<VV> Too Much Oil In Engine?

[Mark Durham]

No more needs to be said on the foaming, that is pretty much what
happens. Its easy to tell if the oil if foaming by looking on the
dipstick. It will be a lighter tan color and full or air.

If you are doing a fresh and dry engine, the engine takes about 6
quarts to fill up the oil passages and the oil cooler and read about
full on the dipstick. Oil changes are at the 4.5 to 5 quart level. I
remember on my old corvair that if I fill it clear to full at a oil
change, it will tend to use the first 1/4 to 1/2 quart then quit using
oil. When full there may already be a bit too much for the rotating
parts and too much stays up in the cylinders, etc, and gets past the
rings.
Other traditional flat air cooled engines, the Continental and
Lycoming aircraft engines, do the same thing. The Continental had the
cam low like the Corvair, the Lycoming had the cam high on top. Must
be a design thing. Mark Durham

On Tue, Feb 15, 2011 at 4:51 PM,  <jvhroberts at aol.com> wrote:
>
>  At some point, the crank will whip the oil into a froth, and there will be a substantial increase not just in viscous drag on the crank, but all that added air reduces the effectiveness of the oil as a lubricant and coolant. Plus, it may spew into the PCV system, cause lifter problems, etc. Also, if it goes above the pushrod tubes, the valve covers will flood, and potentially get all kinds of oil down the valve stems.
>
> If it stays below the 'windage tray' in the crankcase, things should be OK.
>
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> John Roberts
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>
> -----Original Message-----
> From: chieftam at aol.com
> To: virtualvairs at corvair.org
> Sent: Tue, Feb 15, 2011 5:33 pm
> Subject: <VV> Too Much Oil In Engine?
>
>
>
>
>
>
> OK great guru's, a question for you.  I have heard and read about the evils of
>
> having too much oil in an engine and have often wondered what actually happens
>
> to a Corvair engine (or other V designs) that has too much oil added to the
>
> crankcase.  What happens?  What is damaged?  I am assuming that various
>
> dipsticks can read differently, or can "slip" causing inaccurate measurements.
>
> Just how much "extra oil" does is take to cause the problems; 1/4 quart, 1/2
>
> quart, 1 quart, 2 quarts,????
>
>
>
> Enquiring Minds
>
> Todd in MN
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