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  #2   Report Post  
JAXAshby
 
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Default Huh? Diesel engines don't last 800 hours before major repairs??

go ahead, base kisser, ask him. It will be a new experience for you, going to
parts counter.

kass****er, go to any marine dealer and tell the guy behind the parts

counter
you want "some plugs" for your "yacht" engine. tell him you want to be

sure
the plugs have been "cleaned" and you won't let him try to slip unclean

plugs
in on you. To impress him so he knows who you are, wear your fake Rolex, a

rug
and a gaudy pinkie ring. Tell him how big your woman's tits are now that

she
had them fixed again. Lay your gold Visa card on the counter to let the

guy
know you are serious about those plugs. Make sure to tell the guy you a a
Kitten diesel engine or maybe a Jim Dear or a DDD 44's or a Ky-Boatah or a
DEEtroit 7-61 with mechanical turbo-charger. Tell him your woman likes it

on
top the steering wheel while your yacht is cruising along at 90 knots per

hour.

GAWD, you are stupid beyond comprehension!!! He'd simply ask what KIND
of plug I needed. Unlike you, he'd know that PLUG is a very generic
term when it comes to engines, whether diesel or gas. He'd simply prod
for more information. Unlike you, who heard the word "plug", and
automatically, and blindly, ignored any other type of plug, and went
for spark plugs.








  #3   Report Post  
rock_doctor
 
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Default Huh? Diesel engines don't last 800 hours before major repairs??


"JAXAshby" wrote in message
...
The claim has been made by a poster on this ng who calls himself "steve"

that
diesel engines as used on commercial fishing boats are often torn down for

a
major overhaul after every trip to sea, about 700+ engine time.

Anyone here have experience with diesel engines in commercial fishing

boats?
do those guys really trust their lives to engines that won't go even a

thousand
hours? Anybody know why they do this?


A rebuild is done when necessary (obviously). I have heard that a 2-stroke
Detroit will last around 2500 to 3000 hrs (according to a specific owner).
Now in this case the owner I was talking to eventually traded from a 6-71 to
a large bore Isuzu marine diesel which he swears had over 4000 hrs on the
clock. Disney world would do a rebuild on their launches (3-53 Detroit's)
every year but then in the late 80's switched to Perkins 4-128(?) because
they felt the service time was twice that of the Detroit's (4k-5khrs). Now
in reference to the poster he may have been talking to somebody that only
had one ship (with a single) and they could not afford to brake down and
loose a load. So the cost of a rebuild would be much less then the lost of
a catch. Most commercial companies collect an oil sample at each change and
monitor the material in the oil. Companies like Blackstone can tell you
more that you would ever want to know about your engine. They can specify
oil change intervals, leaking gaskets, bad injectors, warn cylinder sleeves
and so on. So it is reasonable but I suspect its not the norm...

mark


  #4   Report Post  
Wayne.B
 
Posts: n/a
Default Huh? Diesel engines don't last 800 hours before major repairs??

On Tue, 13 Jul 2004 10:22:10 -0400, "rock_doctor"
wrote:

A rebuild is done when necessary (obviously). I have heard that a 2-stroke
Detroit will last around 2500 to 3000 hrs (according to a specific owner).


==========================================

The normal rebuild interval for a naturally aspirated (non-turbo)
Detroit 671 is in the range of 4,000 to 8,000 hours for an engine in
moderate service, that is well maintained, and has not experienced
cooling issues, etc.

  #5   Report Post  
JAXAshby
 
Posts: n/a
Default Huh? Diesel engines don't last 800 hours before major repairs??

yet, wayne, you let pass the claim of the poster whose handle is "steve" when
he said commercial fishing boats have their engines "torn down" after nearly
every trip. 4,000 hours is nearly six months continuous running time, while
8,000 hours is over eleven months.

do you suppose "steve" didn't know what the term "tear down" means?

