Happened to stop down at the marina yesterday to drop off some promised
stuff for the new owner of the Navigator.
I spent some time talking to one of the Kingman mechanics who I really trust
about the Hatteras I have a little bit of interest in.

He delivered the boat to Kingman for the current owner from someplace down
south and overall had positive comments about it except for some personal
reservations of the newly installed Yanmar diesels. Turns out they deliver
the advertised horsepower (440 ea) but are *very* high revving engines for
diesels at 3600 rpm. He mentioned that although they run fine and
apparently do not have a higher than normal failure rate, they sound like
they are ready to blow apart, even at cruise.

Don't think I could handle that. If the GB sells, I may arrange a sea
trial, but I think meanwhile I'll keep looking.

Eisboch

On Sat, 1 Mar 2008 22:07:24 -0500, "Eisboch" wrote:

Happened to stop down at the marina yesterday to drop off some promised
stuff for the new owner of the Navigator.
I spent some time talking to one of the Kingman mechanics who I really trust
about the Hatteras I have a little bit of interest in.

He delivered the boat to Kingman for the current owner from someplace down
south and overall had positive comments about it except for some personal
reservations of the newly installed Yanmar diesels. Turns out they deliver
the advertised horsepower (440 ea) but are *very* high revving engines for
diesels at 3600 rpm. He mentioned that although they run fine and
apparently do not have a higher than normal failure rate, they sound like
they are ready to blow apart, even at cruise.

Don't think I could handle that. If the GB sells, I may arrange a sea
trial, but I think meanwhile I'll keep looking.

Isn't that interesting.

My brother and I are looking at a boat next Wednesday that has been
retrofitted with those same engines I think.

I'll have to ask some questions.

Short Wave Sportfishing wrote:
On Sat, 1 Mar 2008 22:07:24 -0500, "Eisboch" wrote:

Happened to stop down at the marina yesterday to drop off some promised
stuff for the new owner of the Navigator.
I spent some time talking to one of the Kingman mechanics who I really trust
about the Hatteras I have a little bit of interest in.

He delivered the boat to Kingman for the current owner from someplace down
south and overall had positive comments about it except for some personal
reservations of the newly installed Yanmar diesels. Turns out they deliver
the advertised horsepower (440 ea) but are *very* high revving engines for
diesels at 3600 rpm. He mentioned that although they run fine and
apparently do not have a higher than normal failure rate, they sound like
they are ready to blow apart, even at cruise.

Don't think I could handle that. If the GB sells, I may arrange a sea
trial, but I think meanwhile I'll keep looking.

Isn't that interesting.

My brother and I are looking at a boat next Wednesday that has been
retrofitted with those same engines I think.

I'll have to ask some questions.

Be very careful with those. http://www.yanmarsettlement.com/

"DownTime" wrote in message
. ..

Short Wave Sportfishing wrote:

I'll have to ask some questions.

Be very careful with those. http://www.yanmarsettlement.com/


In the case of the boat that I have casual interest in, the engines are much
newer than those referenced in the link. They are also model 6LY2A-STP's
which are close, but different.

In all fairness, the mechanic told me that they had re-powered a busy
commercial charter "head" boat based out of Plymouth with the Yanmar
6LY2A-STP engines. He said that they have been used daily during the summer
season for the past 2 or 3 years and are not exactly "babied". The charter
company has not had any problems at all with them.

The Volvo's that I had in the Navigator ran at about 2600 rpm at cruise and
2800 rpm at WOT and they seemed happy. 3600 rpm just sounds very high for
a diesel. It's something I'll definitely take note of should I decide to
pursue this boat.

Eisboch

On Sun, 2 Mar 2008 06:48:44 -0500, "Eisboch" wrote:

The Volvo's that I had in the Navigator ran at about 2600 rpm at cruise and
2800 rpm at WOT and they seemed happy. 3600 rpm just sounds very high for
a diesel. It's something I'll definitely take note of should I decide to
pursue this boat.

3600 is very high, and the engine develops a lot of horsepower for its
weight and displacement, all indicators of high stress. A quick read
through the class action documents shows that Yanmar is requiring a
timing belt replacement every 1250 hours as routine maintenance. That
is very unusual in my experience, and may go the heart of the valve
failure issue.

On Sun, 2 Mar 2008 06:48:44 -0500, "Eisboch" wrote:


"DownTime" wrote in message
...

Short Wave Sportfishing wrote:

I'll have to ask some questions.

