RW Salnick wrote in news:f4mi8u$34i$1
@gnus01.u.washington.edu:

A 4 cyl 9.9 HP outboard would be a marvel of miniturization. Perhaps
you meant a 4 cycle engine - you know - the heavy ones you have to set
down just so, or they'll dump heavy crankcase oil on the dock and then
into the water...



You haven't seen some of the multicylinder model airplane engines, have
you....(c;

http://www.osengines.com/engines/osmg1320.html
4 cylinder, 4.1hp @ 8000 RPM, 4 stroke diesel, 13.3ccX4
What a great inboard dingy it would make...(c;
.....hooked to a surface drive...

Use two of them....twin engine airboat dingy!

Larry
--
http://www.spp.gov/
The end of the USA and its Constitution....RIP

Larry wrote:

RW Salnick wrote in news:f4mi8u$34i$1
@gnus01.u.washington.edu:


A 4 cyl 9.9 HP outboard would be a marvel of miniturization. Perhaps
you meant a 4 cycle engine - you know - the heavy ones you have to set
down just so, or they'll dump heavy crankcase oil on the dock and then
into the water...




You haven't seen some of the multicylinder model airplane engines, have
you....(c;

http://www.osengines.com/engines/osmg1320.html
4 cylinder, 4.1hp @ 8000 RPM, 4 stroke diesel, 13.3ccX4
What a great inboard dingy it would make...(c;
....hooked to a surface drive...

Use two of them....twin engine airboat dingy!

Larry

4HP and it weighs less than five pounds? Why AREN'T we using them for
outboards???
DT

dt wrote in news:f4p0hv$3nl$1
@geraldo.cc.utexas.edu:

4HP and it weighs less than five pounds? Why AREN'T we using them for
outboards???
DT



The question arises: Why aren't they already built INTO the dinks?

One of the best inventions I've seen someone make was at our marina not
long ago. These transients had a small inflatable powered by a $69
Weedeater they had built a tiller for. The weedeater engine was held to
the transom with an adjustable motor mount for a trolling motor (adjusts
depth of prop up and down). They took the weed whacker off the bottom.
They then bent the aluminum tubing into an 80 degree from it's 45 degree
so the prop would point back, not down. The power comes down the tubing
to the weed whacker on a speedometer cable flexible shaft. To keep the
salt out of it, they filled the aluminum tubing with a light grease, then
put the end bearing back on it. A trolling motor prop from WalMart was
attached to the weed whacker drive where the spool goes. The drive shaft
with the little engine on top is vertical. The deadman throttle cable
normally on a plastic mount, which was discarded, was moved to a tiller
handle made from another piece of aluminum tubing under the engine. If
your hand left the tiller, he had the throttle set to stall the engine so
the boat couldn't run off by itself if the kid fell overboard. It simply
stopped.

Voila! The $99 AIR COOLED (never flushed), 2-stroke outboard motor! His
kids were riding around in that dingy a lot...great fun.

He told me it was just too cheap to repair. When the kids wore that
motor out, he would simply replace it with another "outboard from Home
Depot"....(c; 1 gallon of gas is enough for a whole weekend in the tiny,
tiny carb.

Obviously, dingy power DOESN'T have to cost the same as a car....(c;

Larry
--
http://www.spp.gov/
The end of the USA and its Constitution....RIP

JohnW wrote in news:MPG.20da1ccdeb697eaa989804
@news.aaisp.net.uk:

if I could work out the cooling :-)


Two 12V PC cooling fans and a gelcell?...(c;

Larry
--
http://www.spp.gov/
The end of the USA and its Constitution....RIP

On Wed, 13 Jun 2007 09:55:58 -0500, dt wrote:

4HP and it weighs less than five pounds? Why AREN'T we using them for
outboards???

8,000 RPM without a proper lubrication system or cooling is not going
to last very long. That thing is putting out about 5 hp per cubic
inch which is comparable to a drag racing engine designed for 6 second
bursts at full power.

