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