Detroit 353 diesel -- aluminum block? How to tell?
 

Tim wrote:
you would put these "ether" pellets in the
tube and they would drop down onto the blowers vanes, and when
cranking the vanes would crush the pellets and sent the particles
spraying into the cylinders.

LoL! Luv it! :-D
.... and I thought I was dealing with ancient technology when I had a
sailboat with a little 4 cylinder Perkins with a heater that was
supposed to warm up somethin' er other for cold weather starting.
Fortunately, I live so far south I never had to use it.

Rick

Detroit 353 diesel -- aluminum block? How to tell?
 

On Mon, 20 Aug 2007 10:00:33 -0700, Tim wrote:


Bob wrote:
Wow, a 3-53 in a boat"? 159 cubic inches!

is this for a gen set? or the main engine?- Hide quoted text -

- Show quoted text -

Tim --

Yep, they used to be pretty common main engines in small workboats and
utility craft, now mostly used for deck engines and gen sets. The
marine engine configuration produces just over 100 hp naturally
aspirated.

Bob

Interesting. I know the old 6-71 "jimmy" was a 426 CID and was rated
at 238 hp in a standard (not marine) configuration. So I'm amazed that
the little 3-53 can obtain 100hp.

If you have worked around the 71 series and somebody lights off a 53
you'll figure out real quick how they got that horsepower. They were
real screamers for their day.

The only ones I worked on were in 5 ton yard cranes but I believe
there was a turbo option for them also.





Bruce in Bangkok
(brucepaigeATgmailDOTcom)

Detroit 353 diesel -- aluminum block? How to tell?
 

On Aug 20, 11:03 pm, "Calif Bill" wrote:
"Tim" wrote in message

ps.com...

On Aug 20, 10:41 am, Bob wrote:

Yep, they used to be pretty common main engines in small workboats and
utility craft, now mostly used for deck engines and gen sets. The
marine engine configuration produces just over 100 hp naturally
aspirated.

Bob-

Bob, by searching around the typical listings on a naturally aspirated
3-53 is about 75 hp. Which I feel is more realistic. I could be
wrong, though.

http://www.usedboats.com/index.php?s...om§ion=search&....

http://www.adieselengine.com/new_page_1.htm
shows 101 hp for the 3-53 and 175 for the 3-53T And since it shows a T I
would assume turbocharged. As the 6-71 with a blower was a 6V-71. the same
blower that was used for years on dragsters and driven via a Gilmer belt.

Oh OK, I see they're pushing it up to 2800 rpm, instead of the
customary 2100 max. That might be the clue to the 100 hp.

Detroit 353 diesel -- aluminum block? How to tell?
 

On Aug 20, 11:09 pm, Wayne.B wrote:
On Mon, 20 Aug 2007 10:00:33 -0700, Tim wrote:
Interesting. I know the old 6-71 "jimmy" was a 426 CID and was rated
at 238 hp in a standard (not marine) configuration. So I'm amazed that
the little 3-53 can obtain 100hp.

The naturally aspirated (non-turbocharged) 6-71 can produce up to 320
hp depending on the injectors used. I have the Johnson & Towers 280
hp version on my trawler.

I didn't realize that Wayne. Thanks!

But then again when I was talking the lower hp ranges, I was
mentioning "standard" version of the engines, too.

Detroit 353 diesel -- aluminum block? How to tell?
 

Calif Bill wrote:
"Tim" wrote in message
ps.com...
On Aug 20, 10:41 am, Bob wrote:

Yep, they used to be pretty common main engines in small workboats and
utility craft, now mostly used for deck engines and gen sets. The
marine engine configuration produces just over 100 hp naturally
aspirated.

Bob-
Bob, by searching around the typical listings on a naturally aspirated
3-53 is about 75 hp. Which I feel is more realistic. I could be
wrong, though.

http://www.usedboats.com/index.php?s...istoryback =1


http://www.adieselengine.com/new_page_1.htm
shows 101 hp for the 3-53 and 175 for the 3-53T And since it shows a T I
would assume turbocharged. As the 6-71 with a blower was a 6V-71. the same
blower that was used for years on dragsters and driven via a Gilmer belt.


All two-stroke Detroits have a blower. It's necessary to the operation
of the engine, does the job that crankcase pressure does in a little
two-stroke. On the inline motors it mounts on the side of the block.

