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Old 17-07-2013, 10:00   #16
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Thumbs up Re: New Small Car Diesels - Convert For Marine Use?

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Originally Posted by goboatingnow View Post
Couldnt you just force California to secede , think of all the benefits...

dave
No, California is a great place... Besides, I am from there.

Don't get me wrong, I appreciate the clean air that results from eliminating that last .005% of particulate contaminates at great expense...

It makes perfect sense.

After all, the air will be so much cleaner for all of us right? Especially all those folks in China, Indonesia, India and other environmental pioneers....
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Old 17-07-2013, 10:04   #17
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Re: New Small Car Diesels - Convert For Marine Use?

Quote:
Don't get me wrong, I appreciate the clean air that results from eliminating that last .005% of particulate contaminates at great expense...
quite correct and of course the lawmakers are working on reducing that to . 0005%!!

and mandating "stop-start" engine on boats, imagine the fun in that

dave
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Old 17-07-2013, 10:22   #18
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Re: New Small Car Diesels - Convert For Marine Use?

I would want to understand the duty cycle rating on the auto engine before deciding to try it in a boat. Big difference in demand between the two applications.
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Old 17-07-2013, 10:27   #19
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Re: New Small Car Diesels - Convert For Marine Use?

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Originally Posted by DotDun View Post
I would want to understand the duty cycle rating on the auto engine before deciding to try it in a boat. Big difference in demand between the two applications.
Most diesel engines in larger sizes are derived from transport orientated blocks. in smaller sizes typically pump and generator engines have been used etc

Volvo use light truck SUV engine blocks as do yanmar, Nanni, vetus etc


duty cycle is a function of de-rating really. one of the problems in marine useage especially in larger horsepowers is that the block is pumped up to deliver horse powers not typically in the auto usage ( yanmar 6 cylinder etc)

Using ( in Europe) a common, incredibly reliable small diesels used in light vans and commercials generally provides a very simple and very reliable conversion if done correctly
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Old 17-07-2013, 11:32   #20
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Re: New Small Car Diesels - Convert For Marine Use?

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Originally Posted by goboatingnow View Post
Couldnt you just force California to secede , think of all the benefits...

dave

HERE, HERE NOW, ENOUGH OF THAT TALK......DON'T EVEN THINK ABOUT IT!!!

What would we folks here in Massachusetts ..... who has to be alerted every time California farts because of where Massachusetts has its nose.....do without all the regulations imposed for the good by the "sky is falling mam" radicals???

Cannot go on further, my reply will only get reported by a radical and deleted.
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Old 17-07-2013, 12:19   #21
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Re: New Small Car Diesels - Convert For Marine Use?

Quote:
Originally Posted by goboatingnow View Post
Most diesel engines in larger sizes are derived from transport orientated blocks. in smaller sizes typically pump and generator engines have been used etc

Volvo use light truck SUV engine blocks as do yanmar, Nanni, vetus etc


duty cycle is a function of de-rating really. one of the problems in marine useage especially in larger horsepowers is that the block is pumped up to deliver horse powers not typically in the auto usage ( yanmar 6 cylinder etc)

Using ( in Europe) a common, incredibly reliable small diesels used in light vans and commercials generally provides a very simple and very reliable conversion if done correctly
dave
Agree, but even truck/van duty cycle requirements are different than cars.

Car = 20% (but changing as smaller engines are becoming more common)
Boat/Airplane = 80%

Application makes the difference in how long an engine will last.
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Old 17-07-2013, 18:25   #22
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Quote:
Originally Posted by DotDun View Post

Agree, but even truck/van duty cycle requirements are different than cars.

Car = 20% (but changing as smaller engines are becoming more common)
Boat/Airplane = 80%

Application makes the difference in how long an engine will last.
I don't see any data that specifically sets marinized units apart.

Over here BMC ( taxi diesel) has been marinized for ages , very long lasting.

