24. SERVICE PROCEDURE Install STC Install three new 0-rings over the injector into the retaining grooves. Do not twist the 0-rings. Lubricate the 0-rings with clean 15W-40 oil just before installation. Check the bores in the cylinder head for burrs or sharp edges which can damage the 0-rings. Repair damaged injector bores. Install new 0-rings on the STC oil manifold connections. Align the injector with the oil manifold connections and install the injector into the cylinder head injector bore. Install adeepwellsocket27mm [1 1116 in] overthetop link of the injec- tor.
Use the socket so it will still rest completely on the top surface of the injector top cap to avoid bending the inner part of the top cap. Use a clean, blunt instrument to seat the injector in the bore. A “snap” will be heard and felt as the injector is seated. If the injector does not seat, remove it and check the 0-rings for damage. Replace damaged 0-rings. PC450-ENG 3-82 CAUTION Be sure to place the instrument used to install the injectors on the top cap of the injector, not on the plunger or link. The plung- ers will be damaged. CAUTION