The normal rebuild interval for a naturally aspirated (non-turbo)
Detroit 671 is in the range of 4,000 to 8,000 hours for an engine in
moderate service, that is well maintained, and has not experienced
cooling issues, etc.











  #6   Report Post  
JAXAshby
 
Posts: n/a
Default Huh? Diesel engines don't last 800 hours before major repairs??

mark, you defended well a poster whose handle is "steve". Unfortunately, you
assumed "steve" is rational. if you knew "steve" a bit more from his wild
claims of knowledge, you would snicker at him like the seventh grade kids do.

The claim has been made by a poster on this ng who calls himself "steve"

that
diesel engines as used on commercial fishing boats are often torn down for

a
major overhaul after every trip to sea, about 700+ engine time.

Anyone here have experience with diesel engines in commercial fishing

boats?
do those guys really trust their lives to engines that won't go even a

thousand
hours? Anybody know why they do this?


A rebuild is done when necessary (obviously). I have heard that a 2-stroke
Detroit will last around 2500 to 3000 hrs (according to a specific owner).
Now in this case the owner I was talking to eventually traded from a 6-71 to
a large bore Isuzu marine diesel which he swears had over 4000 hrs on the
clock. Disney world would do a rebuild on their launches (3-53 Detroit's)
every year but then in the late 80's switched to Perkins 4-128(?) because
they felt the service time was twice that of the Detroit's (4k-5khrs). Now
in reference to the poster he may have been talking to somebody that only
had one ship (with a single) and they could not afford to brake down and
loose a load. So the cost of a rebuild would be much less then the lost of
a catch. Most commercial companies collect an oil sample at each change and
monitor the material in the oil. Companies like Blackstone can tell you
more that you would ever want to know about your engine. They can specify
oil change intervals, leaking gaskets, bad injectors, warn cylinder sleeves
and so on. So it is reasonable but I suspect its not the norm...

mark










  #8   Report Post  
Shawn Willden
 
Posts: n/a
Default Huh? Diesel engines don't last 800 hours before major repairs??

Steven Shelikoff wrote:
You must use an isp to read a usenet newsgroup.


Well, you have to have *some* sort of Internet connection, at least
intermittently. If you have an Internet connection, you're getting it from
some service provider. That provider may or may not be a commercial ISP,
but they are an ISP of some sort.

Shawn
  #9   Report Post  
Steven Shelikoff
 
Posts: n/a
Default Huh? Diesel engines don't last 800 hours before major repairs??

On Wed, 14 Jul 2004 21:42:53 -0600, Shawn Willden
wrote:

Steven Shelikoff wrote:
You must use an isp to read a usenet newsgroup.


Well, you have to have *some* sort of Internet connection, at least
intermittently. If you have an Internet connection, you're getting it from
some service provider. That provider may or may not be a commercial ISP,
but they are an ISP of some sort.


You're making the same mistake he made. No, you don't need an internet
connection of any type to read usenet newsgroups. You can get a
newsfeed without an ISP. The usenet has been around much longer than
the commercial internet as we know it today and for the most part used
UUCP to transfer messages. And you can still use that method without
having any internet access at all.

Of course, when this was all pointed out to Jax and he just huffed and
denied it, as is his usual MO when someone points out a mistake of his,
when the much easier and saner thing to do is to just admit a mistake
and move on. No one's perfect... but Jox thinks he is even though he's
wrong in just about everything he says.

Steve
  #10   Report Post  
JAXAshby
 
Posts: n/a
Default Huh? Diesel engines don't last 800 hours before major repairs??

Shawn, "steve" is easily confused. he had no idea how the internet is
structured.

Steven Shelikoff wrote:
You must use an isp to read a usenet newsgroup.


Well, you have to have *some* sort of Internet connection, at least
intermittently. If you have an Internet connection, you're getting it from
some service provider. That provider may or may not be a commercial ISP,
but they are an ISP of some sort.

Shawn










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