Given the life of auto diesels gets better and better , I don't see why it wouldn't transfer to boats

Dave
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Old 17-07-2013, 19:03   #23
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Re: New Small Car Diesels - Convert For Marine Use?

[QUOTE=charliehows;1286817]was looking through old threads on converting auto/tractor engs for boat use - anyone thought about/tried converting any of the new small car engines now popping up on the market - last time i asked i was quoted $10000 for a new yanmar 30hp 3 cyl eng and trans, gotta be able to do a conversion for half that..

The John Deere Greens Mower, as in golf course, has a 3 cylinder Yanmar.
I put one in an 83 Mazda B2000. My daughter fuels up once a month.
The engine I got, had 5000 hours and runs like a top. $400. No smoking or knocking! Just that un-mistakeable diesel sound..! It's now her, "Deere Mazda..!"
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Old 17-07-2013, 19:17   #24
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Re: New Small Car Diesels - Convert For Marine Use?

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Believe the new auto diesels use electronic controlled injection. That alone makes them unsuitable for boat use. Supplying clean, water free diesel is enough of a problem on a boat, without having to worry about those pesky electrons.
yep.... if the exhaust aint perfect... you arent going anywhere! Even if you're in Timbuktu with a hurricane bearing down.... (does Timbuktu have a harbor? )
But for the OP: if you can find a good small diesel, there are many universal type heat exchangers available... connected to the block with ruber hoses. A water cooled exhaust elbow can be welded up and may out last your average Yanmar OE one. You need an extra crank pully to drive a raw water pump.. no big deal... but all of the above takes time, trial and error.... Transmissions are a bigger headache though......
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Old 17-07-2013, 19:29   #25
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Re: New Small Car Diesels - Convert For Marine Use?

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Originally Posted by goboatingnow View Post
Couldnt you just force California to secede , think of all the benefits...
That would be seriously cool! But you out-of-state folks are going to have to surrender all your Apple stock, and your Google stock, and....
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Old 17-07-2013, 19:59   #26
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Re: New Small Car Diesels - Convert For Marine Use?

We're working on Texas first.
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Old 17-07-2013, 21:16   #27
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Re: New Small Car Diesels - Convert For Marine Use?

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Originally Posted by goboatingnow View Post
I don't see any data that specifically sets marinized units apart.

Over here BMC ( taxi diesel) has been marinized for ages , very long lasting.

Given the life of auto diesels gets better and better , I don't see why it wouldn't transfer to boats

Dave
The is plenty of evidence that marine application duty cycle is higher than cars. It's accepted that car engines run about 20% and boats engines about 80%.

If you want to read about how that affects engine life, take a look at:

http://wvuscholar.wvu.edu:8881/R/?fu...bject_id=21096
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Old 19-07-2013, 01:29   #28
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Re: New Small Car Diesels - Convert For Marine Use?

Hi folks, there are some photos of a marinization of a Kubotu V2203 at:

Cruisers & Sailing Forums > Cruisers & Sailing Photo Gallery > Sailing & Cruising > Yacht Maintainance & Boat Building

I tried to post some detailed comments but they appear to have become lost in the ether somewhere.
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Old 19-07-2013, 05:45   #29
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Re: New Small Car Diesels - Convert For Marine Use?

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Originally Posted by Bash View Post
That would be seriously cool! But you out-of-state folks are going to have to surrender all your Apple stock, and your Google stock, and....
acording to the senate hearings , I think its Ireland that might gain, Apple would suddenly have to register somewhere at last, certainly its doesnt exist in the US

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Old 19-07-2013, 05:47   #30
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Re: New Small Car Diesels - Convert For Marine Use?

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Originally Posted by DotDun View Post
The is plenty of evidence that marine application duty cycle is higher than cars. It's accepted that car engines run about 20% and boats engines about 80%.

If you want to read about how that affects engine life, take a look at:

http://wvuscholar.wvu.edu:8881/R/?fu...bject_id=21096
commercial marine engines are highly derated due to the extended duty cycles. no of this features in your average yacht.

dave
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