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How Does Lycoming Valve Seats Get Oil?

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HomeBuilt101

Well-Known Member
Joined
Oct 20, 2015
Messages
384
Location
Aguila AZ
Looking at the engine parts manual I am trying to figure out how the valve train gets oiled on the Lycoming...

Is appears that the lifters have an oil hole that pushes oil into the pushrod and since the pushrod shafts are hollow the oil gets forced through the pushrod up (out) to the rocker arm and this oil flow gets pushed through the rocker arm and the rocker arm shaft has a hole that channels the oil to the rocker arm bushings and I guess the tip of the rocker arm has a hole that channels oil to the valve tip...IS THIS ACCURATE???

If the above is true then how does the valve stem itself get oiled?

THANKS for the help!!!
 
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