104 Maintenance 3 Wet the seal on the new filter with clean engine oil or fuel. 4 CAUTION Never fill filter with fuel before installing. Contaminated fuel causes accelerated wear to fuel system components. Spin on the new filter onto the filter head until it fully contacts the seal (no side movement evident). Tighten an additional 1/2 to 3/4 turn by hand. DO NOT overtighten! 5 To eliminate air from the filter, operate the primer pump to draw fuel and fill the filter. 6 WARNING DO NOT work near the fan with the engine running. The engine fan can engage at any time without warning. Anyone near the fan when it turns on could be seriously injured.
Before turning on the ignition, be sure that no one is near the fan. Start the engine and check for leaks. Correct any leaks with the engine stopped.