Isuzu engine C22NE / 22LE / 20LE. Service 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.
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