[222 Kd] Fuel Nozzle Inlet Tube Assembly; Installation - Mack E7 Service Manual

5-101.bk Page 70 Friday, March 17, 2006 11:05 AM
[222 KD] FUEL NOZZLE INLET
TUBE ASSEMBLY

Installation

Refer to Figure 6-88.
1. Install the fuel nozzle inlet tube assemblies
(1) into the front and rear cylinder heads.
Lubricate the nozzle inlet tube clamping
screw threads before installing.
2. Install the tube assemblies until light contact
is made with the nozzle holders. Lightly
tighten the clamping screws and then lightly
tighten the fuel inlet tube sleeve nuts (1).
3. Connect the injection pump end of the fuel
tubes to the appropriate fuel injection pump
outlet ports and lightly tighten the sleeve
nuts (6).
4. Install and lightly tighten the fuel inlet tube
insulators and clamp plate and brackets (3).
These tube insulators and clamp plates and
brackets are required to prevent cavitation
erosion and vibration failure of the tubes.
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200 ENGINE ASSEMBLY
5. Tighten all fuel inlet tube assembly clamping
An open-ended "crow's foot" adapter is required
with the torque wrench for installation of nozzle
fuel inlet tube assemblies. Avoid twisting the lines
when tightening the sleeve nuts.
6. While holding the fuel inlet tube assembly
7. Tighten all fuel inlet tube sleeve nuts (6)
8. Tighten all fuel inlet tube insulators and
screws to 35 lb-ft (48 N m) torque using
torque wrench J 24407 or equivalent.
clamping screws, tighten the tube sleeve
nuts (1) at the cylinder heads to 25 lb-ft
(34 N m) torque using torque wrench
J 24407 or equivalent
located at the fuel injection pump outlet ports
to 25 lb-ft (34 N m) torque using torque
wrench J 24407 or equivalent.
clamp plates and brackets.