Be very careful with those. http://www.yanmarsettlement.com/


In the case of the boat that I have casual interest in, the engines are much
newer than those referenced in the link. They are also model 6LY2A-STP's
which are close, but different.

In all fairness, the mechanic told me that they had re-powered a busy
commercial charter "head" boat based out of Plymouth with the Yanmar
6LY2A-STP engines. He said that they have been used daily during the summer
season for the past 2 or 3 years and are not exactly "babied". The charter
company has not had any problems at all with them.

The Volvo's that I had in the Navigator ran at about 2600 rpm at cruise and
2800 rpm at WOT and they seemed happy. 3600 rpm just sounds very high for
a diesel. It's something I'll definitely take note of should I decide to
pursue this boat.

I could be very wrong about this, but it's my understanding that the
whole point of a diesel was higher torgue and horse power at low rpms.

3600 seems very high to me to develop that kind of hp on a diesel.

"Short Wave Sportfishing" wrote in message
...
On Sun, 2 Mar 2008 06:48:44 -0500, "Eisboch" wrote:


"DownTime" wrote in message
m...

Short Wave Sportfishing wrote:

I'll have to ask some questions.

Be very careful with those. http://www.yanmarsettlement.com/


In the case of the boat that I have casual interest in, the engines are
much
newer than those referenced in the link. They are also model 6LY2A-STP's
which are close, but different.

In all fairness, the mechanic told me that they had re-powered a busy
commercial charter "head" boat based out of Plymouth with the Yanmar
6LY2A-STP engines. He said that they have been used daily during the
summer
season for the past 2 or 3 years and are not exactly "babied". The
charter
company has not had any problems at all with them.

The Volvo's that I had in the Navigator ran at about 2600 rpm at cruise
and
2800 rpm at WOT and they seemed happy. 3600 rpm just sounds very high
for
a diesel. It's something I'll definitely take note of should I decide to
pursue this boat.

I could be very wrong about this, but it's my understanding that the
whole point of a diesel was higher torgue and horse power at low rpms.

3600 seems very high to me to develop that kind of hp on a diesel.


True, but on the other hand, technology advances and diesel engine
manufacturers have been getting more power out of smaller packages in modern
turbo engine designs. The RPM ratings have also been rising. Only time
will tell if the trade-off in terms of life expectancy between rebuilds
versus cost will be acceptable to the consumers.

The diesels in current Ford and GM trucks happily rev to 4000 rpm.

Eisboch

On Sun, 2 Mar 2008 09:19:25 -0500, "Eisboch" wrote:


"Short Wave Sportfishing" wrote in message
.. .
On Sun, 2 Mar 2008 06:48:44 -0500, "Eisboch" wrote:


"DownTime" wrote in message
om...

Short Wave Sportfishing wrote:

I'll have to ask some questions.

Be very careful with those. http://www.yanmarsettlement.com/


In the case of the boat that I have casual interest in, the engines are
much
newer than those referenced in the link. They are also model 6LY2A-STP's
which are close, but different.

In all fairness, the mechanic told me that they had re-powered a busy
commercial charter "head" boat based out of Plymouth with the Yanmar
6LY2A-STP engines. He said that they have been used daily during the
summer
season for the past 2 or 3 years and are not exactly "babied". The
charter
company has not had any problems at all with them.

The Volvo's that I had in the Navigator ran at about 2600 rpm at cruise
and
2800 rpm at WOT and they seemed happy. 3600 rpm just sounds very high
for
a diesel. It's something I'll definitely take note of should I decide to
pursue this boat.

I could be very wrong about this, but it's my understanding that the
whole point of a diesel was higher torgue and horse power at low rpms.

3600 seems very high to me to develop that kind of hp on a diesel.

True, but on the other hand, technology advances and diesel engine
manufacturers have been getting more power out of smaller packages in modern
turbo engine designs. The RPM ratings have also been rising. Only time
will tell if the trade-off in terms of life expectancy between rebuilds
versus cost will be acceptable to the consumers.

The diesels in current Ford and GM trucks happily rev to 4000 rpm.

Good point.

Damn I miss my 7.3 liter diesel. :)

Gene Kearns wrote in
news
On Sat, 1 Mar 2008 22:07:24 -0500, Eisboch penned the following well
considered thoughts to the readers of rec.boats:

snips

Turns out they deliver
the advertised horsepower (440 ea) but are *very* high revving engines
for diesels at 3600 rpm.

