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 Yanmar Diesels / Single or Twin
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Author Previous Topic: 1988 Silverton 37 bilge blower quesion Topic Next Topic: anybody else REALLY miss ActiveCaptain?  

MarkMuck

RO# 362

Posted - Jan 15 2019 :  15:22:44  Show Profile  Reply with Quote
Hey Boaters. The wife and I are looking at trawlers. For years we've had twin engine gas boats. Many of the boats we are looking at have Yanmar diesels. We will be using the boat primarily near our harbor but plan to take some long trips with it too. Probably not the loop.

1. How are the Yanmar's? Reliable? Finding service? Fuel efficiency?
2. Many boats only have one Yanmar. This worries me for traveling. Just in case.

Thoughts and opinions are welcome.... Thanks....

Homeport: St. Louis

PascalG

RO# 12212



Posted - Jan 15 2019 :  16:49:27  Show Profile  Reply with Quote
It s not redundancy or reliability but maneuverability as well Yanmars are ok overall but not as “heavy duty”as a Cummins, John Deer etc

Pascal
1970 Hatteras 53 MY
26' Starfish sloop
12' Westphal Catboat
16' Hobie Cat
13' Sandbarhopper

Homeport: Miami, FL Go to Top of Page

RWS

RO# 25075



Posted - Jan 17 2019 :  05:49:38  Show Profile  Reply with Quote
quote:
Originally posted by PascalG

It s not redundancy or reliability but maneuverability as well Yanmars are ok overall but not as “heavy duty”as a Cummins, John Deer etc



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

True for many of these engines, but not across the board.

Yanmar uses a lot of aluminum to save weight - proper maintenance is critical to longevity.

I ALWAYS fresh water flush my Yanmars and genny after each use.

After 12 years the only item replaced has been one starter solenoid.

RWS


1983 Trojan International 10 Meter
Twin Yanmar 315 Turbodiesels
Solid Glass Hull
Woodless Stringers
Full Hull Liner
Trojan International Website: http://trojanboat.com/

Homeport: FL Go to Top of Page

GeeBee

RO# 385



Posted - Jan 21 2019 :  18:10:14  Show Profile  Reply with Quote
Yanmar is the diesel division of Toyota. Enough said. I once tried to buy a Yanmar powered Lexus in Paris. Wish I could have got it done.





"The trouble with socialism is that you eventually run out of other people's money."... Margaret Thatcher

Edited by - GeeBee on Jan 21 2019 18:11:03

Homeport: Lake Lanier, GA Go to Top of Page

pdecat

RO# 842



Posted - Jan 22 2019 :  09:13:16  Show Profile  Reply with Quote
If I had a choice I would buy the classic heavy iron engines. People have ben happy with Yanmars but IMO they are more sensitive to maintenance and hard running.

The fuel efficiency wont depend on the engine brand but on how fast you go.


Bruce



Edited by - pdecat on Jan 22 2019 09:14:41

Homeport: Gulf Coast FL Go to Top of Page

Captain Dan

RO# 382



Posted - Jan 22 2019 :  09:39:59  Show Profile  Reply with Quote
Every time I see 'Yanmar' I think of George.

I open carry to normalize open carry.

Homeport: Savannah, Georgia Go to Top of Page

pdecat

RO# 842



Posted - Jan 22 2019 :  09:50:06  Show Profile  Reply with Quote
What did he say about Yanmars??

Bruce



Edited by - pdecat on Jan 22 2019 09:51:39

Homeport: Gulf Coast FL Go to Top of Page

Captain Dan

RO# 382



Posted - Jan 22 2019 :  13:28:46  Show Profile  Reply with Quote
IIRC, he had one in his boat that he never had time to use.

I open carry to normalize open carry.

Homeport: Savannah, Georgia Go to Top of Page

Robski97

RO# 7334

Posted - Jan 27 2019 :  18:43:48  Show Profile  Reply with Quote
Good luck finding a good reliable service company... its a big problem here in Long island

Rob


2006 44 Sundancer

Homeport: Merrick, NY Go to Top of Page

b_arrington

RO# 18340

Posted - Feb 04 2019 :  11:54:54  Show Profile  Reply with Quote
The single vs. twin part doesn't bother me a bit. I only will consider boats with a single. As i understand it, the most common category of engine problem is fuel-related. On most boats with twins, they draw from the same fuel tank.

