"John Stricker" wrote in message
...
22° down at the spark plug is quite a bit. Contrary to what Smith
thinks,
the LEV doesn't have an oil pump, it's a simple vertical shaft
motor. But I

Odd, I've stripped many of that series of engines and they had oil
pumps, this allowed them to be used with the shaft more than 15º from
vertical, the restriction on running B&S engines in simmilar
deployments. The pump is driven by the camshaft and uses ports in the
camshaft a valves for the pump and a drill hole to the top of the
case to feed the top main and big end. The limitation from the
virtical is around 25º.

I doubt that it would be any good for direct drive as there is
nothing to take the thrust from his fan.
--

..
--
Cheers,
Jonathan Lowe
whatever at antispam dot net
No email address given because of spam.
Antispam trap in place





haven't seen him be right about too much on here yet, so that's not
too
surprising.

You're probably going to run into problems with oil getting by the
rings
when the engine isn't running and putting enough into the cylinder
to
potentially hydraulically lock it, not unlike the old aircraft
radial
engines with their bottom cylinders.

Is there any way you can turn it so that it's got the engine
mounted with
the plug UP 22°? If you can't do that, you're most likely going to
run into
problems of oil in the cylinders when at rest and higher than
normal oil
consumption when running because the oil's going to want to keep
running
back down on into the cylinder, most likely more than the oil rings
will be
able to control.

For those unfamiliar with the engine he's talking about, here it
is.

http://www.tulsaenginewarehouse.com/...ecs/lev1001151
20/

If you have one of these, you know the oil level plug is just about
at the
point where the bottom cover separates from the block. You can see
that
parting line in the link I posted. Not take a ruler or something
and set it
at about 22° angle. You're going to HAVE to have enough oil in it
to cover
the bearing on the bottom side, that's a necessity. So allow about
1/8" of
oil over it, should be a little more, and see where the oil level
ends up.
The vast majority of it will end up IN the cylinder under the
piston. This
is not a good thing.

Any particular reason you want to use a Tecumseh? I've had many
different
variations of them over the years and haven't been impressed with
any of
them. I can't say they're any worse than a Briggs, but they're
certainly no
better and WAY lower quality than a Honda, amongst others.

John Stricker



"jlauer" wrote in message
om...
Wondering if you have someone could provide an answer to an
engine
installation question. I have a hovercraft that uses a Tecumseh
LEV
80-120 5.5 hp engine for the lifting propeller.

The question is weather the engine can be mounted with the
piston/spark plug facing down (incline is at 22 degress down
angle
from level) without messing up the engine during operation?

I am concerned that the engine might not get enough lubrication
tilted
down at 22 degress during its operation?

Thanks