Orval Fairbairn wrote:
In article .com,
" wrote:

On-Condition wrote:
wrote:

SNIP


Obviously you don't have to fill the cylinder completely with oil to do
a lot of damage. Just increase the pressure in the jug to the point
were rings crack or bolts become fatigued. With the four strokes you
walk the blades, the valves open and the oil that leaked past the lower
rings dribbles into the exhaust stack. With the Zoche there is no
valve, so once oil dribbles into the cylinders past the rings, how do
you get it out? I would guess the only way to clear a lock or to
prevent an over-pressure from a partial hydraulic lock would be to
remove the injector and cycle the engine. Or perhaps the porting design
prevents it? I don't know.

Zoche is a 2-cycle engine, so there is no oil in the crankcase to leak
into the cylinder. Actually, there is no airplane that has ever flown a
Zoche, either, for that matter. He has been around since at least 1980
and has never flown the engine!



Err. You sure about that? It is a 2 stroke DIESEL. The fuel is directly
injected into the cylinder, not passed through the crank case like gas
2 stroke designs. So if there is no oil or fuel in the crankcase, how
is it lubricated?

Ditto on the engine being vapor-ware. I started another thread on small
diesels accordingly. I'm interested in Fords TDCi engine and the
Mercedes smart diesel. I found 2 light aircraft in germany using the
smart engine, but I haven't found any specs on it as a crate engine
yet.

-Matt

SNIP