On Sat, 27 Dec 2008 14:57:41 -0500, Wayne.B wrote:

On Sat, 27 Dec 2008 11:35:52 -0800 (PST), Tim
wrote:

i think they're operating cost comparison's are W-A-A-A-Y overboard.
("Overboard" pardon the pun)

For one thing, they're using gasoline and diesel at the same purchase
costs....

Yes but that's the least of it in my opinion. It is difficult, if
not impossible to build a reliable, high output, lightweight diesel.
If it were possible lots of other people would have done it by now.
High power to weight ratio is what outboards excel at - diesels, not
so much.

Nothing is impossible. You design the tool to do the job. This isn't going
to be every ones engine. E-Tech has that wrapped up. This is a diesel.
Things change!

On Sat, 27 Dec 2008 19:48:24 -0500, RLM wrote:

Yes but that's the least of it in my opinion. It is difficult, if
not impossible to build a reliable, high output, lightweight diesel.
If it were possible lots of other people would have done it by now.
High power to weight ratio is what outboards excel at - diesels, not
so much.

Nothing is impossible. You design the tool to do the job. This isn't going
to be every ones engine. E-Tech has that wrapped up. This is a diesel.
Things change!

Some things don't change. By necessity diesels operate at higher
compression ratios which requires heavier cylinders and heads.
There's no way to save weight there without compromising durability.

On Sun, 28 Dec 2008 02:50:55 -0500, Wayne.B wrote:

On Sat, 27 Dec 2008 19:48:24 -0500, RLM wrote:

Yes but that's the least of it in my opinion. It is difficult, if
not impossible to build a reliable, high output, lightweight diesel.
If it were possible lots of other people would have done it by now.
High power to weight ratio is what outboards excel at - diesels, not
so much.

Nothing is impossible. You design the tool to do the job. This isn't
going to be every ones engine. E-Tech has that wrapped up. This is a
diesel. Things change!

Some things don't change. By necessity diesels operate at higher
compression ratios which requires heavier cylinders and heads. There's
no way to save weight there without compromising durability.

With alloys and liners no problem. The crank and rods is where the beef is
at.

Aluminum heads were used on some diesels in the sixties. Ask an Onan
dealer about DJB's and DJC's. Air and water cooled.

On Sun, 28 Dec 2008 04:23:57 -0500, RLM wrote:

With alloys and liners no problem. The crank and rods is where the beef is
at.

Aluminum heads were used on some diesels in the sixties. Ask an Onan
dealer about DJB's and DJC's. Air and water cooled.

And why is it they are no longer being made? Lack of durability
perhaps? If these were great engines they would have taken over the
market for lightweight diesels by now.

On Sun, 28 Dec 2008 09:56:35 -0500, Wayne.B wrote:

On Sun, 28 Dec 2008 04:23:57 -0500, RLM wrote:

With alloys and liners no problem. The crank and rods is where the beef
is at.

Aluminum heads were used on some diesels in the sixties. Ask an Onan
dealer about DJB's and DJC's. Air and water cooled.

And why is it they are no longer being made? Lack of durability
perhaps? If these were great engines they would have taken over the
market for lightweight diesels by now.

I don't know that they aren't still being made or replaced with a cheaper
engine from a vendor to stay competitive.

This was before Cummins bought them out. I've not kept track of Onan.
Onan didn't release all engine models for industral engine use. The most
common one you will see is probably the CCK style two cyl. opposed engine.
It has been updated and copied over the years so the model designation
changes. Same basic boxer design. Many engines were bought from vendors.

If you're really wanting to know, do the research and keep it to yourself.
These were some of the earlier examples.

On Sat, 27 Dec 2008 19:48:24 -0500, RLM wrote:

On Sat, 27 Dec 2008 14:57:41 -0500, Wayne.B wrote:

On Sat, 27 Dec 2008 11:35:52 -0800 (PST), Tim
wrote:

i think they're operating cost comparison's are W-A-A-A-Y overboard.
("Overboard" pardon the pun)

For one thing, they're using gasoline and diesel at the same purchase
costs....

Yes but that's the least of it in my opinion. It is difficult, if
not impossible to build a reliable, high output, lightweight diesel.
If it were possible lots of other people would have done it by now.
High power to weight ratio is what outboards excel at - diesels, not
so much.

Nothing is impossible. You design the tool to do the job. This isn't going
to be every ones engine. E-Tech has that wrapped up. This is a diesel.
Things change!

HEY!! :)