What should be done after installing the governor cross shaft in the Oil SentryTM installation?

After installing the governor cross shaft in the Oil SentryTM installation, the next critical step involves installing the hitch pin to limit inward movement. This step is important because the hitch pin serves to secure the governor cross shaft in place, ensuring that it operates correctly and maintains the proper tension and positioning during the engine's operation. By doing this, you prevent any unintended movement that could lead to improper function of the governor system or even potential engine damage.

The other options, while relevant to the overall assembly process, do not specifically address the immediate actions needed following the installation of the governor cross shaft. For instance, affixing the cylinder head or checking timing marks are tasks that typically occur at different stages in engine assembly. Lubricating the connecting rod cap is also important, but it pertains to a different aspect of engine assembly altogether. The focus after the cross shaft installation should be on ensuring its stability and functionality through the use of the hitch pin.