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SERIES 60 Fuel Lines

ADDITIONAL INFORMATION

SHOP NOTES

The following shop notes describe flexible fuel lines and their installation. ‪

Flexible fuel lines are used to facilitate connection of lines leading to and from the fuel tank, and to minimize the effects of any vibration in the installation. ‪

An 0.080 in. restricted orifice is incorporated in the fuel return fitting (upper fitting) at the rear of the cylinder head to maintain fuel pressure in the cylinder head. Do not use restricted fittings anywhere else in the fuel system, and do not substitute a standard fitting for the restricted fitting. ‪

The 0.080 in. restricted orifice is designed to provide the proper fuel system pressure under all conditions. Do not alter or substitute another size since this may alter engine performance and emissions. ‪

When installing fuel lines, it is recommended that connections be tightened only sufficiently to prevent leakage of fuel; thus flared ends of the fuel lines will not become twisted or fractured because of excessive tightening. After all fuel lines are installed, run the engine long enough to determine if all the connections are sufficiently tight. If any leaks occur, tighten the connections only enough to stop the leak. Also check that the fuel filters are tight against the filter adaptors. Do not overtighten filters. ‪

SPECIFICATIONS

Specifications are listed in the General Information section at the beginning of the manual. Exceptions are listed below: ‪

Exceptions to Standard Fastener Torque Specifications supporting the Series 60 Engine are listed in Table and also listed in Table . ‪

Fastener

Size

Torque, Nm

Torque, lbft

Bolt, Injector Clamp ‪

M10 x 1.5 ‪

55-66 ‪

43-49 ‪

Exceptions to Standard Fastener Specifications

Fastener

Size

Torque, Nm

Torque, in.lb

Bolt, Turbo Boost Sensor-to-inlet ‪

M5 x 0.8 ‪

2.4-3.0 ‪

21-26 ‪

Screw, Harness Connector-to-EDU ‪

No.10-24 ‪

2.4-3.0 ‪

21-26 ‪

Screw, Harness Connector-to-ECM ‪

No.10-24 ‪

2.4-3.0 ‪

21-26 ‪

Screw, Injector Wire Connector ‪

M3 x 0.5 ‪

1.4-2.0 ‪

12-18 ‪

Exceptions to Standard Fastener Torque Specifications