FUEL INJECTION (FUEL SYSTEMS)(H4DOTC DIESEL) > Fuel Delivery and Return

INSTALLATION

1. CONNECTING THE FUEL LINE QUICK CONNECTOR

CAUTION:

• Make sure there are no damage or dust on connections. If necessary, clean the seal surface of the pipe.

• When reusing the retainer, make sure that neither scratches nor deformation exist on the retainer. If it is faulty, use a new part.

(A)

When removed using the ST

(B)

When removed without using the ST

(a)

Seal surface

(b)

Pipe

1. Connect the quick connector to pipe.

CAUTION:

• Make sure that the quick connector is securely connected.

(A)

Quick connector

(B)

Retainer

(C)

Pipe

• Make sure the two retainer pawls are engaged in their mating positions in the quick connector.

• Be sure to inspect tubes and their connections for any leakage of fuel.

• To connect the connector, hold (d) shown in the figure and push in axial direction.

• When connecting the connector, do not bend or twist the tube forcibly. If the tube is bent, replace with a new part.

(A)

When removed using the ST

(B)

When removed without using the ST

(a)

Quick connector

(b)

Retainer

(c)

Pipe

(d)

Connector holding position

2. CONNECT FUEL DELIVERY HOSE AND FUEL RETURN HOSE.

1. Connect the fuel delivery hose and fuel return hose to the pipe with an overlap of 20 to 25 mm (0.7874 to 0.9843 in).

Type A: When the amount to be inserted is specified.

Type B: When the amount to be inserted is not specified.

L1: 2.5±1.5 mm (0.0984±0.0591 in)

L2: 22.5±2.5 mm (0.8858±0.0984 in)

CAUTION:

Be sure to inspect hoses and their connections for any leakage of fuel.

(1)

Type A

(2)

Type B

(3)

Pipe

(4)

Clamp

(5)

Hose

   

2. After all installation is completed, pump the priming pump on top of the fuel filter assembly to fill the fuel system with fuel.

NOTE:

Pump the priming pump until it is stiff.