If you are familiar with the Universal Atomic 4 gas engine, you know that it
originally used raw water as the cooling system.

Moyer Marine, and Indiga Electronics both sell a Heat Exchanger which can be
mounted near the engine, therefore eliminating the raw water as the cooling
system and using antifreeze as the coolant.

The Heat Exchanger units cost around $500 dollars.

I got to wondering ??? Can I or is there ,,, a place where I can buy a
Heat Exchanger that will work with the Atomic 4 but isn't so expensive?

Do motor boats use this Heat Exchange method?

It just seems like $500 dollars is expensive..

Any thoughts?

Thomas,
Unless you know where to get everything you might need and are a very
effective fabricator, the package is probably a good idea.
You might be able to aquire a heat exchanger that would be adequate for
about 300$us but then you sitll need a raw water pump and an head tank
(at least).

Or - Put the 500 in a CD and use that account as a down payment on the
diesel that you get as a replacement.

Matt Colie

Thomas Wentworth wrote:
If you are familiar with the Universal Atomic 4 gas engine, you know that it
originally used raw water as the cooling system.

Moyer Marine, and Indiga Electronics both sell a Heat Exchanger which can be
mounted near the engine, therefore eliminating the raw water as the cooling
system and using antifreeze as the coolant.

The Heat Exchanger units cost around $500 dollars.

I got to wondering ??? Can I or is there ,,, a place where I can buy a
Heat Exchanger that will work with the Atomic 4 but isn't so expensive?

Do motor boats use this Heat Exchange method?

It just seems like $500 dollars is expensive..

Any thoughts?

On Tue, 14 Mar 2006 22:42:45 GMT, "Thomas Wentworth"
wrote:

Do motor boats use this Heat Exchange method?

It just seems like $500 dollars is expensive..

Any thoughts?

Yes, I do. It's only half a boat buck.

If that seems expensive, then you don't appreciate the realities of
trying to manufacture and market specialized, low volume equipment. I
doubt that anyone is getting rich selling this stuff. With all due
respect, if $500 seems expensive to you, then you should reconsider
getting a mid size cruising sail boat. You want to be in a position
where you own the boat and not the other way around. Seriously,
$500 is the tip of the iceberg.

To answer your other question, almost all larger engines in boats,
especially diesels, are fresh water cooled with heat exchangers.
There are exceptions of course but all engines designed for long life
and salt water service will be FWC. The one major exception is small
runabouts and speed boats where low weight and low cost are major
considerations in the marketplace, and long life is less of an issue.

Hey Matt,,, you got me! The $500 into the diesel account. That does make a
lot of sense.


At about a 5-6% return,,,, the AT4 needs to keep running for another forty
years!


=====================
"Matt Colie" wrote in message
...
Thomas,
Unless you know where to get everything you might need and are a very
effective fabricator, the package is probably a good idea.
You might be able to aquire a heat exchanger that would be adequate for
about 300$us but then you sitll need a raw water pump and an head tank (at
least).

Or - Put the 500 in a CD and use that account as a down payment on the
diesel that you get as a replacement.

Matt Colie

Thomas Wentworth wrote:
If you are familiar with the Universal Atomic 4 gas engine, you know that
it originally used raw water as the cooling system.

Moyer Marine, and Indiga Electronics both sell a Heat Exchanger which can
be mounted near the engine, therefore eliminating the raw water as the
cooling system and using antifreeze as the coolant.

The Heat Exchanger units cost around $500 dollars.

I got to wondering ??? Can I or is there ,,, a place where I can buy a
Heat Exchanger that will work with the Atomic 4 but isn't so expensive?

Do motor boats use this Heat Exchange method?

It just seems like $500 dollars is expensive..

Any thoughts?

Wayne, why is it that you always attack the questioner when the question is
asked in good faith? Rather than just say "$500 dollars isn't that much for
a heat exchanger" , you go off on one of your "you don't need no stinking
boat" rants!

Don't forget, there are many mid size, and larger cruising sailboats that
don't even have an engine. Never mind a heat exhanger.

I would prefer to not spend $500 if I don't need to. I just thought maybe
someone here who is very handy, or has had experience with engines, and
cooling of engines might have an answer.

The fact is: many on the people who spend their lives cruising throughout
the world never spend $500 on about anything. They live and sail very
simply.


--------------
"Wayne.B" wrote in message
...
On Tue, 14 Mar 2006 22:42:45 GMT, "Thomas Wentworth"
wrote:

Do motor boats use this Heat Exchange method?

