Lesson 1/learning Event 3
are dirt, the condition and amount of oil, clogged wire mesh, and holes in the oil reservoir. In addition,
check it for secure mounting and the condition of the air hose, hose clamps, and all fittings.
Don't forget to check the intake manifold, too. It is part of the air-fuel system. To check the intake
manifold gasket for leaks, put a small amount of oil around the intake manifold flanges with the engine
running. If the oil is sucked into the manifold, the gaskets are leaking. Loose manifold bolts will also cause
the gaskets to leak, so tighten them before blaming the gaskets. You should also look for excess dirt on the
manifold and check for a cracked or warped manifold.