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I am wondering if being overfull was the cause.
Being overfull certainly
won't help. If the oil gets high enough to get back on the oil pump chain,
or counterweight, it will get foamed up, and that helps it escape. Did you
run the engine any with the plane parked on it's nose? On deceleration
(belly brake ?), do you think you could be sloshing oil forward
Originally there was a tube from the crankcase vent to
a
fitting on the side of the filler tube.
Now I'm confused.
How many vents do you have? You only need one, usually the one on the
filler tube. All this does is keep the pan area from being a sealed
container, to allow room for expansion and contraction when the oil heats
up. It will also vent off any combustion pressure that gets by the side
seals.
The only time I ever got
any significant oil discharge is when I happened to put the vent line in a
low pressure area with lots of airflow. It seemed to suck it out
under those conditions, but moving the vent to another point stopped it.
It sounds like your vent line is still inside the cowl, but is it in an area
that might be getting a lot of airflow, causing a negative
pressure?
Glad to hear
the temps are behaving, but at twice around the pattern every
weekend, you're going to beat my longest time to 40 hours record
:-)
Cheers,
Rusty
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