John

Detroit 353 diesel -- aluminum block? How to tell?
 

"JohnM" wrote in message
m...


All two-stroke Detroits have a blower. It's necessary to the operation of
the engine, does the job that crankcase pressure does in a little
two-stroke. On the inline motors it mounts on the side of the block.

John

If a "blower" is defined by you as a turbo (i.e. .., device to increase air
flow into the cylinders), then you are in error. I know several people with
2 stroke DD 6-71's. Some are naturally aspirated, some have turbos
(blowers).

Eisboch

Detroit 353 diesel -- aluminum block? How to tell?
 

Eisboch wrote:

"JohnM" wrote in message
m...


All two-stroke Detroits have a blower. It's necessary to the operation of
the engine, does the job that crankcase pressure does in a little
two-stroke. On the inline motors it mounts on the side of the block.

John

If a "blower" is defined by you as a turbo (i.e. .., device to increase air
flow into the cylinders), then you are in error. I know several people with
2 stroke DD 6-71's. Some are naturally aspirated, some have turbos
(blowers).

Eisboch

A "blower" generally refers to a direct driven super charger, not an
exhaust driven turbo charger.

Detroit 353 diesel -- aluminum block? How to tell?
 

On Wed, 22 Aug 2007 12:27:55 GMT, "Pete C."
wrote:

Eisboch wrote:

"JohnM" wrote in message
m...


All two-stroke Detroits have a blower. It's necessary to the operation of
the engine, does the job that crankcase pressure does in a little
two-stroke. On the inline motors it mounts on the side of the block.

John

If a "blower" is defined by you as a turbo (i.e. .., device to increase air
flow into the cylinders), then you are in error. I know several people with
2 stroke DD 6-71's. Some are naturally aspirated, some have turbos
(blowers).

Eisboch

A "blower" generally refers to a direct driven super charger, not an
exhaust driven turbo charger.

The Detroit Diesel is a two stroke, diesel. The piston goes down on
the power stroke and comes up on the compression stroke. Without the
mechanical driven "blower" which simply blows air in through the
cylinder ports and through the exhaust ports at the beginning of the
compression stroke there would be no way to get a charge of air into
the engine.

If you wanted to increase the pressure and volume of this air flow you
could add a exhaust driven compressor before the "blower", But you
must have the "blower" for the engine to run.


Bruce in Bangkok
(brucepaigeATgmailDOTcom)

Detroit 353 diesel -- aluminum block? How to tell?
 

wrote in message
...
On Wed, 22 Aug 2007 12:27:55 GMT, "Pete C."
wrote:

Eisboch wrote:

"JohnM" wrote in message
m...


All two-stroke Detroits have a blower. It's necessary to the operation
of
the engine, does the job that crankcase pressure does in a little
two-stroke. On the inline motors it mounts on the side of the block.

John

If a "blower" is defined by you as a turbo (i.e. .., device to increase
air
flow into the cylinders), then you are in error. I know several people
with
2 stroke DD 6-71's. Some are naturally aspirated, some have turbos
(blowers).

Eisboch

A "blower" generally refers to a direct driven super charger, not an
exhaust driven turbo charger.

The Detroit Diesel is a two stroke, diesel. The piston goes down on
the power stroke and comes up on the compression stroke. Without the
mechanical driven "blower" which simply blows air in through the
cylinder ports and through the exhaust ports at the beginning of the
compression stroke there would be no way to get a charge of air into
the engine.

If you wanted to increase the pressure and volume of this air flow you
could add a exhaust driven compressor before the "blower", But you
must have the "blower" for the engine to run.


Bruce in Bangkok
(brucepaigeATgmailDOTcom)


Gotcha. I was confusing "blower" with turbocharger as Pete C. pointed out.

Eisboch

Detroit 353 diesel -- aluminum block? How to tell?
 

Eisboch wrote
If a "blower" is defined by you as a turbo (i.e. .., device to increase
air flow into the cylinders), then you are in error. I know several
people with 2 stroke DD 6-71's. Some are naturally aspirated, some have
turbos (blowers).
Eisboch

Richard,
All 2 stroke DD series whether inline or V configuration 71- 53's- 92's
even the old 110's etc.. have blowers, Naturally aspirated (NA) or
turbocharged (TI) . The 6v53 in my boat is a NA with a blower. UD