"Robin" wrote in message
...
I had a brainwave the other day about putting a small (300cc)
aircooled two stroke as an inboard in a small wooden boat. With
adequate air circulation can anyone see any potential issues here? I
would build the boat with this purpose in mind so adapting something
to fit would not be a problem.

Isn't an old Vetus an air cooled two stroke marine engine, or am I imagining
some of that? And didn't they do something strange like run backwards and
forwards?

Tim W

"Tim W" wrote in message
om...

"Robin" wrote in message
...
I had a brainwave the other day about putting a small (300cc)
aircooled two stroke as an inboard in a small wooden boat. With
adequate air circulation can anyone see any potential issues here? I
would build the boat with this purpose in mind so adapting something
to fit would not be a problem.

Isn't an old Vetus an air cooled two stroke marine engine, or am I
imagining some of that? And didn't they do something strange like run
backwards and forwards?

No, silly me it was a VIRE two stroke.

Tim w

On Fri, 21 Aug 2009 21:11:56 GMT, "Tim W"
wrote:

Isn't an old Vetus an air cooled two stroke marine engine, or am I imagining
some of that? And didn't they do something strange like run backwards and
forwards?
Not strange.
Steam is nearly dead, for large merchant ships, replaced by direct
drive Diesel. You stop and reset the valve gear, and then restart
turning the other direction. If you are inept at manuvering, you can
run out of the compressed air used to start the engine.

Casady

On Mon, 24 Aug 2009 12:08:53 +0000, Richard Casady wrote:

On Fri, 21 Aug 2009 21:11:56 GMT, "Tim W"
wrote:

Isn't an old Vetus an air cooled two stroke marine engine, or am I
imagining some of that? And didn't they do something strange like run
backwards and forwards?
Not strange.
Steam is nearly dead, for large merchant ships, replaced by direct drive
Diesel. You stop and reset the valve gear, and then restart turning the
other direction. If you are inept at manuvering, you can run out of the
compressed air used to start the engine.


Vintage Washington, Atlas and Enterprise (and others) diesel engines did
this also. They were frequently used in tugs and other medium sized
boats. Not sure if there are any modern midsize diesels which work this
way.