normally 
open (View A). If the vehicle rolls over (View B), the fuel 
tank vent line to the evaporative emission control canister is 
safely shut off by the rollover valve, preventing liquid fuel 
from flooding the evaporative emission control canister. 

 

N O T E  

The rollover valve is welded to the top of the fuel 
tank and is not a serviceable item. If the rollover 
valve becomes unserviceable, the fuel tank must 
be replaced, refer to 4.4 

Fuel Tank. 

Figure 6C –  42