"high revving" and "diesel" do not belong in the same sentence.

Regardless of the fuel source, high speeds means, by definition,
accelerated wear... quite the opposite of the goal of using a diesel
engine.


My story why diesels and high engine speed are mutually exclusive:

In 1985 I acquired a Volvo Turbo Diesel 780 sedan. My father had just
purchased it new a month before for my mother who had just passed away
suddenly. My father offered to sell it to me at a discount, no money
down, easy payments, no interest. I actually didn't want it, even on
those terms, but we had a baby on the way and my whole family, wife,
father sisters etc. essentially forced me to get it to replace my wife's
"unsuitable for a baby" two door sports coupe. I was very suspicious of
car diesels, having seen several GM car diesels of the era melt down. I
was assured by lots of friends I consulted that the Europeans knew how to
make a car with a diesel and there shouldn't be any problems with the
Volvo diesel.

Well, within two years, it was smoking so bad that cars behind me would
slow down to get out of the cloud. By 30,000 miles I took it to the
dealer to figure out the problem. By now it was out of warranty (much
shorter warranties in thoses days). Compression was bad, but they didn't
know why. Pulled the heads and reported to me that the cylinders had
"enlarged." Enlarged? I've worked on cars since high school (all gas) and
had never seen that one. Bad rings, valves, but enlarged cylinders? I
asked them how that happened after 30,000 miles and they couldn't answer
me. I answered them: since the car had always been serviced at the
dealer, the car was either poorly serviced or poorly built, but either
way I ought not to pay. After weeks of threatening letters and promised
lawsuits directed to Volvo North America in New Jersey, they capitulated
and rebuilt the engine at Volvo's expense. They made me pay for the new
belts and hoses. I traded it on a Ford Tarus wagon within a week and
never looked back.

The point is, that we drove the car like we drive our gas cars, and not
with a light foot. We revved it high going up the onramps, drove it to
the ski lodge up the mountain at full speed and even took it on a car
rally or two. With the turbo, it had plenty of power and high revs to do
these things. But stamina it didn't have. The thing was toast after
30,000 miles. I will never own another diesel in a car as long as I live,
unless that's the only thing going. As lots of the other posters have
said, they are NOT made for high revving.

"akheel" wrote in message
...

In 1985 I acquired a Volvo Turbo Diesel 780 sedan.

Well, within two years, it was smoking so bad that cars behind me would
slow down to get out of the cloud. By 30,000 miles I took it to the
dealer to figure out the problem. By now it was out of warranty (much
shorter warranties in thoses days). Compression was bad, but they didn't
know why. Pulled the heads and reported to me that the cylinders had
"enlarged." Enlarged? I've worked on cars since high school (all gas) and
had never seen that one. Bad rings, valves, but enlarged cylinders? I
asked them how that happened after 30,000 miles and they couldn't answer
me. I answered them: since the car had always been serviced at the
dealer, the car was either poorly serviced or poorly built, but either
way I ought not to pay. After weeks of threatening letters and promised
lawsuits directed to Volvo North America in New Jersey, they capitulated
and rebuilt the engine at Volvo's expense. They made me pay for the new
belts and hoses. I traded it on a Ford Tarus wagon within a week and
never looked back.

The point is, that we drove the car like we drive our gas cars, and not
with a light foot. We revved it high going up the onramps, drove it to
the ski lodge up the mountain at full speed and even took it on a car
rally or two. With the turbo, it had plenty of power and high revs to do
these things. But stamina it didn't have. The thing was toast after
30,000 miles. I will never own another diesel in a car as long as I live,
unless that's the only thing going. As lots of the other posters have
said, they are NOT made for high revving.


Turbo diesels have improved immensely since 1985. Hours between rebuilds
may have decreased from the old, low RPM, non-turbo diesels, but they still
provide a very decent service life, usually 3 or 4 times that of a gasoline
engine. I've had somewhat newer Volvo turbo diesels in a boat (1999), a
Ford truck (that engine had some issues, but when it was fixed, it ran it
great) , a John Deere tractor and in a Dodge (Mercedes) Sprinter. You can
stand beside the Sprinter while it's running and not realize it's a diesel.

I really like modern diesels. I traded the '05 F-350 diesel truck in for
an '07 gas powered Ford Ranger.
I regret that now. The F-350 had twice the pep, got better fuel mileage and
hauled or towed anything.

Eisboch