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Cummins N14 – STC Engines

Install the oil manifold connector using new o-rings. Lubricate the o-rings and the rocker housing bores with
vegetable oil. Also lubricate the internal jumper tube and o-ring and carefully align them with the external manifold
connector during assembly. A snap will be felt as the oil manifold connector seats into the rocker lever housing.
Install the two mounting capscrews and tighten.
Torque Value: 24 N•m [18 ft-lb]

Install the internal oil tube using a new grommet seal and new o-rings. Lubricate the o-rings with vegetable oil.

NOTE: When installing injectors for reuse, new o-rings must be installed on the injector.
Lubricate the o-rings with lubricating oil just before installation.

Install the injector and hold down clamp.
Use injector puller, Part No. 3822697, to install STC injectors.
Make sure the injector oil feed is aligned over the oil transfer tube.

Install the hold down clamp capscrew.
Torque Value: 54 N•m [40 ft-lb]