I'm currently looking for a new boat with a diesel engine. My mechanic strongly recommended to find one fitted with a Yanmar. He feels they are excellent engines that are very reliable in the long-term.


Brad

"Jennifer B."
2018 Back Cove 34

Homeport: Setauket, NY Go to Top of Page

abalmuth

RO# 13885



Posted - Feb 04 2019 :  15:10:13  Show Profile  Reply with Quote
quote:
Originally posted by b_arrington

The single vs. twin part doesn't bother me a bit. I only will consider boats with a single. As i understand it, the most common category of engine problem is fuel-related. On most boats with twins, they draw from the same fuel tank.

I'm currently looking for a new boat with a diesel engine. My mechanic strongly recommended to find one fitted with a Yanmar. He feels they are excellent engines that are very reliable in the long-term.

Brad
RE…On most boats with twins, they draw from the same fuel tank.
Not so, my engines each draw normally from their own tanks- however I do have the option of directing fuel in many ways if needed


Carver Voyager 530 with Volvo 122's/610HP
Light travels faster than sound. This is why some people appear bright
until you hear them speak.........

Homeport: Huntington/Greenport, NY Go to Top of Page

b_arrington

RO# 18340

Posted - Feb 04 2019 :  17:20:51  Show Profile  Reply with Quote
quote:

RE…On most boats with twins, they draw from the same fuel tank.
Not so, my engines each draw normally from their own tanks- however I do have the option of directing fuel in many ways if needed



Ah, OK. I guess I should have said that under a certain size it's pretty common to have a single tank. Your boat looks to be considerably above that size. The size of boat I'm looking at certainly would have a single tank.


Brad

"Jennifer B."
2018 Back Cove 34

Homeport: Setauket, NY Go to Top of Page

abalmuth

RO# 13885



Posted - Feb 04 2019 :  17:35:18  Show Profile  Reply with Quote
Brad
I believe that Yanmar makes a good product, But i have to agree with Robs statement "Good luck finding a good reliable service company... its a big problem here in Long island"
There are some that are good but i dont believe are as reliable as most clients would like., just my 2cents


Carver Voyager 530 with Volvo 122's/610HP
Light travels faster than sound. This is why some people appear bright
until you hear them speak.........

Homeport: Huntington/Greenport, NY Go to Top of Page

PascalG

RO# 12212



Posted - Feb 05 2019 :  08:03:52  Show Profile  Reply with Quote
The reason behind the number of tank is simply space and location. Often builders have to split the fuel tankage in two or more tanks so they fit enough capcaity. When using alum tanks, getting tow or three smaller tanks in is easier than a single big one. Especially since alum tanks eventually need to be replaced

Dual tanks doesnt necessrily increase reliabiilty since people almost always fill all the tanks at the same time. Bad fuel is very rare anyway and good filtration common on diesel handle normal contamination.

Th boat i run has a single 2000 gal fiberglass keel tank. Best possible setup


Pascal
1970 Hatteras 53 MY
26' Starfish sloop
12' Westphal Catboat
16' Hobie Cat
13' Sandbarhopper

Homeport: Miami, FL Go to Top of Page

smitty477

RO# 31913



Posted - Feb 05 2019 :  09:59:39  Show Profile  Reply with Quote
quote:
Originally posted by GeeBee

Yanmar is the diesel division of Toyota. Enough said. I once tried to buy a Yanmar powered Lexus in Paris. Wish I could have got it done.








Yanmar and Toyota began a limited joint venture in the marine market place in 2015-2016.
Hino is/was the diesel production company assumed by Toyota in about 1967. Hino motors was/is the company that participated and is participating in the heavily quoted SPC production systems. For those of us who have had Hino marine diesels their robust nature is well appreciated.



Homeport: NY Go to Top of Page

smitty477

RO# 31913



Posted - Feb 05 2019 :  10:00:58  Show Profile  Reply with Quote
quote:
Originally posted by GeeBee

Yanmar is the diesel division of Toyota. Enough said. I once tried to buy a Yanmar powered Lexus in Paris. Wish I could have got it done.








Yanmar and Toyota began a limited joint venture in the marine market place in 2015-2016.
Hino is/was the diesel production company assumed by Toyota in about 1967. Hino motors was/is the company that participated and is participating in the heavily quoted SPC production systems. For those of us who have had Hino marine diesels their robust nature is well appreciated.



Homeport: NY Go to Top of Page
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