It just seems like $500 dollars is expensive..

Any thoughts?

Yes, I do. It's only half a boat buck.

If that seems expensive, then you don't appreciate the realities of
trying to manufacture and market specialized, low volume equipment. I
doubt that anyone is getting rich selling this stuff. With all due
respect, if $500 seems expensive to you, then you should reconsider
getting a mid size cruising sail boat. You want to be in a position
where you own the boat and not the other way around. Seriously,
$500 is the tip of the iceberg.

To answer your other question, almost all larger engines in boats,
especially diesels, are fresh water cooled with heat exchangers.
There are exceptions of course but all engines designed for long life
and salt water service will be FWC. The one major exception is small
runabouts and speed boats where low weight and low cost are major
considerations in the marketplace, and long life is less of an issue.

On Wed, 15 Mar 2006 02:27:10 GMT, "Thomas Wentworth"
wrote:

Wayne, why is it that you always attack the questioner when the question is
asked in good faith? Rather than just say "$500 dollars isn't that much for
a heat exchanger" , you go off on one of your "you don't need no stinking
boat" rants!

I don't think I said that. I do believe that you have unrealistic
expectations however.


Don't forget, there are many mid size, and larger cruising sailboats that
don't even have an engine. Never mind a heat exhanger.

Frankly I don't think you'll get too far in a 30 something boat
without an engine. Lin and Larry Pardey used to row their 24
supposedly, but in well over 30 years of cruising I've never seen
anyone do it.

I would prefer to not spend $500 if I don't need to. I just thought maybe
someone here who is very handy, or has had experience with engines, and
cooling of engines might have an answer.

Understood. The heat exchanger is not required, just a nice option to
have.

The fact is: many on the people who spend their lives cruising throughout
the world never spend $500 on about anything. They live and sail very
simply.

Perhaps, but that has not been my experience however. When I'm
cruising the money seems to flow like water beneath the keel. That's
not a complaint, just a fact.

Don't forget, there are many mid size, and larger cruising sailboats that
don't even have an engine. Never mind a heat exhanger.


No ENGINE? How do they make loud noise & pollute the air?
Not having an engine is un-American!


Wayne.B wrote:
Frankly I don't think you'll get too far in a 30 something boat
without an engine. Lin and Larry Pardey used to row their 24
supposedly, but in well over 30 years of cruising I've never seen
anyone do it.


I disagree, you can go anywhere without an engine that you
can go with one... you just need more skill & patience. For
a person who has raced engineless one-designs for years,
it's no biggy... OTOH that person will also recognize when
conditions are not favorable to sail up to the dock, and
anchor out instead. For a persons whose sailing skills are
more limited, the "no engine" option is just a high brow
overly-moralistic way to justify damaging your (and probably
other peoples) boat(s).

As for Lin & Larry Pardey, they get towed a lot. Of course,
you won't see in their books that they often tack back &
forth at the entrance to channels, begging passing vesels
for a tow.






The fact is: many on the people who spend their lives cruising throughout
the world never spend $500 on about anything. They live and sail very
simply.


This is in those plywood boats with blue tarps for sails, right?


Perhaps, but that has not been my experience however. When I'm
cruising the money seems to flow like water beneath the keel. That's
not a complaint, just a fact.


Complaint?!?? I thought you were bragging!

Most of our friends have spent at least double what they
planned on outfitting their boat. We haven't but then we
made up a rather lavish budget and have since trimmed some
items.

Then again, some people are rather strange about what
they'll consider "expensive." A $150K boat is not too
expensive, but spending the night in a $75 marina is. A $9k
RIB with an outboard is not too expensive, a $3800 rowing
dink is. Etc etc etc.

Fresh Breezes- Doug King

On Thu, 16 Mar 2006 12:42:34 -0500, DSK wrote:

you can go anywhere without an engine that you
can go with one... you just need more skill & patience.

You have cruised the ICW without an engine?

you can go anywhere without an engine that you
can go with one... you just need more skill & patience.


Wayne.B wrote:
You have cruised the ICW without an engine?


For short periods, yes. Involuntarily

DSK

Yep!

Roger

http://home.insightbb.com/~derbyrm

"Wayne.B" wrote in message
...
On Thu, 16 Mar 2006 12:42:34 -0500, DSK wrote:

you can go anywhere without an engine that you
can go with one... you just need more skill & patience.

You have cruised the ICW without an engine?