Larry wrote:
dt wrote in news:f4p0hv$3nl$1
@geraldo.cc.utexas.edu:

4HP and it weighs less than five pounds? Why AREN'T we using them for
outboards???
DT



The question arises: Why aren't they already built INTO the dinks?

One of the best inventions I've seen someone make was at our marina not
long ago. These transients had a small inflatable powered by a $69
Weedeater they had built a tiller for. The weedeater engine was held to
the transom with an adjustable motor mount for a trolling motor (adjusts
depth of prop up and down). They took the weed whacker off the bottom.
They then bent the aluminum tubing into an 80 degree from it's 45 degree
so the prop would point back, not down. The power comes down the tubing
to the weed whacker on a speedometer cable flexible shaft. To keep the
salt out of it, they filled the aluminum tubing with a light grease, then
put the end bearing back on it. A trolling motor prop from WalMart was
attached to the weed whacker drive where the spool goes. The drive shaft
with the little engine on top is vertical. The deadman throttle cable
normally on a plastic mount, which was discarded, was moved to a tiller
handle made from another piece of aluminum tubing under the engine. If
your hand left the tiller, he had the throttle set to stall the engine so
the boat couldn't run off by itself if the kid fell overboard. It simply
stopped.

Voila! The $99 AIR COOLED (never flushed), 2-stroke outboard motor! His
kids were riding around in that dingy a lot...great fun.

He told me it was just too cheap to repair. When the kids wore that
motor out, he would simply replace it with another "outboard from Home
Depot"....(c; 1 gallon of gas is enough for a whole weekend in the tiny,
tiny carb.

Obviously, dingy power DOESN'T have to cost the same as a car....(c;

Larry

Indian kids at Neah Bay adapted weed eater motors to their bicycles.
Hop on and pedal and give it some juice. Engine starts and you keep
pedaling to get some rpms. Then hang on!
Nothing like a screaming 2 stroke smoking down the road at 30 mph
probably with no brakes.
Res cops finally banned them.
Gordon

Wayne.B wrote in
:

8,000 RPM without a proper lubrication system or cooling is not going
to last very long. That thing is putting out about 5 hp per cubic
inch which is comparable to a drag racing engine designed for 6 second
bursts at full power.



I delivered papers when I was a kid on a bike with a big newspaper boy's
basket on the front.....

On each corner of the basket, we affixed a Fox .60 model airplane engine
with a throttled carb opened with string back to the left and right
handgrips. Fuel came from a 1 gallon can we'd put a bottom fuel outlet
into, gravity fed. Fuel was model airplane fuel, home made with mineral
oil lube also used in our planes.

Wide open on a flat road with one kid on it, I don't think we ever found
our "terminal velocity" because the bike always came apart in some way
before we maxed out the climbing speed....(c; Bike speedometers only
went to 50, but the cable drive always overheated and failed as the
pointer wound around to zero again...poorly lubed for high speed....broke
the drive pin right off when they seized...

Mom didn't like it because our clothes were always soaked in lube oil
after a few miles buzzing around our little town. The cops busted us
when the neighbors complained of the intense noise of 3 or 4 air-powered
bikes drown out the TV in the living room...ending the fun. We used to
ride them out in the country, then light off the engines, after that.

I still have a few "self-induced scars" from these early adventures....
(c; In our little "gang", trying to get them to stop seizing over 12,000
RPM, way beyond their design rating of course, was more important than
fighting or doing drugs. We DID have sex with a few girls, though.

Seizing at 12,000 RPM was usually an "unrecoverable event"....(sigh)

Larry
--
http://www.spp.gov/
The end of the USA and its Constitution....RIP

Larry wrote:


On each corner of the basket, we affixed a Fox .60 model airplane
engine
with a throttled carb opened with string back to the left and right
handgrips.

I probably predate you by a few years.

Had a "FOX 35" which was a screaming demon, with a 10-6 prop, and the
biggest one they made at the time.

Had an "O/R 60" that had seen better days.

Hooked it up to as drill motor and used it as a compressor to spray
airplane dope.

Ah yes, the toys of one's childhood.

Lew