Diesel Data: Automotive Repair

Fuel Supply Line: Service and Repair

FUEL SYSTEM

a. When connecting the union bolt on the high pressure pipe union, observe the following procedures:




1. Always use 2 new gaskets.
2. Tighten the union bolt by hand.
3. Tighten the union bolt to the specified torque.

Torque: 29 N.m (300 kgf.cm, 21 ft.lbf)

b. When connecting the flare nut on the high pressure pipe union, observe the following procedures:




1. Apply a light coat of engine oil to the flare nut, and tighten the flare nut by hand.
2. Using SST, tighten the flare nut to specified torque.
SST 09023-12700

NOTE: Do not rotate the fuel pipe, when tightening the flare nut.

Torque: 28 N.m (285 kgf.cm, 21 ft.lbf)

HINT
: Use a torque wrench with a fulcrum length of 30 cm (11.81 in.).