Isuzu engine C22NE / 22LE / 20LE. Manual - part 33

ENGINE FUEL  6C-11

6.Disconnect air breather hose (3) and fuel filler hose (4) at

the fuel filler neck.

NOTE: Cover fuel hose to prevent any dust entering.

7.Remove the four fuel tank assembly fixing bolts at four

corners of the tank.

8.Let down the tank and disconnect the wiring connectors and

the emission hose at the emission port on the fuel pump

and sending assembly (5).

9.Remove fuel tank assembly along with protectors.

10.Remove roll over&float valve (1) along with the evaporative

fuel hose and pipe (2).

11.Remove fuel pump and sender assembly (5) by removing

the snap ring along with the fuel hoses (7, 8).

12.Remove tank protector by removing the fixing bolts.

Installation

1.Install protectors and tighten the fixing bolts to the specified

torque.

Torque; 68 N

⋅

m (6.9 kgf.m)

2.Install fuel pump and sender assembly by fitting in the snap

ring.

3.Install roll over&float valve (1).

4.Lift up fuel tank assembly and connect the emission hose to

the emission port and the wiring connectors on the fuel

pump and sending assembly (5).

5.Install fuel tank assembly along with protectors and tighten

the four fixing bolts to the specified torque.

Torque: 68 N

⋅

m (6.9 kgf.m)

6.Connect fuel filler hose (4) and air breather hose (3), and

clip them firmly.

7.Connect fuel delivery hose (7) and fuel return hose (8), and

clip them firmly.

8.Connect evaporative fuel hose (2).

9.Tighten fuel filler cap.

10.Connect battery ground cable.

Fuel Gage Unit

Removal and Installation

As for removal and installation of the Fuel Gauge Unit, refer to
"Fuel Tank" of this section 6C as the fuel gauge unit is
combined with the fuel pump and sender assembly.

6C-12  ENGINE FUEL

Fuel Filler Cap

General Description

Fuel filler cap includes vacuum valve.
In case any high vacuum happen in tank, the valve works to
adjust the pressure to prevent the tank from being damaged.

Legend

1  Fuel Filler Cap

Inspection

Check the seal ring in the filler cap for presence of any
abnormality and for seal condition.
Replace the filler cap, if abnormal.
CAUTION: The fuel filler cap valve has characteristics.
A defective valve, no valve at all or a valve with the wrong
characteristics will do a lot of harm to engine operating
characteristics; be sure to use the same fuel filler cap as
installed in this vehicle.

ENGINE FUEL  6C-13

Fuel Filter

 

  

Removal and Installation

3

1

2

Removal

1. Inlet and outlet fuel hose

2. Fuel filter

Installation

2. Fuel filter

1. Inlet and outlet fuel hose

6C-14  ENGINE FUEL

Important Operations - Removal

1. Inlet and Outlet Fuel Hose

Use a rag to prevent the fuel from flowing from the fuel hoses.
NOTE:
Immediately plug the fuel hoses.
Do not work in close proximity to sparks or an open flame.

Important Operations - Installation

1. Fuel Filter

1) Install the fuel filter to the fuel pump in the direction

indicated by the arrow stamped on the side of the fuel filter.

2) Start the engine.

Check for fuel leakage from the fuel hose joints.