Fuel Injector Clamps, Supports, and Tubes

the tube(s) to gain alignment. The tube MUST

Turbosupercharger Base, Supports, and

be aligned in its free state before attempting to

Tie Rods. Refer to figures 5-81 through 5-79.

engage the fittings, t o m i n i m i z e u n w a n t e d

b. Fuel Inlet and Return Hoses and Crank-

stresses.

case

Breather

Tubes. Refer

figures

5-77

(4) Start fittings on both ends by hand until

through

5-71.

the sleeve is seated. If a wrench is required, only

c. E x h a u s t

Pipes

and

Manifolds. Refer

low torques are necessary to seat the sleeve.

figures 5-78 and 5-70 through 5-68.

When the sleeve is seated, an increase in torque

d. Fuel Injector Clamps, Supports, and Tubes.

will be quite evident. When this point is reached,

Refer to figures 5-67 through 5-64 and 4-86, and

draw the nut (each end) up approximately 1 / 6

(1) through (6), below.

of a turn (minimum), but not more than 1 / 3 of

(1) Fuel tubes should be installed in-

a turn (maximum), to complete the tightening

dividually and in the sequence listed below to

operation.

assure adequate wrench clearance. Beginning

Note.

Overtightening

will

damage

the

with the left bank fuel injector tubes (rear pump

sleeve and cause fuel leaks.

head) install tubes for cylinders 5, 3, 1, 6, 2, and

(5) NEVER OVER TIGHTEN when

4 in that order. Install the right bank tubes for

attempting to remedy a fuel leak. Overtightening

c y l i n d e r s 2, 4, 1, 6, 5, and 3 in that order.

will deform the sleeve and eventually lead to tube

Note. Injector tubes for cylinders 1, 2, and

failure. It is permissible to loosen the nut, or

3 right bank, must be routed under the right

fitting, and re-tighten. This procedure will, in

exhaust manifold between cylinders 2R and 3R

many cases, seal the fuel leak. The loosening and

exhaust port manifold connections.

tightening operation tends to re-seat the sleeve,

(2) Special precautions must be taken to

thus providing an effective seal. Replace fittings

ensure that all tube connections to a given in-

and / or tubes rather than overtighten to stop

jection pump port, terminates at the proper

leaks.

cylinder (figure 4-86). Current replacement fuel

(6) The proper installation and positioning

injector tubes have identification tags at each

of the tube clamps is essential to ensure tube lift.

end to assure proper injection pump port con-

Install all stationary clamps as shown in figure 7-

nection and cylinder nozzle connection. In-

31. The floating clamps, i.e., the four clamps

correct hook up of the injector tubes to a wrong

located nearest the pump head, must be

cylinder or injection pump connection would

positioned as specified to ensure maximum

result in damage to the piston rings and cylinder

vibration dampening. The two floating clamps

walls

and

severe

damage

the

engine

the

right

bank

each

support

three

tubes.

operated under full load.

Similar clamps on the left bank support only two

(3) Check the alignment of each tube with

t u b e s , i.e., tube No's. 1 and 2, and 5 and 6.

its mating fitting. It may be necessary to bend

7-24